National Toxicology Program

National Toxicology Program
https://ntp.niehs.nih.gov/go/2246

TR 393 Mouse Pathology Tables

NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97
Route: DOSED WATER                                                                                                Time: 08:31:49




       Facility:  Battelle Columbus Laboratory

       Chemical CAS #:  7681-49-4

       Lock Date:  None

       Cage Range:  All

       Reasons For Removal:    All

       Removal Date Range:     All

       Treatment Groups:       Include All




































Note:  Animals arranged according to CID number

                                                              Page   1

NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 4| 1| 7| 6| 7| 1| 4| 7| 7| 7| 7| 7| 4|             
                             DAY ON TEST   | 3| 5| 3| 3| 2| 5| 5| 3| 3| 3| 3| 3| 5| 6| 2| 7| 3| 6| 5| 3| 3| 3| 2| 3| 5|             
                                           | 0| 9| 0| 0| 2| 7| 9| 1| 1| 1| 1| 1| 8| 6| 9| 0| 1| 5| 9| 1| 1| 2| 9| 2| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                              X                           |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
      Hepatocellular Carcinoma             | X           X                                X              X     X      |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |    X                                            X        X        X  X   |             
      Hepatocellular Adenoma, Multiple     | X     X  X           X  X  X              X  X              X            |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             | X                                                                 X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +                                   +  +           +  +  +      |             
      Fibrosarcoma, Metastatic, Skin       |                                              X                           |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                              X                           |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Acinus, Adenocarcinoma               |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page   2                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 4| 1| 7| 6| 7| 1| 4| 7| 7| 7| 7| 7| 4|             
                             DAY ON TEST   | 3| 5| 3| 3| 2| 5| 5| 3| 3| 3| 3| 3| 5| 6| 2| 7| 3| 6| 5| 3| 3| 3| 2| 3| 5|             
                                           | 0| 9| 0| 0| 2| 7| 9| 1| 1| 1| 1| 1| 8| 6| 9| 0| 1| 5| 9| 1| 1| 2| 9| 2| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Squamous Cell Papilloma              |                                                                X         |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +     +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Adenoma               |          X     X           X     X           X                 X         |             
      Pars Distalis, Adenoma, Multiple     |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                              X                           |             
      Follicular Cell, Adenoma, Multiple   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma, Papillary               |                                                                          |             
      Fibrosarcoma, Metastatic, Skin       |                                              X                           |             
      Granulosa Cell Tumor Benign          |                                                                          |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Luteoma                              |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |       X                                                                  |             
      Histiocytic Sarcoma                  |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   3                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 4| 1| 7| 6| 7| 1| 4| 7| 7| 7| 7| 7| 4|             
                             DAY ON TEST   | 3| 5| 3| 3| 2| 5| 5| 3| 3| 3| 3| 3| 5| 6| 2| 7| 3| 6| 5| 3| 3| 3| 2| 3| 5|             
                                           | 0| 9| 0| 0| 2| 7| 9| 1| 1| 1| 1| 1| 8| 6| 9| 0| 1| 5| 9| 1| 1| 2| 9| 2| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Polyp Stromal                        |                                                                         X|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma             |                            X                                             |             
      Femoral, Histiocytic Sarcoma         |                            X                                             |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Humerus, Histiocytic Sarcoma         |                                                                          |             
      Tibia, Histiocytic Sarcoma           |                            X                                             |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lumbar, Histiocytic Sarcoma          |                                                                          |             
      Mediastinal, Histiocytic Sarcoma     |                                                                          |             
      Mediastinal, Lymphoma Malignant Mixed| X                       X                                         X      |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Renal, Histiocytic Sarcoma           |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                   X      |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             | X                                                                 X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             | X                                                                 X      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   4                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 4| 1| 7| 6| 7| 1| 4| 7| 7| 7| 7| 7| 4|             
                             DAY ON TEST   | 3| 5| 3| 3| 2| 5| 5| 3| 3| 3| 3| 3| 5| 6| 2| 7| 3| 6| 5| 3| 3| 3| 2| 3| 5|             
                                           | 0| 9| 0| 0| 2| 7| 9| 1| 1| 1| 1| 1| 8| 6| 9| 0| 1| 5| 9| 1| 1| 2| 9| 2| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Subcutaneous Tissue, Fibrosarcoma    |                                              X                       X   |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +     +  +  +  +  +  +  +|             
      Femur, Osteosarcoma                  |                                                                          |             
      Femur, Synovial Tissue, Sarcoma      |                         X                                                |             
      Humerus, Hemangiosarcoma             |                            X                                             |             
      Maxilla, Adenocarcinoma, Metastatic, |                                                                          |             
           Harderian Gland                 |                                                          X               |             
      Rib, Osteoma                         |                                                                          |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                        +           +                     |             
      Histiocytic Sarcoma                  |                                                                          |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                          X               |             
      Alveolar/Bronchiolar Adenoma         |             X              X                                             |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           | X                                                                        |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   5                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 4| 1| 7| 6| 7| 1| 4| 7| 7| 7| 7| 7| 4|             
                             DAY ON TEST   | 3| 5| 3| 3| 2| 5| 5| 3| 3| 3| 3| 3| 5| 6| 2| 7| 3| 6| 5| 3| 3| 3| 2| 3| 5|             
                                           | 0| 9| 0| 0| 2| 7| 9| 1| 1| 1| 1| 1| 8| 6| 9| 0| 1| 5| 9| 1| 1| 2| 9| 2| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
      Mediastinum, Fibrosarcoma,           |                                                                          |             
          Metastatic, Skin                 |                                                                      X   |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                          X               |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                          +               |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | I  M  M  M  +  M  +  M  M  M  +  +  +  +  M  +  M  +  +  +  +  +  M  +  +|             
      Adenocarcinoma                       |                                                          X               |             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                              X                           |             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                            X                                             |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             | X                       X                                         X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   6                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 7| 6| 6| 1| 7| 7| 1| 5| 6| 7| 5| 7| 7| 7| 7| 7| 6| 1| 7| 1| 7| 6| 5|             
                             DAY ON TEST   | 6| 2| 2| 3| 4| 6| 3| 3| 6| 1| 3| 3| 9| 3| 3| 3| 2| 3| 7| 6| 3| 6| 2| 5| 2|             
                                           | 5| 2| 9| 7| 4| 6| 2| 2| 5| 8| 2| 2| 2| 2| 2| 2| 9| 3| 6| 6| 3| 6| 9| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Undifferentiated Cell Type       |       X                                                                  |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                            X                    X                        |             
      Hepatocellular Carcinoma             |                                                                          |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |       X     X        X     X           X        X                 X      |             
      Hepatocellular Adenoma, Multiple     |    X              X                 X     X  X     X        X            |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X                                   X                          X   |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |    +  +     +                    +              +  +              +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Acinus, Adenocarcinoma               |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page   7                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 7| 6| 6| 1| 7| 7| 1| 5| 6| 7| 5| 7| 7| 7| 7| 7| 6| 1| 7| 1| 7| 6| 5|             
                             DAY ON TEST   | 6| 2| 2| 3| 4| 6| 3| 3| 6| 1| 3| 3| 9| 3| 3| 3| 2| 3| 7| 6| 3| 6| 2| 5| 2|             
                                           | 5| 2| 9| 7| 4| 6| 2| 2| 5| 8| 2| 2| 2| 2| 2| 2| 9| 3| 6| 6| 3| 6| 9| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Squamous Cell Papilloma              |             X                                                            |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Tooth                                   |    +  +  +  +     +  +     +  +  +  +  +  +  +  +  +  +     +     +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Adenoma               |             X                       X     X        X  X              X  X|             
      Pars Distalis, Adenoma, Multiple     |                                                                   X      |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                                                          |             
      Follicular Cell, Adenoma, Multiple   |             X                                                            |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                              +                           |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma, Papillary               |                                        X                                 |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Granulosa Cell Tumor Benign          |                                           X                              |             
      Histiocytic Sarcoma                  |                                                                          |             
      Luteoma                              |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   8                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 7| 6| 6| 1| 7| 7| 1| 5| 6| 7| 5| 7| 7| 7| 7| 7| 6| 1| 7| 1| 7| 6| 5|             
                             DAY ON TEST   | 6| 2| 2| 3| 4| 6| 3| 3| 6| 1| 3| 3| 9| 3| 3| 3| 2| 3| 7| 6| 3| 6| 2| 5| 2|             
                                           | 5| 2| 9| 7| 4| 6| 2| 2| 5| 8| 2| 2| 2| 2| 2| 2| 9| 3| 6| 6| 3| 6| 9| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Polyp Stromal                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |             +                                                            |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma             |                                                                          |             
      Femoral, Histiocytic Sarcoma         |                                                                          |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Humerus, Histiocytic Sarcoma         |                                                                          |             
      Tibia, Histiocytic Sarcoma           |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lumbar, Histiocytic Sarcoma          |                                                                          |             
      Mediastinal, Histiocytic Sarcoma     |                                                                          |             
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                           X                          X   |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |       X                                                                  |             
      Renal, Histiocytic Sarcoma           |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                           X                              |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                  X                                       |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X                                   X                          X   |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   9                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 7| 6| 6| 1| 7| 7| 1| 5| 6| 7| 5| 7| 7| 7| 7| 7| 6| 1| 7| 1| 7| 6| 5|             
                             DAY ON TEST   | 6| 2| 2| 3| 4| 6| 3| 3| 6| 1| 3| 3| 9| 3| 3| 3| 2| 3| 7| 6| 3| 6| 2| 5| 2|             
                                           | 5| 2| 9| 7| 4| 6| 2| 2| 5| 8| 2| 2| 2| 2| 2| 2| 9| 3| 6| 6| 3| 6| 9| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X                                   X                          X   |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                          X   |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma                       |                                     X                                    |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +  +  +  +     +  +     +  +  +  +  +  +  +  +  +  +     +     +  +  +|             
      Femur, Osteosarcoma                  |                                                                          |             
      Femur, Synovial Tissue, Sarcoma      |                                                                          |             
      Humerus, Hemangiosarcoma             |                                                                          |             
      Maxilla, Adenocarcinoma, Metastatic, |                                                                          |             
           Harderian Gland                 |                                                                          |             
      Rib, Osteoma                         |       X                                                                  |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         | +              +        +                                +     +         |             
      Histiocytic Sarcoma                  |                                                                          |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |          +                                                               |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |          +                                                               |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
      Alveolar/Bronchiolar Adenoma         |                                     X                                    |             
      Alveolar/Bronchiolar Carcinoma       |                                  X                                       |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  10                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 7| 6| 6| 1| 7| 7| 1| 5| 6| 7| 5| 7| 7| 7| 7| 7| 6| 1| 7| 1| 7| 6| 5|             
                             DAY ON TEST   | 6| 2| 2| 3| 4| 6| 3| 3| 6| 1| 3| 3| 9| 3| 3| 3| 2| 3| 7| 6| 3| 6| 2| 5| 2|             
                                           | 5| 2| 9| 7| 4| 6| 2| 2| 5| 8| 2| 2| 2| 2| 2| 2| 9| 3| 6| 6| 3| 6| 9| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
      Mediastinum, Fibrosarcoma,           |                                                                          |             
          Metastatic, Skin                 |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +  M  +  M  M  M  +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +  M  +|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X                                   X                          X   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  11                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 6| 7| 7| 4| 7| 7| 7| 6| 7| 7| 7| 4| 7| 7| 5| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 8| 0| 3| 2| 5| 3| 2| 2| 1| 3| 2| 3| 5| 3| 3| 6| 3| 9| 2| 1| 3| 0| 1| 3|             
                                           | 3| 9| 2| 3| 9| 8| 3| 2| 9| 0| 3| 9| 3| 8| 3| 6| 2| 6| 1| 9| 5| 6| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
      Hepatocellular Carcinoma             |       X  X  X              X        X              X                     |             
      Hepatocellular Carcinoma, Multiple   |                                                             X            |             
      Hepatocellular Adenoma               | X           X  X     X  X              X                       X        X|             
      Hepatocellular Adenoma, Multiple     |          X                       X  X        X           X           X   |             
      Histiocytic Sarcoma                  |       X                                         X                 X      |             
      Lymphoma Malignant Lymphocytic       |                                                                      X   |             
      Lymphoma Malignant Mixed             |          X                                                               |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +                                      +  +           +  +  +   |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                 X      |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |                                                                   X      |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Acinus, Adenocarcinoma               |                                           X                              |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  12                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 6| 7| 7| 4| 7| 7| 7| 6| 7| 7| 7| 4| 7| 7| 5| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 8| 0| 3| 2| 5| 3| 2| 2| 1| 3| 2| 3| 5| 3| 3| 6| 3| 9| 2| 1| 3| 0| 1| 3|             
                                           | 3| 9| 2| 3| 9| 8| 3| 2| 9| 0| 3| 9| 3| 8| 3| 6| 2| 6| 1| 9| 5| 6| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Squamous Cell Papilloma              |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                 X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +     +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                           X                              |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Adenoma               |             X                             X  X                 X         |             
      Pars Distalis, Adenoma, Multiple     |                                  X                                       |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                                                          |             
      Follicular Cell, Adenoma, Multiple   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma, Papillary               |                                     X                                    |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Granulosa Cell Tumor Benign          |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Luteoma                              |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                      X                                                   |             
      Histiocytic Sarcoma                  |       X                                         X                 X      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  13                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 6| 7| 7| 4| 7| 7| 7| 6| 7| 7| 7| 4| 7| 7| 5| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 8| 0| 3| 2| 5| 3| 2| 2| 1| 3| 2| 3| 5| 3| 3| 6| 3| 9| 2| 1| 3| 0| 1| 3|             
                                           | 3| 9| 2| 3| 9| 8| 3| 2| 9| 0| 3| 9| 3| 8| 3| 6| 2| 6| 1| 9| 5| 6| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Polyp Stromal                        |                                     X                                    |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                                                                   +      |             
      Histiocytic Sarcoma                  |                                                                   X      |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma             |                                                                          |             
      Femoral, Histiocytic Sarcoma         |       X                                                                  |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Undifferentiated Cell Type       |                                                                X         |             
      Humerus, Histiocytic Sarcoma         |                                                                          |             
      Tibia, Histiocytic Sarcoma           |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lumbar, Histiocytic Sarcoma          |                                                                   X      |             
      Mediastinal, Histiocytic Sarcoma     |                                                                   X      |             
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                X         |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Renal, Histiocytic Sarcoma           |                                                                   X      |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                X         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                   X      |             
      Lymphoma Malignant Lymphocytic       |                                                                      X   |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                   X      |             
      Lymphoma Malignant Lymphocytic       |                                                             X        X   |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                                                   X      |             
      Lymphoma Malignant Lymphocytic       |                                                                      X   |             
      Lymphoma Malignant Mixed             |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  14                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 6| 7| 7| 4| 7| 7| 7| 6| 7| 7| 7| 4| 7| 7| 5| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 8| 0| 3| 2| 5| 3| 2| 2| 1| 3| 2| 3| 5| 3| 3| 6| 3| 9| 2| 1| 3| 0| 1| 3|             
                                           | 3| 9| 2| 3| 9| 8| 3| 2| 9| 0| 3| 9| 3| 8| 3| 6| 2| 6| 1| 9| 5| 6| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Mixed             |          X                                                               |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femur, Osteosarcoma                  |                                                                          |             
      Femur, Synovial Tissue, Sarcoma      |                                                                          |             
      Humerus, Hemangiosarcoma             |                                                                          |             
      Maxilla, Adenocarcinoma, Metastatic, |                                                                          |             
           Harderian Gland                 |                                                                          |             
      Rib, Osteoma                         |                                                                          |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                   +      |             
      Histiocytic Sarcoma                  |                                                                   X      |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
      Alveolar/Bronchiolar Adenoma         |                                              X                           |             
      Alveolar/Bronchiolar Carcinoma       |                                                       X     X            |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |       X                                                           X      |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Osteosarcoma, Metastatic, Bone       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  15                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 6| 7| 7| 4| 7| 7| 7| 6| 7| 7| 7| 4| 7| 7| 5| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 8| 0| 3| 2| 5| 3| 2| 2| 1| 3| 2| 3| 5| 3| 3| 6| 3| 9| 2| 1| 3| 0| 1| 3|             
                                           | 3| 9| 2| 3| 9| 8| 3| 2| 9| 0| 3| 9| 3| 8| 3| 6| 2| 6| 1| 9| 5| 6| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
      Mediastinum, Fibrosarcoma,           |                                                                          |             
          Metastatic, Skin                 |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  M  +  +  M  +  M  M  +  M  +  +  +  +  +  M  +  M  M  +  M  +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Histiocytic Sarcoma                  |       X                                                           X      |             
      Lymphoma Malignant Lymphocytic       |                                                                      X   |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                 X      |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |       X                                         X                 X      |             
      Lymphoma Malignant Lymphocytic       |                                                             X        X   |             
      Lymphoma Malignant Mixed             |          X                                                               |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  16                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Hemangioma                           |          X                                                               |          1 |
      Hemangiosarcoma                      |                                                                          |          2 |
      Hepatocellular Carcinoma             |                                  X                                      X|         13 |
      Hepatocellular Carcinoma, Multiple   |                                                                          |          1 |
      Hepatocellular Adenoma               |    X                                   X  X  X        X                  |         25 |
      Hepatocellular Adenoma, Multiple     |       X                 X           X                    X              X|         27 |
      Histiocytic Sarcoma                  |                                                                          |          4 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          5 |
      Osteosarcoma, Metastatic, Bone       | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               | +     +                                +     +        +  +           +   |  28        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Acinus, Adenocarcinoma               |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  17                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          3 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Squamous Cell Papilloma              |                                              X                           |          3 |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +  +  +  +     +  +  +  +     +  +  +  +  +  +  +  +  +     +  +  +  +|  90        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            |                      +                                                   |   1        |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  96        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
      Adenoma                              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  M  +  +  +  +|  92        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Pars Distalis, Adenoma               |                      X  X                             X  X              X|         22 |
      Pars Distalis, Adenoma, Multiple     |                                           X                              |          3 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Follicular Cell, Adenoma             |       X              X                                                   |          3 |
      Follicular Cell, Adenoma, Multiple   |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          |                                                          +               |   2        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  98        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  18                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
      Cystadenoma, Papillary               |                         X                                                |          3 |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Granulosa Cell Tumor Benign          |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Luteoma                              |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Hemangioma                           |                                                                          |          2 |
      Histiocytic Sarcoma                  |                                                                          |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Polyp Stromal                        |                                                 X                        |          3 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood                                   |                                                                          |   2        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Femoral, Hemangiosarcoma             |                                                                          |          1 |
      Femoral, Histiocytic Sarcoma         |                                                                          |          2 |
      Femoral, Lymphoma Malignant          |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Humerus, Histiocytic Sarcoma         |    X                                                                     |          1 |
      Tibia, Histiocytic Sarcoma           |    X                                                                     |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Lumbar, Histiocytic Sarcoma          |                                                                          |          1 |
      Mediastinal, Histiocytic Sarcoma     |                                                                          |          1 |
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |          3 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Undifferentiated Cell Type       |                                     X                                    |          4 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Renal, Histiocytic Sarcoma           |                                                                          |          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                          |          1 |
      Renal, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +|  96        |
      Hemangioma                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |    X                                                                     |          3 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  19                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          3 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          5 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  99        |
      Hemangiosarcoma                      |                                                    X                     |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          5 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  96        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          4 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  98        |
      Adenocarcinoma                       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |          2 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +     +  +  +  +     +  +  +  +  +  +  +  +  +     +  +  +  +|  90        |
      Femur, Osteosarcoma                  | X                                                                        |          1 |
      Femur, Synovial Tissue, Sarcoma      |                                                                          |          1 |
      Humerus, Hemangiosarcoma             |                                                                          |          1 |
      Maxilla, Adenocarcinoma, Metastatic, |                                                                          |            |
           Harderian Gland                 |                                                                          |          1 |
      Rib, Osteoma                         |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +              +              +                             +            |  12        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  20                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |            |
                                           |                                                                          |            |
      Osteosarcoma, Metastatic, Bone       | X                                                                        |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Adenocarcinoma, Metastatic,          |                                                                          |            |
          Harderian Gland                  |                                                                          |          1 |
      Alveolar/Bronchiolar Adenoma         |                   X                                                      |          5 |
      Alveolar/Bronchiolar Carcinoma       |                                                                          |          3 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Osteosarcoma, Metastatic, Bone       | X                                                                        |          1 |
      Mediastinum, Fibrosarcoma,           |                                                                          |            |
          Metastatic, Skin                 |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Adenocarcinoma, Metastatic,          |                                                                          |            |
          Harderian Gland                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                        I                                 |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  I  +  +  +  M  +  M  +  M  M  +  +  M  +  +  +  +  +  M|  66        |
      Adenocarcinoma                       |                                                                          |          1 |
      Adenoma                              | X                       X                       X                        |          4 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  21                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 7| 5| 4| 1| 7| 7| 7| 6| 1| 7| 7| 3| 7| 7| 7| 4| 7| 7| 1| 4| 7| 6| 7|            |
                             DAY ON TEST   | 2| 3| 3| 9| 5| 6| 3| 3| 2| 6| 6| 3| 3| 5| 3| 3| 3| 5| 3| 3| 6| 5| 1| 2| 3|            |
                                           | 0| 6| 6| 2| 8| 6| 6| 6| 9| 2| 6| 7| 7| 8| 7| 7| 7| 8| 7| 7| 6| 8| 3| 0| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|     A      |
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 URINARY SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +| 100        |
      Histiocytic Sarcoma                  |    X                                                                     |          5 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                     X                                    |          5 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  22                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 6| 3| 7| 6| 6| 6| 7| 5| 4| 7| 7| 3| 2| 3| 7| 5| 3| 5| 7| 1| 6| 6| 2|             
                             DAY ON TEST   | 7| 5| 5| 4| 3| 9| 0| 9| 3| 0| 3| 0| 1| 1| 5| 7| 3| 5| 9| 6| 3| 9| 6| 7| 4|             
                                           | 9| 6| 2| 9| 0| 8| 3| 1| 0| 0| 3| 6| 3| 3| 9| 9| 0| 2| 5| 6| 1| 8| 6| 6| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +     +  +  +     +  +  +  +  +  +  M     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Hepatocellular Carcinoma             |                                     X                                    |             
      Hepatocellular Adenoma               |                                  X                                       |             
      Hepatocellular Adenoma, Multiple     |                      X              X              X     X               |             
      Hepatocholangiocarcinoma             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Mesentery                               |                            +     +                                   +   |             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +     +  +        +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +     +  +        +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  23                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 6| 3| 7| 6| 6| 6| 7| 5| 4| 7| 7| 3| 2| 3| 7| 5| 3| 5| 7| 1| 6| 6| 2|             
                             DAY ON TEST   | 7| 5| 5| 4| 3| 9| 0| 9| 3| 0| 3| 0| 1| 1| 5| 7| 3| 5| 9| 6| 3| 9| 6| 7| 4|             
                                           | 9| 6| 2| 9| 0| 8| 3| 1| 0| 0| 3| 6| 3| 3| 9| 9| 0| 2| 5| 6| 1| 8| 6| 6| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +     +  +        +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +     M  +  +     +  M  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  M  +|             
      Pars Distalis, Adenoma               |                                     X                                    |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Hemangiosarcoma                      |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                      +                                                   |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lumbar, Fibrosarcoma, Metastatic,    |                                                                          |             
           Skin                            |                                  X                                       |             
      Mediastinal,                         |                                                                          |             
          Hepatocholangiocarcinoma,        |                                                                          |             
          Metastatic, Liver                |                                                                          |             
      Renal, Fibrosarcoma, Metastatic, Skin|                                  X                                       |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +     +  +  +     +  +  +  +  +  M  +     +  +  +     +  +  +  +|             
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  24                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 6| 3| 7| 6| 6| 6| 7| 5| 4| 7| 7| 3| 2| 3| 7| 5| 3| 5| 7| 1| 6| 6| 2|             
                             DAY ON TEST   | 7| 5| 5| 4| 3| 9| 0| 9| 3| 0| 3| 0| 1| 1| 5| 7| 3| 5| 9| 6| 3| 9| 6| 7| 4|             
                                           | 9| 6| 2| 9| 0| 8| 3| 1| 0| 0| 3| 6| 3| 3| 9| 9| 0| 2| 5| 6| 1| 8| 6| 6| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  M  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
      Subcutaneous Tissue, Fibrosarcoma    |                   X              X                                       |             
      Subcutaneous Tissue, Hemangiosarcoma |                                     X                                    |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |    X                             X                                       |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +  M  +     +  +  M     +  +  +  +  +  +  +     +  +  I     +  +  +  +|             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +     +  +  +     +  +  +  +  +  +  +     +  +  +     +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                      X   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  25                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 5| 3| 1| 6| 7| 6| 6| 7| 2| 4| 5| 6| 7| 3| 5| 4| 2| 6| 5| 7| 5| 5| 4|            |
                             DAY ON TEST   | 1| 7| 8| 4| 3| 3| 3| 1| 8| 3| 8| 2| 3| 1| 3| 6| 7| 3| 7| 4| 7| 3| 6| 2| 7|            |
                                           | 1| 7| 7| 9| 5| 1| 2| 7| 0| 3| 6| 0| 4| 1| 6| 1| 1| 7| 8| 8| 9| 7| 8| 7| 8|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +     +  +     +  +  +  +     +  +  M  +  +  +     +  +  +|  40        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Hemangiosarcoma                      |                                                 X                        |          1 |
      Hepatocellular Carcinoma             |                X     X                                                   |          3 |
      Hepatocellular Adenoma               |                X                       X                                X|          4 |
      Hepatocellular Adenoma, Multiple     |                                                          X               |          5 |
      Hepatocholangiocarcinoma             |                                                             X            |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |          +           +                 +                                 |   6        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                             X            |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  26                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 5| 3| 1| 6| 7| 6| 6| 7| 2| 4| 5| 6| 7| 3| 5| 4| 2| 6| 5| 7| 5| 5| 4|            |
                             DAY ON TEST   | 1| 7| 8| 4| 3| 3| 3| 1| 8| 3| 8| 2| 3| 1| 3| 6| 7| 3| 7| 4| 7| 3| 6| 2| 7|            |
                                           | 1| 7| 7| 9| 5| 1| 2| 7| 0| 3| 6| 0| 4| 1| 6| 1| 1| 7| 8| 8| 9| 7| 8| 7| 8|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  M  +     +  M     +  +  +  +     +  +  +  +  +  M     +  +  +|  37        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
      Pars Distalis, Adenoma               |                                        X                 X               |          3 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Follicular Cell, Adenoma             |                                  X                       X               |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          |          M                                                               |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  M  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Hemangiosarcoma                      |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood                                   |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lumbar, Fibrosarcoma, Metastatic,    |                                                                          |            |
           Skin                            |                                                                          |          1 |
      Mediastinal,                         |                                                                          |            |
          Hepatocholangiocarcinoma,        |                                                                          |            |
          Metastatic, Liver                |                                                             X            |          1 |
      Renal, Fibrosarcoma, Metastatic, Skin|                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  27                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 5| 3| 1| 6| 7| 6| 6| 7| 2| 4| 5| 6| 7| 3| 5| 4| 2| 6| 5| 7| 5| 5| 4|            |
                             DAY ON TEST   | 1| 7| 8| 4| 3| 3| 3| 1| 8| 3| 8| 2| 3| 1| 3| 6| 7| 3| 7| 4| 7| 3| 6| 2| 7|            |
                                           | 1| 7| 7| 9| 5| 1| 2| 7| 0| 3| 6| 0| 4| 1| 6| 1| 1| 7| 8| 8| 9| 7| 8| 7| 8|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +     +  +     +  +  +  +     +  M  +  +  +  +     +  +  +|  40        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  41        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |          2 |
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |          +                                                               |   1        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          2 |
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                             X            |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  28                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 5| 3| 1| 6| 7| 6| 6| 7| 2| 4| 5| 6| 7| 3| 5| 4| 2| 6| 5| 7| 5| 5| 4|            |
                             DAY ON TEST   | 1| 7| 8| 4| 3| 3| 3| 1| 8| 3| 8| 2| 3| 1| 3| 6| 7| 3| 7| 4| 7| 3| 6| 2| 7|            |
                                           | 1| 7| 7| 9| 5| 1| 2| 7| 0| 3| 6| 0| 4| 1| 6| 1| 1| 7| 8| 8| 9| 7| 8| 7| 8|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 SPECIAL SENSES SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                              +                           |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +     +  +     +  +  +  M     +  +  M  M  +  +     +  +  +|  36        |
      Adenoma                              |                      X                                                   |          1 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +     +  +     +  +  +  +     +  +  +  +  +  +     +  +  +|  42        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  29                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 1| 7| 7| 1| 4| 7| 7| 7| 7| 1| 6| 7| 4| 6|             
                             DAY ON TEST   | 6| 5| 3| 3| 3| 3| 3| 8| 3| 3| 3| 6| 3| 2| 9| 5| 2| 3| 3| 2| 6| 7| 3| 5| 4|             
                                           | 5| 9| 1| 1| 1| 0| 1| 4| 1| 1| 0| 6| 2| 9| 8| 8| 9| 2| 2| 9| 6| 8| 0| 8| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             |    +  M  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                      X                                                   |             
                                            __________________________________________________________________________|             
   Intestine Large                         |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hepatoblastoma                       |                                                                          |             
      Hepatocellular Carcinoma             |          X  X  X                                               X         |             
      Hepatocellular Carcinoma, Multiple   |       X                                                                  |             
      Hepatocellular Adenoma               |    X                                   X     X  X                        |             
      Hepatocellular Adenoma, Multiple     |       X  X        X     X     X     X                                    |             
      Histiocytic Sarcoma                  |                      X                                                   |             
      Lymphoma Malignant Mixed             |                         X                                                |             
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |             
          Primary Site                     |                         X                                                |             
                                            __________________________________________________________________________|             
   Mesentery                               |       +     +        +  +  +  +     +                                    |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                      X                                                   |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                      X                                                   |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Squamous Cell Papilloma              |             X                                            X               |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Tooth                                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Hemangiosarcoma                      |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  30                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 1| 7| 7| 1| 4| 7| 7| 7| 7| 1| 6| 7| 4| 6|             
                             DAY ON TEST   | 6| 5| 3| 3| 3| 3| 3| 8| 3| 3| 3| 6| 3| 2| 9| 5| 2| 3| 3| 2| 6| 7| 3| 5| 4|             
                                           | 5| 9| 1| 1| 1| 0| 1| 4| 1| 1| 0| 6| 2| 9| 8| 8| 9| 2| 2| 9| 6| 8| 0| 8| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Histiocytic Sarcoma                  |                      X                                                   |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Pheochromocytoma Benign              |                                                                          |             
      Bilateral, Pheochromocytoma Benign   |             X                                                            |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Pars Distalis, Adenoma               |       X                 X                       X                        |             
      Pars Distalis, Adenoma, Multiple     |                                     X                                    |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Follicular Cell, Adenocarcinoma      |    X                                                                     |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Cystadenoma, Papillary               |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                      X                                                   |             
                                            __________________________________________________________________________|             
   Uterus                                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                                     X                                    |             
      Polyp Stromal                        |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Mediastinal, Histiocytic Sarcoma     |                      X                                                   |             
      Mediastinal, Lymphoma Malignant Mixed|                         X                                                |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Lymphoma Malignant Mixed             |                         X                                                |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |    +  M  +  +  M  +  +  +  +  +     +  +  +  +  M  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                      X                                                   |             
      Lymphoma Malignant Mixed             |                         X                                                |             
                                            __________________________________________________________________________|             
   Thymus                                  |    +  +  +  M  +  M  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                      X                                                   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  31                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 1| 7| 7| 1| 4| 7| 7| 7| 7| 1| 6| 7| 4| 6|             
                             DAY ON TEST   | 6| 5| 3| 3| 3| 3| 3| 8| 3| 3| 3| 6| 3| 2| 9| 5| 2| 3| 3| 2| 6| 7| 3| 5| 4|             
                                           | 5| 9| 1| 1| 1| 0| 1| 4| 1| 1| 0| 6| 2| 9| 8| 8| 9| 2| 2| 9| 6| 8| 0| 8| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Mixed             |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
      Subcutaneous Tissue, Mast Cell Tumor |                                                                          |             
          Malignant                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                         X|             
      Alveolar/Bronchiolar Adenoma         |                                                                X         |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |             X                                                            |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                X                                                         |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |             
          Primary Site                     |                         X                                                |             
                                            __________________________________________________________________________|             
   Nose                                    |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
      Fibrosarcoma                         |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                     +                                    |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |    +  M  M  +  +  +  +  +  +  +     +  M  +  +  M  +  +  +     +  +  +  +|             
      Adenocarcinoma                       |                                                                         X|             
      Adenoma                              |                                     X                                    |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  32                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 1| 7| 7| 1| 4| 7| 7| 7| 7| 1| 6| 7| 4| 6|             
                             DAY ON TEST   | 6| 5| 3| 3| 3| 3| 3| 8| 3| 3| 3| 6| 3| 2| 9| 5| 2| 3| 3| 2| 6| 7| 3| 5| 4|             
                                           | 5| 9| 1| 1| 1| 0| 1| 4| 1| 1| 0| 6| 2| 9| 8| 8| 9| 2| 2| 9| 6| 8| 0| 8| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Histiocytic Sarcoma                  |                      X                                                   |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |    +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +     +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                      X              X                                    |             
      Lymphoma Malignant Mixed             |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  33                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 6| 7| 7| 7| 7| 7| 1| 6| 6| 7| 7| 7| 7| 1| 1| 7| 6| 7| 4| 7| 7| 7| 7| 1|             
                             DAY ON TEST   | 5| 3| 3| 3| 2| 3| 3| 6| 2| 5| 3| 2| 3| 3| 6| 6| 3| 1| 2| 5| 3| 3| 3| 3| 6|             
                                           | 9| 6| 2| 2| 9| 2| 3| 6| 4| 2| 3| 9| 3| 3| 6| 5| 3| 7| 9| 8| 3| 6| 6| 6| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|             
     25 PPM                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Hemangioma                           |             X                                                            |             
      Hepatoblastoma                       |             X                                                            |             
      Hepatocellular Carcinoma             |                   X                                                  X   |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |             X                       X  X        X     X                  |             
      Hepatocellular Adenoma, Multiple     | X     X        X  X        X  X                          X  X  X         |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               | +     +     +                                   +                        |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hemangioma                           |       X                                                                  |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Squamous Cell Papilloma              |             X                                                            |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Hemangiosarcoma                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  34                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 6| 7| 7| 7| 7| 7| 1| 6| 6| 7| 7| 7| 7| 1| 1| 7| 6| 7| 4| 7| 7| 7| 7| 1|             
                             DAY ON TEST   | 5| 3| 3| 3| 2| 3| 3| 6| 2| 5| 3| 2| 3| 3| 6| 6| 3| 1| 2| 5| 3| 3| 3| 3| 6|             
                                           | 9| 6| 2| 2| 9| 2| 3| 6| 4| 2| 3| 9| 3| 3| 6| 5| 3| 7| 9| 8| 3| 6| 6| 6| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|             
     25 PPM                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Pheochromocytoma Benign              |                                                                X         |             
      Bilateral, Pheochromocytoma Benign   |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Adenoma                              |                                                    X                     |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +     +  +  +  +  +  M        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  M  +  +   |             
      Pars Distalis, Adenoma               |                X                                                         |             
      Pars Distalis, Adenoma, Multiple     |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Follicular Cell, Adenocarcinoma      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | I  +  +  +  I  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Cystadenoma, Papillary               |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Polyp Stromal                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Femoral, Hemangiosarcoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Mediastinal, Histiocytic Sarcoma     |                                                                          |             
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  35                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 6| 7| 7| 7| 7| 7| 1| 6| 6| 7| 7| 7| 7| 1| 1| 7| 6| 7| 4| 7| 7| 7| 7| 1|             
                             DAY ON TEST   | 5| 3| 3| 3| 2| 3| 3| 6| 2| 5| 3| 2| 3| 3| 6| 6| 3| 1| 2| 5| 3| 3| 3| 3| 6|             
                                           | 9| 6| 2| 2| 9| 2| 3| 6| 4| 2| 3| 9| 3| 3| 6| 5| 3| 7| 9| 8| 3| 6| 6| 6| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|             
     25 PPM                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Adenocarcinoma                       |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                   X      |             
      Subcutaneous Tissue, Mast Cell Tumor |                                                                          |             
          Malignant                        |                                                 X                        |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |    +                                                                     |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |    +                                                                     |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
      Alveolar/Bronchiolar Adenoma         |                X                                   X                     |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |                                                                          |             
      Alveolar/Bronchiolar Carcinoma       |                                                             X            |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                   +      |             
      Fibrosarcoma                         |                                                                   X      |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | M  M  M  +  M  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  36                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 6| 7| 7| 7| 7| 7| 1| 6| 6| 7| 7| 7| 7| 1| 1| 7| 6| 7| 4| 7| 7| 7| 7| 1|             
                             DAY ON TEST   | 5| 3| 3| 3| 2| 3| 3| 6| 2| 5| 3| 2| 3| 3| 6| 6| 3| 1| 2| 5| 3| 3| 3| 3| 6|             
                                           | 9| 6| 2| 2| 9| 2| 3| 6| 4| 2| 3| 9| 3| 3| 6| 5| 3| 7| 9| 8| 3| 6| 6| 6| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|             
                               ANIMAL ID   | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9|             
     25 PPM                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +     +  +  +  +  +  +        +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  37                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 4| 6| 5| 4| 6| 7| 1| 5| 3| 7| 1| 7| 5| 7| 4| 7| 1| 7| 7|              |            |
                             DAY ON TEST   | 3| 5| 7| 3| 5| 9| 3| 6| 8| 9| 3| 6| 3| 3| 3| 5| 3| 6| 3| 2|              |            |
                                           | 6| 8| 0| 4| 8| 8| 6| 5| 7| 5| 7| 6| 7| 4| 7| 9| 7| 5| 7| 9|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|              |     A      |
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Hemangioma                           |                                                                          |          1 |
      Hepatoblastoma                       |                                                                          |          1 |
      Hepatocellular Carcinoma             |                X              X                 X                        |          9 |
      Hepatocellular Carcinoma, Multiple   |                                     X                                    |          2 |
      Hepatocellular Adenoma               |                               X                          X               |         11 |
      Hepatocellular Adenoma, Multiple     | X              X  X     X           X     X                              |         21 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                         X           X           X                        |          4 |
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |            |
          Primary Site                     |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               | M              +        +  +        +                    +               |  16        |
      Fibrosarcoma, Metastatic, Skin       |                            X                                             |          1 |
      Hemangioma                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Histiocytic Sarcoma                  |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Squamous Cell Papilloma              | X                                                                        |          4 |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  38                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 4| 6| 5| 4| 6| 7| 1| 5| 3| 7| 1| 7| 5| 7| 4| 7| 1| 7| 7|              |            |
                             DAY ON TEST   | 3| 5| 7| 3| 5| 9| 3| 6| 8| 9| 3| 6| 3| 3| 3| 5| 3| 6| 3| 2|              |            |
                                           | 6| 8| 0| 4| 8| 8| 6| 5| 7| 5| 7| 6| 7| 4| 7| 9| 7| 5| 7| 9|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|              |     A      |
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
      Hemangiosarcoma                      |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Pheochromocytoma Benign              |                                                                          |          1 |
      Bilateral, Pheochromocytoma Benign   |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Adenoma                              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  59        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  59        |
      Pars Distalis, Adenoma               |                X                       X                                 |          6 |
      Pars Distalis, Adenoma, Multiple     |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Follicular Cell, Adenocarcinoma      |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +                       +                                                |   2        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  M     +  +               |  57        |
      Cystadenoma, Papillary               |                                                       X                  |          1 |
      Hemangiosarcoma                      |                X                                                         |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Polyp Stromal                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  62        |
      Femoral, Hemangiosarcoma             | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Mediastinal, Histiocytic Sarcoma     |                                                          X               |          2 |
      Mediastinal, Lymphoma Malignant Mixed|                                                       X                  |          2 |
      Pancreatic, Lymphoma Malignant Mixed |                                                       X                  |          1 |
      Renal, Lymphoma Malignant Mixed      |                         X                       X                        |          2 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  39                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 4| 6| 5| 4| 6| 7| 1| 5| 3| 7| 1| 7| 5| 7| 4| 7| 1| 7| 7|              |            |
                             DAY ON TEST   | 3| 5| 7| 3| 5| 9| 3| 6| 8| 9| 3| 6| 3| 3| 3| 5| 3| 6| 3| 2|              |            |
                                           | 6| 8| 0| 4| 8| 8| 6| 5| 7| 5| 7| 6| 7| 4| 7| 9| 7| 5| 7| 9|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|              |     A      |
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Lymphoma Malignant Mixed             |                         X                                                |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  57        |
      Histiocytic Sarcoma                  |                                                          X               |          1 |
      Lymphoma Malignant Mixed             |                         X                             X                  |          2 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Histiocytic Sarcoma                  |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                         X                       X     X                  |          4 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  M  +     +  I  +     +  +  +  +  +     +  +               |  56        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                         X                       X                        |          3 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +     +  M  +     +  +  +  +  +     +  +               |  59        |
      Adenocarcinoma                       |                                           X                              |          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Subcutaneous Tissue, Fibrosarcoma    |                            X                                             |          2 |
      Subcutaneous Tissue, Mast Cell Tumor |                                                                          |            |
          Malignant                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Adenocarcinoma, Metastatic,          |                                                                          |            |
          Harderian Gland                  |                                                                          |          1 |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          3 |
      Alveolar/Bronchiolar Adenoma,        |                                                                          |            |
          Multiple                         |                                                                          |          1 |
      Alveolar/Bronchiolar Carcinoma       |                                                       X                  |          2 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                          X               |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  40                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 4| 6| 5| 4| 6| 7| 1| 5| 3| 7| 1| 7| 5| 7| 4| 7| 1| 7| 7|              |            |
                             DAY ON TEST   | 3| 5| 7| 3| 5| 9| 3| 6| 8| 9| 3| 6| 3| 3| 3| 5| 3| 6| 3| 2|              |            |
                                           | 6| 8| 0| 4| 8| 8| 6| 5| 7| 5| 7| 6| 7| 4| 7| 9| 7| 5| 7| 9|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|              |     A      |
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
      Lymphoma Malignant Mixed             |                         X                       X                        |          2 |
      Osteosarcoma, Metastatic, Uncertain  |                                                                          |            |
          Primary Site                     |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +     +  +  M     +  +  +  +  +     +  +               |  59        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                                                          |   1        |
      Fibrosarcoma                         |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Eye                                     |                            +                                             |   2        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | +  M  M  +  +  M  +     +  M  +     +  +  +  +  +     +  +               |  48        |
      Adenocarcinoma                       |                                                                          |          1 |
      Adenoma                              |                   X                                                      |          2 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Histiocytic Sarcoma                  |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                         X                       X                        |          2 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  60        |
      Lymphoma Malignant Mixed             |                         X                             X                  |          2 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +     +  +  +     +  +  +  +  +     +  +               |  62        |
      Histiocytic Sarcoma                  |                                                          X               |          3 |
      Lymphoma Malignant Mixed             |                         X           X           X     X                  |          5 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  41                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 4| 1| 7| 7| 6| 1| 7| 3| 4| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 4| 1|             
                             DAY ON TEST   | 5| 8| 5| 6| 3| 3| 5| 6| 3| 1| 5| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 1| 6|             
                                           | 8| 7| 9| 5| 1| 1| 3| 5| 1| 3| 9| 1| 4| 0| 2| 0| 2| 0| 0| 2| 2| 1| 0| 1| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3|             
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +     +  +  +     +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                              X                           |             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Mixed                            |                                     X                                    |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Hepatocellular Carcinoma             |                                                             X            |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |                X                 X           X           X               |             
      Hepatocellular Adenoma, Multiple     | X           X                       X  X        X           X            |             
      Histiocytic Sarcoma                  |    X                                                                     |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X              X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               | +  +           +              +     +           +        +               |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X              X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  42                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 4| 1| 7| 7| 6| 1| 7| 3| 4| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 4| 1|             
                             DAY ON TEST   | 5| 8| 5| 6| 3| 3| 5| 6| 3| 1| 5| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 1| 6|             
                                           | 8| 7| 9| 5| 1| 1| 3| 5| 1| 3| 9| 1| 4| 0| 2| 0| 2| 0| 0| 2| 2| 1| 0| 1| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3|             
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Mast Cell Tumor Malignant            |                                                                          |             
      Squamous Cell Papilloma              |                                        X        X                        |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |    X                                                                     |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                    X                     |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Pheochromocytoma Benign              |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |             
      Adenoma                              |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +     +  +  +     M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M   |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Pars Distalis, Adenoma               |                                                             X            |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      C-Cell, Carcinoma                    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Hemangiosarcoma                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  43                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 4| 1| 7| 7| 6| 1| 7| 3| 4| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 4| 1|             
                             DAY ON TEST   | 5| 8| 5| 6| 3| 3| 5| 6| 3| 1| 5| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 1| 6|             
                                           | 8| 7| 9| 5| 1| 1| 3| 5| 1| 3| 9| 1| 4| 0| 2| 0| 2| 0| 0| 2| 2| 1| 0| 1| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3|             
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Polyp Stromal                        |                   X                                                      |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Femoral, Hemangiosarcoma             |                                     X                                    |             
      Femoral, Histiocytic Sarcoma         |                                                                          |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Femoral, Lymphoma Malignant Mixed    |                                     X                                    |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Humerus, Hemangiosarcoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Axillary, Lymphoma Malignant         |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Axillary, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                          X               |             
      Inguinal, Lymphoma Malignant Mixed   |                                     X                                    |             
      Inguinal, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                          X               |             
      Mediastinal, Histiocytic Sarcoma     |                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Mediastinal, Lymphoma Malignant Mixed|                                     X        X                           |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                          X               |             
      Pancreatic, Lymphoma Malignant Mixed |                                     X                                    |             
      Popliteal, Lymphoma Malignant Mixed  |                                     X                                    |             
      Renal, Lymphoma Malignant Mixed      |                                     X                                    |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                          X               |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | M  +  +     +  +  +     +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  44                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 4| 1| 7| 7| 6| 1| 7| 3| 4| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 4| 1|             
                             DAY ON TEST   | 5| 8| 5| 6| 3| 3| 5| 6| 3| 1| 5| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 1| 6|             
                                           | 8| 7| 9| 5| 1| 1| 3| 5| 1| 3| 9| 1| 4| 0| 2| 0| 2| 0| 0| 2| 2| 1| 0| 1| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3|             
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +     +  +  +     +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |    +                                                                     |             
      Histiocytic Sarcoma                  |    X                                                                     |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Alveolar/Bronchiolar Adenoma         |                                  X                                       |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |    X                                                                     |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |    X                                                                     |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  45                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 4| 1| 7| 7| 6| 1| 7| 3| 4| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 4| 1|             
                             DAY ON TEST   | 5| 8| 5| 6| 3| 3| 5| 6| 3| 1| 5| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 1| 6|             
                                           | 8| 7| 9| 5| 1| 1| 3| 5| 1| 3| 9| 1| 4| 0| 2| 0| 2| 0| 0| 2| 2| 1| 0| 1| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3|             
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
      Squamous Cell Papilloma              |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  M  +     +  +  M     +  +  +  +  +  +  +  M  +  +  +  +  M  M  +  +   |             
      Adenoma                              |                                        X  X                              |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X              X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +     +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
      Histiocytic Sarcoma                  |    X                                                                     |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X        X     X                     |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                          X               |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  46                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 1| 7| 1| 1| 1| 6| 7| 3| 7| 7| 7| 6| 6| 4| 7| 7| 7| 4| 4| 4| 7| 1| 7|             
                             DAY ON TEST   | 3| 2| 6| 3| 6| 6| 6| 5| 2| 7| 3| 3| 3| 1| 9| 5| 3| 3| 3| 5| 5| 5| 3| 6| 3|             
                                           | 0| 7| 5| 2| 6| 5| 5| 7| 4| 9| 3| 3| 3| 7| 2| 8| 3| 3| 6| 8| 9| 9| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6|             
     100 PPM                               | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Hemangiosarcoma                      |                                                                          |             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Mixed                            |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Hepatocellular Carcinoma             |                                  X                                       |             
      Hepatocellular Carcinoma, Multiple   |    X                                                                     |             
      Hepatocellular Adenoma               |                      X  X           X                                    |             
      Hepatocellular Adenoma, Multiple     |                                  X                 X  X                  |             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                    X                     |             
                                            __________________________________________________________________________|             
   Mesentery                               |                         +                 +        +  +                  |             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  47                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 1| 7| 1| 1| 1| 6| 7| 3| 7| 7| 7| 6| 6| 4| 7| 7| 7| 4| 4| 4| 7| 1| 7|             
                             DAY ON TEST   | 3| 2| 6| 3| 6| 6| 6| 5| 2| 7| 3| 3| 3| 1| 9| 5| 3| 3| 3| 5| 5| 5| 3| 6| 3|             
                                           | 0| 7| 5| 2| 6| 5| 5| 7| 4| 9| 3| 3| 3| 7| 2| 8| 3| 3| 6| 8| 9| 9| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6|             
     100 PPM                               | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Mast Cell Tumor Malignant            |                                                                          |             
      Squamous Cell Papilloma              |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Pheochromocytoma Benign              |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Adenoma                              |                                                                          |             
      Histiocytic Sarcoma                  |                                           X                              |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +     +     +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Pars Distalis, Adenoma               | X                                X                                       |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      C-Cell, Carcinoma                    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Hemangiosarcoma                      |                                                                   X      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  48                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 1| 7| 1| 1| 1| 6| 7| 3| 7| 7| 7| 6| 6| 4| 7| 7| 7| 4| 4| 4| 7| 1| 7|             
                             DAY ON TEST   | 3| 2| 6| 3| 6| 6| 6| 5| 2| 7| 3| 3| 3| 1| 9| 5| 3| 3| 3| 5| 5| 5| 3| 6| 3|             
                                           | 0| 7| 5| 2| 6| 5| 5| 7| 4| 9| 3| 3| 3| 7| 2| 8| 3| 3| 6| 8| 9| 9| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6|             
     100 PPM                               | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Polyp Stromal                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Femoral, Hemangiosarcoma             |                                                                          |             
      Femoral, Histiocytic Sarcoma         |                                           X                              |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Lymphocytic                      |                            X                                             |             
      Femoral, Lymphoma Malignant Mixed    |                                                                          |             
      Femoral, Lymphoma Malignant          |                                                                          |             
          Undifferentiated Cell Type       |                                                    X                     |             
      Humerus, Hemangiosarcoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Axillary, Lymphoma Malignant         |                                                                          |             
          Lymphocytic                      |                            X                                             |             
      Axillary, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Inguinal, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Mediastinal, Histiocytic Sarcoma     |                                           X                              |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                            X                                             |             
      Mediastinal, Lymphoma Malignant Mixed|                                                       X                  |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Popliteal, Lymphoma Malignant Mixed  |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | M  +     M           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +     +           +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                  X              X     X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  49                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 1| 7| 1| 1| 1| 6| 7| 3| 7| 7| 7| 6| 6| 4| 7| 7| 7| 4| 4| 4| 7| 1| 7|             
                             DAY ON TEST   | 3| 2| 6| 3| 6| 6| 6| 5| 2| 7| 3| 3| 3| 1| 9| 5| 3| 3| 3| 5| 5| 5| 3| 6| 3|             
                                           | 0| 7| 5| 2| 6| 5| 5| 7| 4| 9| 3| 3| 3| 7| 2| 8| 3| 3| 6| 8| 9| 9| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6|             
     100 PPM                               | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                  X              X     X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                    X                     |             
                                            __________________________________________________________________________|             
   Thymus                                  | M  +     +           +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  M     +|             
      Lymphoma Malignant Mixed             |                                  X                    X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                    X                     |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                      +                                                   |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                      +                                                   |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Alveolar/Bronchiolar Adenoma         |                                                       X                  |             
      Alveolar/Bronchiolar Carcinoma       |                         X        X                                       |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  50                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 1| 7| 1| 1| 1| 6| 7| 3| 7| 7| 7| 6| 6| 4| 7| 7| 7| 4| 4| 4| 7| 1| 7|             
                             DAY ON TEST   | 3| 2| 6| 3| 6| 6| 6| 5| 2| 7| 3| 3| 3| 1| 9| 5| 3| 3| 3| 5| 5| 5| 3| 6| 3|             
                                           | 0| 7| 5| 2| 6| 5| 5| 7| 4| 9| 3| 3| 3| 7| 2| 8| 3| 3| 6| 8| 9| 9| 4| 5| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                               ANIMAL ID   | 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6|             
     100 PPM                               | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |    +                       I                                             |             
      Squamous Cell Papilloma              |    X                                                                     |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                       +              +   |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +     +           +  +  M  +  +  +  +  M  +  +  M  +  +  M  +  M     +|             
      Adenoma                              |                                                       X                  |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                                       X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +     +           +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +     +     +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                            X                                             |             
      Lymphoma Malignant Mixed             |                                  X              X     X                  |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                    X                     |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  51                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  58        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  58        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Hemangiosarcoma                      |                                                 X                        |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |            |
          Mixed                            |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Hepatocellular Carcinoma             |          X        X  X  X     X                                          |          7 |
      Hepatocellular Carcinoma, Multiple   |                                                                          |          1 |
      Hepatocellular Adenoma               |                            X  X  X  X                    X               |         12 |
      Hepatocellular Adenoma, Multiple     |    X     X  X           X                       X                        |         14 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          2 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |          +           +  +        +        +     +  +                     |  18        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          2 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  52                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
          Cell Type                        |                                           X                              |          2 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          1 |
      Mast Cell Tumor Malignant            |                                           X                              |          1 |
      Squamous Cell Papilloma              |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            |                                                    +                     |   1        |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Pheochromocytoma Benign              |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Adenoma                              |    X                                                                     |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +     +  +     +               |  57        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  61        |
      Pars Distalis, Adenoma               |                X     X              X           X        X               |          8 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      C-Cell, Carcinoma                    |             X                                                            |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  53                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  I  +  +  +     +  +     +               |  58        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Hemangiosarcoma                      |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Polyp Stromal                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  61        |
      Femoral, Hemangiosarcoma             |                                                                          |          1 |
      Femoral, Histiocytic Sarcoma         |                                                                          |          1 |
      Femoral, Lymphoma Malignant          |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
      Femoral, Lymphoma Malignant Mixed    |                                                                          |          1 |
      Femoral, Lymphoma Malignant          |                                                                          |            |
          Undifferentiated Cell Type       |                                           X                              |          2 |
      Humerus, Hemangiosarcoma             |                                                          X               |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Axillary, Lymphoma Malignant         |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
      Axillary, Lymphoma Malignant         |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |          1 |
      Inguinal, Lymphoma Malignant         |                                                                          |            |
          Undifferentiated Cell Type       |                                           X                              |          2 |
      Mediastinal, Histiocytic Sarcoma     |                                                                          |          1 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |          3 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Undifferentiated Cell Type       |                                           X                              |          2 |
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |          1 |
      Popliteal, Lymphoma Malignant Mixed  |                                                                          |          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  54                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
      Renal, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  M     +  +     +               |  56        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  57        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          6 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          2 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  59        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          7 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          3 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  M  M  +  +  +  +  +  +  +  +     +  +     +               |  55        |
      Lymphoma Malignant Mixed             |    X                                                                     |          6 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          3 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                          |   1        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  55                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 NERVOUS SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +                                                  +                     |   3        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +                                                  +                     |   3        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          2 |
      Alveolar/Bronchiolar Carcinoma       |                                                                          |          2 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                   X                                                      |          1 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                                                          |   1        |
      Squamous Cell Papilloma              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Eye                                     |             +                                                            |   3        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | +  +  M  +  +  +  M  M  +  +  +  +  +  +  M     I  +     +               |  45        |
      Adenoma                              |          X  X              X  X                                          |          7 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          2 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  60        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +     +               |  63        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  56                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 4| 7| 7| 7| 6| 7| 7| 4| 6| 4| 7| 7| 7| 1| 7| 5| 1| 7|              |            |
                             DAY ON TEST   | 7| 3| 5| 3| 3| 3| 8| 3| 3| 5| 3| 5| 3| 3| 3| 6| 3| 5| 6| 3|              |            |
                                           | 8| 6| 8| 6| 0| 6| 4| 0| 0| 9| 4| 9| 7| 7| 7| 6| 0| 2| 5| 7|              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|              |     O      |
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|              |     T      |
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|              |     A      |
     100 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|              |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|              |            |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS - cont                   |                                                                          |            |
                                           |                                                                          |            |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          7 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                           X                              |          3 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  57                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Lymphocytic                      |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                            X                                             |             
      Hemangiosarcoma                      |                                                                          |             
      Hepatoblastoma                       |             X                                                            |             
      Hepatocellular Carcinoma             | X                    X                                   X  X            |             
      Hepatocellular Carcinoma, Multiple   |                X                                                         |             
      Hepatocellular Adenoma               |    X           X                          X                              |             
      Hepatocellular Adenoma, Multiple     |             X        X                 X     X                       X   |             
      Hepatocholangiocarcinoma             |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        | X                                         X                              |             
                                            __________________________________________________________________________|             
   Mesentery                               | +                                   +        +  +        +  +            |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lipoma                               |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  58                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Squamous Cell Papilloma              |                                                                          |             
      Squamous Cell Papilloma, Multiple    |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +     +  +  +     +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Pericardium,                         |                                                                          |             
          Hepatocholangiocarcinoma,        |                                                                          |             
          Metastatic, Liver                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Pheochromocytoma Benign              |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Pars Distalis, Adenoma               | X              X                          X  X                           |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  59                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                      +                    +                              |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma                          |                                                                          |             
      Cystadenoma, Papillary               |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Polyp Stromal                        |                                                                          |             
      Sarcoma Stromal                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Histiocytic Sarcoma         |                                                                          |             
      Maxilla, Histiocytic Sarcoma         |                                                                          |             
      Thoracic, Vertebra, Histiocytic      |                                                                          |             
          Sarcoma                          |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Mixed                            |                                                                          |             
      Inguinal, Histiocytic Sarcoma        |                                                                          |             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Mediastinal, Hepatoblastoma,         |                                                                          |             
          Metastatic, Liver                |                                                                          |             
      Mediastinal, Histiocytic Sarcoma     |                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  60                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                           X                              |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |             X                                                            |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        | X                                         X                              |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        | X                                         X                              |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                        X                                 |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
      Subcutaneous Tissue,                 |                                                                          |             
          Neurofibrosarcoma                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  61                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +     +  +  +     +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                   +                                   +           +      |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         | X                                                                        |             
      Alveolar/Bronchiolar Carcinoma       |                X                                                         |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                          X               |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Mediastinum, Hepatocellular          |                                                                          |             
          Carcinoma, Metastatic, Liver     |                                                                          |             
      Mediastinum, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                    I                     |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | M  +  M  +  +  +  +  M  +  +  +  M  I  +  M  M  M  +  +  M  M  M  +  M  +|             
      Adenoma                              |                                        X                                 |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | M  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  62                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 4| 7| 7| 1| 7| 7| 7| 1| 4| 7| 7| 7| 7| 6| 4| 1| 7| 7| 1| 1| 7| 7|             
                             DAY ON TEST   | 3| 5| 3| 5| 0| 3| 6| 3| 3| 3| 7| 5| 3| 3| 3| 3| 1| 3| 6| 3| 3| 3| 6| 3| 3|             
                                           | 1| 9| 1| 8| 9| 1| 6| 6| 1| 1| 9| 8| 1| 1| 1| 1| 0| 3| 6| 0| 2| 5| 5| 0| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0|             
     175 PPM                               | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        | X                                         X                              |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  63                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Lymphocytic                      |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
      Hepatoblastoma                       |                                                                          |             
      Hepatocellular Carcinoma             |    X  X              X                                                   |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |                X        X                       X  X        X     X      |             
      Hepatocellular Adenoma, Multiple     | X        X                    X              X        X              X   |             
      Hepatocholangiocarcinoma             |                                                                          |             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                         X           X                             X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                   X                                                      |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +     +  +        +  +     +  +  +  +           +        +      |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lipoma                               |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                   X                                                      |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |          X                                                               |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                        X                                 |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  64                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Squamous Cell Papilloma              |                X                                                         |             
      Squamous Cell Papilloma, Multiple    |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Pericardium,                         |                                                                          |             
          Hepatocholangiocarcinoma,        |                                                                          |             
          Metastatic, Liver                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |          X                                                               |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Pheochromocytoma Benign              |                                                             X            |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                         X                                                |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Pars Distalis, Adenoma               |                               X                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  65                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Follicular Cell, Adenoma             |    X     X                                                               |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma                          |                                                                          |             
      Cystadenoma, Papillary               |                                                                          |             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |          X                                                               |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                                    |             
      Polyp Stromal                        |                                                                          |             
      Sarcoma Stromal                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Histiocytic Sarcoma         |                                  X     X                                 |             
      Maxilla, Histiocytic Sarcoma         |                                        X                                 |             
      Thoracic, Vertebra, Histiocytic      |                                                                          |             
          Sarcoma                          |                                        X                                 |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Mixed                            |                                     X                                    |             
      Inguinal, Histiocytic Sarcoma        |                                                                          |             
      Inguinal, Lymphoma Malignant Mixed   |                                     X                                    |             
      Mediastinal, Hepatoblastoma,         |                                                                          |             
          Metastatic, Liver                |                                                                          |             
      Mediastinal, Histiocytic Sarcoma     |                                  X                                       |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                           X                              |             
      Mediastinal, Lymphoma Malignant Mixed|                         X           X                             X      |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                   X                                         X            |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  66                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
      Lymphoma Malignant Mixed             |                         X           X           X                 X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X           X                                                      |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X           X                                         X            |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  M  M  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                   X                                                      |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Subcutaneous Tissue, Fibrosarcoma    |                X                                X  X                     |             
      Subcutaneous Tissue,                 |                                                                          |             
          Neurofibrosarcoma                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  67                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |             +                                   +                        |             
      Fibrosarcoma, Metastatic, Skin       |                                                 X                        |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         | X                                                                        |             
      Alveolar/Bronchiolar Carcinoma       |                                                                      X   |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hepatoblastoma, Metastatic, Liver    |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
      Mediastinum, Hepatocellular          |                                                                          |             
          Carcinoma, Metastatic, Liver     |                                                                          |             
      Mediastinum, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                   X                                                      |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | M  M  M  +  +  +  M  M  +  M  M  M  M  M  M  M  M  M  M  +  +  M  M  M  M|             
      Adenoma                              |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                        X                                 |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  68                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 5| 2| 6| 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 0| 3| 1| 6| 3| 3| 3| 3| 3| 3| 8| 4| 1| 8| 3| 3| 3| 3| 6| 3| 3| 3| 3| 3|             
                                           | 0| 7| 2| 2| 5| 2| 2| 2| 0| 2| 2| 4| 1| 9| 8| 3| 0| 3| 3| 6| 3| 0| 3| 0| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3|             
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
      Lymphoma Malignant Mixed             |                                     X                             X      |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                  X     X                                 |             
      Lymphoma Malignant Lymphocytic       |                                           X                              |             
      Lymphoma Malignant Mixed             |                         X           X           X                 X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |       X           X                                         X            |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  69                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Lymphocytic                      |                                                          X               |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                                                       X                  |             
      Hepatoblastoma                       |          X                                                               |             
      Hepatocellular Carcinoma             |    X                                         X                    X  X   |             
      Hepatocellular Carcinoma, Multiple   |                                                                          |             
      Hepatocellular Adenoma               |       X        X           X           X           X  X                  |             
      Hepatocellular Adenoma, Multiple     |    X                 X        X                                   X      |             
      Hepatocholangiocarcinoma             |                         X                                                |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +     +        +  +                    +           +            |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                         X                                                |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lipoma                               |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hepatoblastoma, Metastatic, Liver    |          X                                                               |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                         X                                                |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  70                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Squamous Cell Papilloma              |          X                                   X                           |             
      Squamous Cell Papilloma, Multiple    |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                       X                  |             
      Hepatoblastoma, Metastatic, Liver    |          X                                                               |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Pericardium,                         |                                                                          |             
          Hepatocholangiocarcinoma,        |                                                                          |             
          Metastatic, Liver                |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Pheochromocytoma Benign              |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  M  +  +  +  +  M  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Pars Distalis, Adenoma               |                X           X  X  X              X     X           X      |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  71                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          |                                        +                                 |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cystadenoma                          |                                                                X         |             
      Cystadenoma, Papillary               |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Sarcoma, Metastatic, Uncertain       |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Polyp Stromal                        |                                                                          |             
      Sarcoma Stromal                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Histiocytic Sarcoma         |                                                                          |             
      Maxilla, Histiocytic Sarcoma         |                                                                          |             
      Thoracic, Vertebra, Histiocytic      |                                                                          |             
          Sarcoma                          |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Lymphocytic                      |                                                             X            |             
      Deep Cervical, Lymphoma Malignant    |                                                                          |             
          Mixed                            |                                                                          |             
      Inguinal, Histiocytic Sarcoma        |                                                 X                        |             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Mediastinal, Hepatoblastoma,         |                                                                          |             
          Metastatic, Liver                |          X                                                               |             
      Mediastinal, Histiocytic Sarcoma     |                                                 X                        |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                                             X            |             
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  72                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Pancreatic, Lymphoma Malignant Mixed |                                        X                                 |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                      X                 X                                 |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                        X                                 |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  M  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                                          |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                          X  X            |             
      Lymphoma Malignant Mixed             |                                        X     X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                      X                 X     X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                        X                                 |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
      Subcutaneous Tissue,                 |                                                                          |             
          Neurofibrosarcoma                | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  73                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                         +|             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |                                                    X                     |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hepatoblastoma, Metastatic, Liver    |          X                                                               |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |    X                                                                     |             
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |             
           Liver                           |                         X                                                |             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                      X                                                   |             
      Mediastinum, Hepatocellular          |                                                                          |             
          Carcinoma, Metastatic, Liver     |    X                                                                     |             
      Mediastinum, Lymphoma Malignant      |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | M  +  +  +  +  M  M  +  +  M  M  M  +  +  +  +  M  M  M  M  M  +  M  +  +|             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                             X            |             
      Lymphoma Malignant Mixed             |                                              X                           |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  74                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 6| 4| 4| 5| 7| 7| 7| 3| 7| 7| 7| 4| 7| 4| 7| 6| 7| 7| 6| 5| 4| 7| 4| 1|             
                             DAY ON TEST   | 6| 3| 5| 7| 0| 3| 3| 3| 6| 3| 3| 3| 5| 3| 5| 3| 0| 3| 3| 8| 7| 5| 3| 5| 6|             
                                           | 6| 2| 9| 7| 0| 0| 3| 3| 1| 6| 6| 6| 9| 0| 8| 6| 6| 6| 6| 4| 3| 9| 6| 9| 5|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5|             
     175 PPM                               | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                 X                        |             
      Lymphoma Malignant Lymphocytic       |                                                          X  X            |             
      Lymphoma Malignant Mixed             |                      X                 X     X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  75                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  97        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  97        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  97        |
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Hemangioma                           |                                                                          |          1 |
      Hemangiosarcoma                      |                                                                          |          1 |
      Hepatoblastoma                       |                                                                          |          2 |
      Hepatocellular Carcinoma             |                                                    X                     |         12 |
      Hepatocellular Carcinoma, Multiple   |                                                                          |          1 |
      Hepatocellular Adenoma               |    X                                         X     X  X                  |         19 |
      Hepatocellular Adenoma, Multiple     |                                  X                                X      |         17 |
      Hepatocholangiocarcinoma             |                                                                          |          1 |
      Histiocytic Sarcoma                  |                   X                                                      |          5 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                         X                                                |          4 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |    +                                         +        +  +        +      |  28        |
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lipoma                               |                                                                   X      |          1 |
      Lymphoma Malignant Lymphocytic       |                                                          X               |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Sarcoma, Metastatic, Uncertain       |                                                                          |            |
          Primary Site                     |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  76                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Hepatoblastoma, Metastatic, Liver    |                                                                          |          1 |
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Squamous Cell Papilloma              |                                                                          |          3 |
      Squamous Cell Papilloma, Multiple    |             X                                                            |          1 |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +  +  +  +  +  +     +  +  +  +        +  +  +  +  +  +     +  +      |  89        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |          1 |
      Hepatoblastoma, Metastatic, Liver    |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Pericardium,                         |                                                                          |            |
          Hepatocholangiocarcinoma,        |                                                                          |            |
          Metastatic, Liver                |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                            X                                             |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Sarcoma, Metastatic, Uncertain       |                                                                          |            |
          Primary Site                     |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  77                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Pheochromocytoma Benign              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Adenoma                              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  92        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  97        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Pars Distalis, Adenoma               |                            X                                             |         13 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                          X               |          1 |
      Follicular Cell, Adenoma             |                                                                          |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          |                                                          M               |   3        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Cystadenoma                          |                                                                          |          1 |
      Cystadenoma, Papillary               |                                                    X                     |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Lymphocytic       |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Sarcoma, Metastatic, Uncertain       |                                                                          |            |
          Primary Site                     |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                   X                                                      |          4 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Polyp Stromal                        |                                           X                              |          1 |
      Sarcoma Stromal                      |                                                    X                     |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Femoral, Histiocytic Sarcoma         |                                                                          |          2 |
      Maxilla, Histiocytic Sarcoma         |                                                                          |          1 |
      Thoracic, Vertebra, Histiocytic      |                                                                          |            |
          Sarcoma                          |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  78                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Deep Cervical, Lymphoma Malignant    |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
      Deep Cervical, Lymphoma Malignant    |                                                                          |            |
          Mixed                            |                                                                          |          1 |
      Inguinal, Histiocytic Sarcoma        |                                                                          |          1 |
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |          1 |
      Mediastinal, Hepatoblastoma,         |                                                                          |            |
          Metastatic, Liver                |                                                                          |          1 |
      Mediastinal, Histiocytic Sarcoma     |                                                                          |          2 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Lymphocytic                      |                            X                                             |          3 |
      Mediastinal, Lymphoma Malignant Mixed|                                                                          |          3 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Undifferentiated Cell Type       |                         X                                                |          4 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Lymphocytic                      |                            X                                             |          1 |
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |          1 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                          |          2 |
      Renal, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  94        |
      Hemangioma                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          5 |
      Lymphoma Malignant Mixed             |    X                                                                     |          7 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                         X                                                |          5 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          4 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  79                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
      Lymphoma Malignant Mixed             |    X                                                                     |          6 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                         X                                                |          6 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  92        |
      Histiocytic Sarcoma                  |                                                                          |          2 |
      Lymphoma Malignant Lymphocytic       |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Adenoma                              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Subcutaneous Tissue, Fibrosarcoma    |                                  X                 X                     |          5 |
      Subcutaneous Tissue,                 |                                                                          |            |
          Neurofibrosarcoma                |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +     +  +  +  +        +  +  +  +  +  +     +  +      |  89        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                      +              +  +                    +        +   |  11        |
      Fibrosarcoma, Metastatic, Skin       |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |       +                                                                  |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |       +                                                                  |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Alveolar/Bronchiolar Adenoma         |                         X                                                |          4 |
      Alveolar/Bronchiolar Carcinoma       |                                                       X                  |          3 |
      Fibrosarcoma, Metastatic, Skin       |                                  X                                       |          1 |
      Hepatoblastoma, Metastatic, Liver    |                                                                          |          1 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          2 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  80                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 7| 2| 2| 5| 7| 7| 1| 7| 7| 5| 7| 1| 1| 3| 7| 3| 7| 7| 7| 1| 7| 7| 1|  |            |
                             DAY ON TEST   | 5| 3| 7| 8| 6| 3| 3| 6| 3| 3| 7| 0| 6| 6| 4| 3| 1| 3| 3| 1| 6| 3| 3| 6|  |            |
                                           | 8| 6| 8| 6| 8| 7| 7| 5| 7| 1| 9| 5| 5| 6| 9| 7| 4| 7| 7| 5| 6| 7| 0| 6|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE FEMALE                      | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8|  |     A      |
     175 PPM                               | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
      Hepatocholangiocarcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Histiocytic Sarcoma                  |                                                                          |          3 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
      Mediastinum, Hepatocellular          |                                                                          |            |
          Carcinoma, Metastatic, Liver     |                                                                          |          1 |
      Mediastinum, Lymphoma Malignant      |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |             +                                                            |   1        |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                        +                                 |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  M  +  M  +  +  +  +  +  M  +  +  +  +  M  +   |  52        |
      Adenoma                              |                                                                          |          2 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                                                                          |          4 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          4 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  97        |
      Histiocytic Sarcoma                  |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                          X               |          2 |
      Lymphoma Malignant Mixed             |    X                                                                     |          3 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |                   X                                                      |          5 |
      Lymphoma Malignant Lymphocytic       |                            X                             X               |          5 |
      Lymphoma Malignant Mixed             |    X                                                                     |          8 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                         X                                                |          6 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  81                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 4| 6| 1| 7| 7| 7| 7| 7| 7| 6| 7| 7| 4| 7| 7| 7| 7| 1| 6| 7| 6| 7| 1| 7|             
                             DAY ON TEST   | 5| 9| 4| 6| 3| 3| 3| 2| 3| 3| 4| 3| 3| 5| 3| 3| 3| 3| 6| 6| 3| 2| 2| 6| 3|             
                                           | 8| 6| 5| 5| 0| 0| 0| 9| 0| 0| 1| 0| 0| 9| 0| 1| 1| 1| 5| 2| 1| 6| 1| 5| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Mixed                            |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Hemangiosarcoma, Multiple            |                                                                          |             
      Hepatocellular Carcinoma             |       X        X                 X                       X               |             
      Hepatocellular Carcinoma, Multiple   |                                                                   X      |             
      Hepatocellular Adenoma               |             X     X              X                                X      |             
      Hepatocellular Adenoma, Multiple     | X              X        X  X        X     X  X              X            |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Mesentery                               |    +                       +                                   +         |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  82                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 4| 6| 1| 7| 7| 7| 7| 7| 7| 6| 7| 7| 4| 7| 7| 7| 7| 1| 6| 7| 6| 7| 1| 7|             
                             DAY ON TEST   | 5| 9| 4| 6| 3| 3| 3| 2| 3| 3| 4| 3| 3| 5| 3| 3| 3| 3| 6| 6| 3| 2| 2| 6| 3|             
                                           | 8| 6| 5| 5| 0| 0| 0| 9| 0| 0| 1| 0| 0| 9| 0| 1| 1| 1| 5| 2| 1| 6| 1| 5| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Hemangiosarcoma, Metastatic, Skin    |    X                                                                     |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
      Bilateral, Capsule, Spindle Cell,    |                                                                          |             
           Adenoma                         |                                                    X                     |             
      Capsule, Spindle Cell, Adenoma       |             X                       X                                    |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +     +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  I  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Adenoma                      |                                                                          |             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Penis                                   |                                                                          |             
                                            __________________________________________________________________________|             
   Preputial Gland                         |       +        +     +  +  +  +  +  +  +  +  +  +  +     +  +  +        +|             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                                                          +               |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |             
           Skin                            |    X                                                                     |             
      Humerus, Hemangiosarcoma, Metastatic,|                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  83                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 4| 6| 1| 7| 7| 7| 7| 7| 7| 6| 7| 7| 4| 7| 7| 7| 7| 1| 6| 7| 6| 7| 1| 7|             
                             DAY ON TEST   | 5| 9| 4| 6| 3| 3| 3| 2| 3| 3| 4| 3| 3| 5| 3| 3| 3| 3| 6| 6| 3| 2| 2| 6| 3|             
                                           | 8| 6| 5| 5| 0| 0| 0| 9| 0| 0| 1| 0| 0| 9| 0| 1| 1| 1| 5| 2| 1| 6| 1| 5| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
           Skin                            |    X                                                                     |             
      Tibia, Hemangiosarcoma, Metastatic,  |                                                                          |             
           Skin                            |    X                                                                     |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Inguinal, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                            X                                             |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  M  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Skin    |    X                                                                     |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  M  M  M  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | M  M  M  M  M  M  +  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Subcutaneous Tissue, Hemangiosarcoma |    X                                                                     |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |          +                                            +              +   |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  84                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 4| 6| 1| 7| 7| 7| 7| 7| 7| 6| 7| 7| 4| 7| 7| 7| 7| 1| 6| 7| 6| 7| 1| 7|             
                             DAY ON TEST   | 5| 9| 4| 6| 3| 3| 3| 2| 3| 3| 4| 3| 3| 5| 3| 3| 3| 3| 6| 6| 3| 2| 2| 6| 3|             
                                           | 8| 6| 5| 5| 0| 0| 0| 9| 0| 0| 1| 0| 0| 9| 0| 1| 1| 1| 5| 2| 1| 6| 1| 5| 1|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
     0 PPM                                 | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |                   X     X                       X                        |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |                            X                                             |             
      Alveolar/Bronchiolar Carcinoma       |             X  X                    X                          X        X|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                X                                               X         |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |       X                                                           X      |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                         +|             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  M  +  +  M  M  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                     X                             X     X|             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                            X                                             |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  85                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 1| 7| 7| 6| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 3| 5| 2| 2| 3| 9| 3| 3| 3| 3| 3| 2| 2| 2| 7| 2| 6| 3| 3| 8| 3| 3| 3| 2| 6|             
                                           | 1| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 9| 0| 9| 1| 1| 5| 2| 2| 4| 2| 2| 3| 9| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  M  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Mixed                            |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                             X           X|             
      Hemangiosarcoma, Multiple            |                                                                          |             
      Hepatocellular Carcinoma             |       X                 X                 X              X               |             
      Hepatocellular Carcinoma, Multiple   |                                     X  X                                 |             
      Hepatocellular Adenoma               | X     X                                                        X         |             
      Hepatocellular Adenoma, Multiple     |             X              X  X  X                 X  X  X        X  X  X|             
      Lymphoma Malignant Lymphocytic       |                X                             X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |    +                                         +                           |             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                     +  +                                 |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  86                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 1| 7| 7| 6| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 3| 5| 2| 2| 3| 9| 3| 3| 3| 3| 3| 2| 2| 2| 7| 2| 6| 3| 3| 8| 3| 3| 3| 2| 6|             
                                           | 1| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 9| 0| 9| 1| 1| 5| 2| 2| 4| 2| 2| 3| 9| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
      Bilateral, Capsule, Spindle Cell,    |                                                                          |             
           Adenoma                         |                                                                          |             
      Capsule, Spindle Cell, Adenoma       |                                                                   X     X|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  M  +  +  +  M  +  M  +  +  +  +  +  +  +  +  M  +  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  I  M  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Adenoma                      |                                                          X               |             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Penis                                   |                                                                          |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +     +  +  +  +  +  +        +        +     +     +  +  +  +  +  +  +   |             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                                              +                           |             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |             
           Skin                            |                                                                          |             
      Humerus, Hemangiosarcoma, Metastatic,|                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  87                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 1| 7| 7| 6| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 3| 5| 2| 2| 3| 9| 3| 3| 3| 3| 3| 2| 2| 2| 7| 2| 6| 3| 3| 8| 3| 3| 3| 2| 6|             
                                           | 1| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 9| 0| 9| 1| 1| 5| 2| 2| 4| 2| 2| 3| 9| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
           Skin                            |                                                                          |             
      Tibia, Hemangiosarcoma, Metastatic,  |                                                                          |             
           Skin                            |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Inguinal, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                X                                                         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +|             
      Lymphoma Malignant Lymphocytic       |                X                             X                           |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                X                             X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                X                             X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | M  M  +  M  M  M  +  M  M  +  M  M  M  M  M  M  +  M  M  M  M  M  M  M  M|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                              +  +                        |             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  88                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 4| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 1| 7| 7| 6| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 3| 5| 2| 2| 3| 9| 3| 3| 3| 3| 3| 2| 2| 2| 7| 2| 6| 3| 3| 8| 3| 3| 3| 2| 6|             
                                           | 1| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 9| 0| 9| 1| 1| 5| 2| 2| 4| 2| 2| 3| 9| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|             
     0 PPM                                 | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |    X                       X                                             |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |                                                                          |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                          X               |             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | M  +  +  +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  +  M  +  M  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                              X                           |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                              X                           |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                X                             X                           |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  89                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 1| 7| 6| 7| 4| 7| 1| 7| 7| 7| 7| 7| 1| 4| 5| 6| 7| 7| 7| 7| 4| 7| 6|             
                             DAY ON TEST   | 3| 3| 6| 3| 9| 3| 5| 3| 6| 0| 2| 3| 3| 3| 6| 2| 7| 9| 3| 3| 3| 3| 5| 3| 9|             
                                           | 3| 3| 6| 3| 1| 3| 8| 3| 6| 4| 9| 3| 3| 6| 5| 0| 8| 8| 6| 6| 6| 6| 8| 6| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7|             
     0 PPM                                 | 1| 2| 3| 4| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Mixed                            |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Hemangiosarcoma, Multiple            |                                                                          |             
      Hepatocellular Carcinoma             |    X           X                       X                    X        X  X|             
      Hepatocellular Carcinoma, Multiple   |             X                                         X  X               |             
      Hepatocellular Adenoma               |                X                 X                             X         |             
      Hepatocellular Adenoma, Multiple     | X  X     X        X  X     X  X     X  X     X  X     X     X        X  X|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |                   +                                         +            |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +     +  +  +  +  +     +  +  +  +  +     +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  90                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 1| 7| 6| 7| 4| 7| 1| 7| 7| 7| 7| 7| 1| 4| 5| 6| 7| 7| 7| 7| 4| 7| 6|             
                             DAY ON TEST   | 3| 3| 6| 3| 9| 3| 5| 3| 6| 0| 2| 3| 3| 3| 6| 2| 7| 9| 3| 3| 3| 3| 5| 3| 9|             
                                           | 3| 3| 6| 3| 1| 3| 8| 3| 6| 4| 9| 3| 3| 6| 5| 0| 8| 8| 6| 6| 6| 6| 8| 6| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7|             
     0 PPM                                 | 1| 2| 3| 4| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
      Bilateral, Capsule, Spindle Cell,    |                                                                          |             
           Adenoma                         |                               X                                          |             
      Capsule, Spindle Cell, Adenoma       |                X                                               X         |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Adenoma                      |                                                                          |             
      Follicular Cell, Adenoma             |                                                       X                  |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Penis                                   |                                                                          |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +           +  +           +     +  +  +              +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood                                   |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |             
           Skin                            |                                                                          |             
      Humerus, Hemangiosarcoma, Metastatic,|                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  91                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 1| 7| 6| 7| 4| 7| 1| 7| 7| 7| 7| 7| 1| 4| 5| 6| 7| 7| 7| 7| 4| 7| 6|             
                             DAY ON TEST   | 3| 3| 6| 3| 9| 3| 5| 3| 6| 0| 2| 3| 3| 3| 6| 2| 7| 9| 3| 3| 3| 3| 5| 3| 9|             
                                           | 3| 3| 6| 3| 1| 3| 8| 3| 6| 4| 9| 3| 3| 6| 5| 0| 8| 8| 6| 6| 6| 6| 8| 6| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7|             
     0 PPM                                 | 1| 2| 3| 4| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
           Skin                            |                                                                          |             
      Tibia, Hemangiosarcoma, Metastatic,  |                                                                          |             
           Skin                            |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inguinal, Lymphoma Malignant Mixed   |                                                                          |             
      Inguinal, Lymphoma Malignant         |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Mediastinal, Lymphoma Malignant      |                                                                          |             
          Lymphocytic                      |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  M|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  M|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  +  M  +  M  +  M  +  M|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +     +  +  +  +  +     +  +  +  +  +     +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |       +                 +                 +                              |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  92                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 1| 7| 6| 7| 4| 7| 1| 7| 7| 7| 7| 7| 1| 4| 5| 6| 7| 7| 7| 7| 4| 7| 6|             
                             DAY ON TEST   | 3| 3| 6| 3| 9| 3| 5| 3| 6| 0| 2| 3| 3| 3| 6| 2| 7| 9| 3| 3| 3| 3| 5| 3| 9|             
                                           | 3| 3| 6| 3| 1| 3| 8| 3| 6| 4| 9| 3| 3| 6| 5| 0| 8| 8| 6| 6| 6| 6| 8| 6| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7|             
     0 PPM                                 | 1| 2| 3| 4| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |                      X                                   X               |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |                                                                      X   |             
      Alveolar/Bronchiolar Carcinoma       |          X                       X  X  X        X           X            |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |    X        X                                                           X|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                      +                                                   |             
                                            __________________________________________________________________________|             
   Eye                                     |                                           +        +                     |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  M  +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  M|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                                    X                     |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  93                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 1| 7| 7| 7| 7| 7| 6| 4| 4| 7| 7| 4| 7| 7| 7| 1| 7| 4| 7| 7| 1| 4|  |            |
                             DAY ON TEST   | 3| 3| 6| 3| 1| 2| 3| 2| 2| 5| 5| 2| 3| 5| 3| 3| 0| 6| 3| 5| 3| 3| 6| 5|  |            |
                                           | 6| 6| 6| 7| 5| 9| 7| 9| 5| 9| 8| 9| 7| 9| 7| 7| 1| 6| 0| 8| 7| 7| 5| 8|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|  |     T      |
                               ANIMAL ID   | 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|  |     A      |
     0 PPM                                 | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +   |  96        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |            |
          Mixed                            |                                                             X            |          1 |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Hemangiosarcoma                      |                                                                      X   |          3 |
      Hemangiosarcoma, Multiple            |                               X                                          |          1 |
      Hepatocellular Carcinoma             |    X        X                       X           X           X            |         19 |
      Hepatocellular Carcinoma, Multiple   |                                                                          |          6 |
      Hepatocellular Adenoma               |    X     X     X              X                          X     X         |         16 |
      Hepatocellular Adenoma, Multiple     | X                    X           X        X  X                           |         38 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |          +     +                          +                              |  10        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Tooth                                   | +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +     +   |  90        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  94                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 1| 7| 7| 7| 7| 7| 6| 4| 4| 7| 7| 4| 7| 7| 7| 1| 7| 4| 7| 7| 1| 4|  |            |
                             DAY ON TEST   | 3| 3| 6| 3| 1| 2| 3| 2| 2| 5| 5| 2| 3| 5| 3| 3| 0| 6| 3| 5| 3| 3| 6| 5|  |            |
                                           | 6| 6| 6| 7| 5| 9| 7| 9| 5| 9| 8| 9| 7| 9| 7| 7| 1| 6| 0| 8| 7| 7| 5| 8|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|  |     T      |
                               ANIMAL ID   | 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|  |     A      |
     0 PPM                                 | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            |                                           +                              |   3        |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Hemangiosarcoma, Metastatic, Liver   |                               X                                          |          1 |
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Adenoma                              |                                  X                                       |          1 |
      Bilateral, Capsule, Spindle Cell,    |                                                                          |            |
           Adenoma                         |                                                                          |          2 |
      Capsule, Spindle Cell, Adenoma       |                                                                          |          6 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  96        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +   |  88        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  91        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      C-Cell, Adenoma                      |                                                                          |          1 |
      Follicular Cell, Adenoma             |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Penis                                   |                                                             +            |   1        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         |             +  +     +           +  +     +  +  +              +         |  57        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  95                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 1| 7| 7| 7| 7| 7| 6| 4| 4| 7| 7| 4| 7| 7| 7| 1| 7| 4| 7| 7| 1| 4|  |            |
                             DAY ON TEST   | 3| 3| 6| 3| 1| 2| 3| 2| 2| 5| 5| 2| 3| 5| 3| 3| 0| 6| 3| 5| 3| 3| 6| 5|  |            |
                                           | 6| 6| 6| 7| 5| 9| 7| 9| 5| 9| 8| 9| 7| 9| 7| 7| 1| 6| 0| 8| 7| 7| 5| 8|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|  |     T      |
                               ANIMAL ID   | 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|  |     A      |
     0 PPM                                 | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood                                   |                                                                          |   2        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |            |
           Skin                            |                                                                          |          1 |
      Humerus, Hemangiosarcoma, Metastatic,|                                                                          |            |
           Skin                            |                                                                          |          1 |
      Tibia, Hemangiosarcoma, Metastatic,  |                                                                          |            |
           Skin                            |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Inguinal, Lymphoma Malignant Mixed   |                                                             X            |          1 |
      Inguinal, Lymphoma Malignant         |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Mediastinal, Lymphoma Malignant      |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  94        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                             X            |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Hemangiosarcoma, Metastatic, Skin    |                                                                          |          1 |
      Histiocytic Sarcoma                  |    X                                                                     |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +   |  87        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  96                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 1| 7| 7| 7| 7| 7| 6| 4| 4| 7| 7| 4| 7| 7| 7| 1| 7| 4| 7| 7| 1| 4|  |            |
                             DAY ON TEST   | 3| 3| 6| 3| 1| 2| 3| 2| 2| 5| 5| 2| 3| 5| 3| 3| 0| 6| 3| 5| 3| 3| 6| 5|  |            |
                                           | 6| 6| 6| 7| 5| 9| 7| 9| 5| 9| 8| 9| 7| 9| 7| 7| 1| 6| 0| 8| 7| 7| 5| 8|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|  |     T      |
                               ANIMAL ID   | 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|  |     A      |
     0 PPM                                 | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 INTEGUMENTARY SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  M  M  M  M  +  +  M  M  +  M  M  M  +  M  M  M  M  M  M  M  M  M  M   |  14        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +     +   |  89        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |       +                                            +              +      |  11        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Alveolar/Bronchiolar Adenoma         |                                  X  X                          X         |         10 |
      Alveolar/Bronchiolar Adenoma,        |                                                                          |            |
          Multiple                         |                                                                          |          2 |
      Alveolar/Bronchiolar Carcinoma       | X                                                                        |         12 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          2 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |    X                                            X                        |          8 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                  +  +                                    |   5        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  85        |
      Adenocarcinoma                       |                                  X                                       |          1 |
      Adenoma                              |                      X              X                                    |          7 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  97                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 1| 7| 7| 7| 7| 7| 6| 4| 4| 7| 7| 4| 7| 7| 7| 1| 7| 4| 7| 7| 1| 4|  |            |
                             DAY ON TEST   | 3| 3| 6| 3| 1| 2| 3| 2| 2| 5| 5| 2| 3| 5| 3| 3| 0| 6| 3| 5| 3| 3| 6| 5|  |            |
                                           | 6| 6| 6| 7| 5| 9| 7| 9| 5| 9| 8| 9| 7| 9| 7| 7| 1| 6| 0| 8| 7| 7| 5| 8|  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|  |     O      |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|  |     T      |
                               ANIMAL ID   | 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|  |     A      |
     0 PPM                                 | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|  |     L      |
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |            |
 __________________________________________________________________________________________________________________________________ 
 URINARY SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  98        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  99        |
      Histiocytic Sarcoma                  |    X                                                                     |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                             X            |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page  98                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 6| 7| 5| 7| 7| 7| 6| 7| 7| 7| 4| 6| 5| 6| 2| 6| 2| 5| 5| 0| 6| 7| 6|             
                             DAY ON TEST   | 3| 5| 1| 3| 4| 3| 0| 3| 8| 1| 3| 3| 2| 9| 0| 6| 7| 0| 4| 1| 9| 1| 5| 3| 8|             
                                           | 0| 1| 9| 0| 0| 0| 6| 1| 4| 3| 1| 1| 0| 8| 5| 0| 3| 9| 1| 9| 9| 7| 7| 2| 7|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Gallbladder                             |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |    +  +     +     +     +  +        +  +  M  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |             
          Lymphocytic                      |                                                                   X      |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Liver                                   |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Hemangiosarcoma                      |                                                                          |             
      Hemangiosarcoma, Multiple,           |                                                                          |             
          Metastatic, Liver                |                                                                          |             
      Hepatocellular Carcinoma             |       X           X                                X     X        X      |             
      Hepatocellular Adenoma               |    X        X           X              X  X  X     X                     |             
      Hepatocellular Adenoma, Multiple     |       X                                                     X           X|             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |                                                          +               |             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Salivary Glands                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach                                 |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Squamous Cell Papilloma              |                                                    X                     |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Tooth                                   |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Bilateral, Capsule, Spindle Cell,    |                                                                          |             
           Adenoma                         |                            X                                             |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |    +  M     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Follicular Cell, Adenoma             |                         X                                                |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  99                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 6| 7| 5| 7| 7| 7| 6| 7| 7| 7| 4| 6| 5| 6| 2| 6| 2| 5| 5| 0| 6| 7| 6|             
                             DAY ON TEST   | 3| 5| 1| 3| 4| 3| 0| 3| 8| 1| 3| 3| 2| 9| 0| 6| 7| 0| 4| 1| 9| 1| 5| 3| 8|             
                                           | 0| 1| 9| 0| 0| 0| 6| 1| 4| 3| 1| 1| 0| 8| 5| 0| 3| 9| 1| 9| 9| 7| 7| 2| 7|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Preputial Gland                         |    +  +           +     +  +           +           +     +  +           +|             
                                            __________________________________________________________________________|             
   Prostate                                |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Testes                                  |       +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |             
           Skin                            |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |    +  +     +     M     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |                                                                   X      |             
                                            __________________________________________________________________________|             
   Spleen                                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  |    +  M     +     M     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |    +  M     M     +     M  M        M  M  +  M  M  M  M  M  +  M  +     +|             
                                            __________________________________________________________________________|             
   Skin                                    |    +  +     +     +     +  +        +  +  +  +  +  +  +  M  +  +  +     +|             
      Subcutaneous Tissue, Fibrosarcoma    |                                                                          |             
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |    +                                                                     |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Alveolar/Bronchiolar Adenoma         |    X                                                                     |             
      Alveolar/Bronchiolar Carcinoma       |                         X  X                                             |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                            X                                             |             
      Fibrosarcoma, Metastatic, Skin       |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                    X     X               |             
      Histiocytic Sarcoma                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page 100                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 6| 7| 5| 7| 7| 7| 6| 7| 7| 7| 4| 6| 5| 6| 2| 6| 2| 5| 5| 0| 6| 7| 6|             
                             DAY ON TEST   | 3| 5| 1| 3| 4| 3| 0| 3| 8| 1| 3| 3| 2| 9| 0| 6| 7| 0| 4| 1| 9| 1| 5| 3| 8|             
                                           | 0| 1| 9| 0| 0| 0| 6| 1| 4| 3| 1| 1| 0| 8| 5| 0| 3| 9| 1| 9| 9| 7| 7| 2| 7|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
    SPECIAL                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Trachea                                 |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                             +            |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |    +  +     +     +     +  M        +  +  +  M  +  +  +  +  +  +  M     +|             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |    +  +     +     +     +  +        +  +  +  +  +  +  +  +  +  +  +     +|             
      Histiocytic Sarcoma                  |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                   X      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page 101                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 5| 4| 5| 3| 5| 7| 7| 6| 4| 7| 2| 7| 3| 4| 7| 7| 7| 7| 7| 5| 5| 5|            |
                             DAY ON TEST   | 3| 3| 3| 6| 3| 6| 8| 2| 3| 3| 2| 8| 3| 0| 3| 5| 2| 3| 3| 3| 3| 3| 7| 9| 2|            |
                                           | 2| 2| 0| 4| 3| 8| 6| 3| 3| 3| 3| 8| 3| 8| 6| 9| 0| 6| 6| 7| 7| 7| 9| 3| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|     T      |
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  31        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Lymphoid Tissue, Lymphoma Malignant  |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Liver                                   |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Hemangiosarcoma                      |       X                                                                  |          1 |
      Hemangiosarcoma, Multiple,           |                                                                          |            |
          Metastatic, Liver                |       X                                                                  |          1 |
      Hepatocellular Carcinoma             |                                                                   X  X   |          7 |
      Hepatocellular Adenoma               |                X                                                         |          8 |
      Hepatocellular Adenoma, Multiple     |                               X  X                                X  X   |          7 |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |                                              +                           |   2        |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Stomach                                 |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Squamous Cell Papilloma              |                      X                                                   |          2 |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Tooth                                   |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Bilateral, Capsule, Spindle Cell,    |                                                                          |            |
           Adenoma                         |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page 102                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 5| 4| 5| 3| 5| 7| 7| 6| 4| 7| 2| 7| 3| 4| 7| 7| 7| 7| 7| 5| 5| 5|            |
                             DAY ON TEST   | 3| 3| 3| 6| 3| 6| 8| 2| 3| 3| 2| 8| 3| 0| 3| 5| 2| 3| 3| 3| 3| 3| 7| 9| 2|            |
                                           | 2| 2| 0| 4| 3| 8| 6| 3| 3| 3| 3| 8| 3| 8| 6| 9| 0| 6| 6| 7| 7| 7| 9| 3| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|     T      |
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       |       +  +  +  M  +  +        +  +     +     +  +                 +  +  +|  30        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Follicular Cell, Adenoma             |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         |             +                                                        +   |  12        |
                                            __________________________________________________________________________|____________|
   Prostate                                |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Testes                                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  31        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Femoral, Hemangiosarcoma, Metastatic,|                                                                          |            |
           Skin                            |          X                                                               |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  31        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  |       +  +  +  +  +  +        +  +     +     M  +                 +  +  +|  31        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
                                            __________________________________________________________________________|____________|
   Thymus                                  |       +  +  M  +  +  +        M  +     +     +  +                 +  +  +|  28        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           |       M  M  M  M  M  M        M  M     +     M  M                 M  M  M|   7        |
                                            __________________________________________________________________________|____________|
   Skin                                    |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  31        |
      Subcutaneous Tissue, Fibrosarcoma    |                      X                                                   |          1 |
      Subcutaneous Tissue, Hemangiosarcoma |          X                                                               |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page 103                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 5| 4| 5| 3| 5| 7| 7| 6| 4| 7| 2| 7| 3| 4| 7| 7| 7| 7| 7| 5| 5| 5|            |
                             DAY ON TEST   | 3| 3| 3| 6| 3| 6| 8| 2| 3| 3| 2| 8| 3| 0| 3| 5| 2| 3| 3| 3| 3| 3| 7| 9| 2|            |
                                           | 2| 2| 0| 4| 3| 8| 6| 3| 3| 3| 3| 8| 3| 8| 6| 9| 0| 6| 6| 7| 7| 7| 9| 3| 7|            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|     O      |
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|     T      |
                               ANIMAL ID   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|     A      |
    SPECIAL                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|     L      |
    CONTROL                                | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|            |
 __________________________________________________________________________________________________________________________________ 
 NERVOUS SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          1 |
      Alveolar/Bronchiolar Carcinoma       |             X                                                     X      |          4 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          1 |
      Fibrosarcoma, Metastatic, Skin       |                      X                                                   |          1 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          2 |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
                                            __________________________________________________________________________|____________|
   Trachea                                 |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |       +  +  +  +  M  +        +  M     +     +  +                 +  +  +|  27        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |       +  +  +  +  +  +        +  +     +     +  +                 +  +  +|  32        |
      Histiocytic Sarcoma                  |                                              X                           |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page 104                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 4| 7| 1| 2| 7| 4| 7| 7| 7| 7| 7| 7| 7| 7| 1| 1| 4| 4| 7| 7| 7| 7|             
                             DAY ON TEST   | 5| 3| 3| 5| 3| 6| 0| 3| 5| 3| 3| 3| 3| 2| 0| 2| 3| 6| 6| 5| 5| 3| 3| 2| 3|             
                                           | 9| 0| 0| 9| 0| 6| 8| 0| 8| 0| 1| 1| 1| 9| 9| 9| 1| 6| 5| 8| 8| 1| 2| 9| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  M     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Adenocarcinoma                       |    X                                                                     |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
      Hemangiosarcoma, Multiple            |                                                                          |             
      Hemangiosarcoma, Metastatic, Heart   |                                                                          |             
      Hepatoblastoma                       |                                                                          |             
      Hepatocellular Carcinoma             |       X              X        X           X  X                          X|             
      Hepatocellular Carcinoma, Multiple   |                            X                                             |             
      Hepatocellular Adenoma               | X     X  X                       X  X  X        X                    X   |             
      Hepatocellular Adenoma, Multiple     |             X        X     X                 X           X        X      |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +                                                               |             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
      Hemangioma                           |    X                                                                     |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Adenoma                              |                                                                          |             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Incisor, Odontoma                    |                                  X                                       |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Bilateral, Capsule, Spindle Cell,    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page 105                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 4| 7| 1| 2| 7| 4| 7| 7| 7| 7| 7| 7| 7| 7| 1| 1| 4| 4| 7| 7| 7| 7|             
                             DAY ON TEST   | 5| 3| 3| 5| 3| 6| 0| 3| 5| 3| 3| 3| 3| 2| 0| 2| 3| 6| 6| 5| 5| 3| 3| 2| 3|             
                                           | 9| 0| 0| 9| 0| 6| 8| 0| 8| 0| 1| 1| 1| 9| 9| 9| 1| 6| 5| 8| 8| 1| 2| 9| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
           Adenoma                         |                                                                          |             
      Capsule, Spindle Cell, Adenoma       |                                                 X                        |             
      Capsule, Spindle Cell, Adenoma,      |                                                                          |             
          Multiple                         |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Pheochromocytoma Malignant           |                                                                          |             
      Pheochromocytoma Benign              |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  M  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +  +  +     +        +           +  +  +  +     +           +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Fibrosarcoma                         |                                                                          |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Interstitial Cell, Adenoma           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Femoral, Hemangiosarcoma             |                                                                          |             
      Humerus, Hemangiosarcoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Mediastinal, Alveolar/Bronchiolar    |                                                                          |             
          Carcinoma, Metastatic, Lung      |                                                                          |             
      Mediastinal, Fibrosarcoma,           |                                                                          |             
          Metastatic, Prostate             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page 106                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 4| 7| 1| 2| 7| 4| 7| 7| 7| 7| 7| 7| 7| 7| 1| 1| 4| 4| 7| 7| 7| 7|             
                             DAY ON TEST   | 5| 3| 3| 5| 3| 6| 0| 3| 5| 3| 3| 3| 3| 2| 0| 2| 3| 6| 6| 5| 5| 3| 3| 2| 3|             
                                           | 9| 0| 0| 9| 0| 6| 8| 0| 8| 0| 1| 1| 1| 9| 9| 9| 1| 6| 5| 8| 8| 1| 2| 9| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | M  M  M  +  M     M  M  M  M  +  M  M  M  M  M  M        M  M  M  M  M  M|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Subcutaneous Tissue, Hemangiosarcoma |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Femur, Osteosarcoma                  |                                                                          |             
      Humerus, Hemangiosarcoma             |                                                                          |             
      Maxilla, Adenocarcinoma, Metastatic, |                                                                          |             
           Harderian Gland                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
      Alveolar/Bronchiolar Adenoma         |                                              X                           |             
      Alveolar/Bronchiolar Carcinoma       |                            X        X  X                             X   |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Multiple                         |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                      X                                                  X|             
      Lipoma                               |                                                                          |             
      Mediastinum, Fibrosarcoma,           |                                                                          |             
          Metastatic, Prostate             |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic,          |                                                                          |             
          Harderian Gland                  |                                                                          |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +     +  +  +  +  +  +  +  M  M  +  +        +  M  +  +  M  +|             
      Adenocarcinoma                       |                                                                          |             
      Adenoma                              |                                                                         X|             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Ureter                                  |                                                                          |             
      Transitional Epithelium, Carcinoma   |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page 107                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 4| 7| 1| 2| 7| 4| 7| 7| 7| 7| 7| 7| 7| 7| 1| 1| 4| 4| 7| 7| 7| 7|             
                             DAY ON TEST   | 5| 3| 3| 5| 3| 6| 0| 3| 5| 3| 3| 3| 3| 2| 0| 2| 3| 6| 6| 5| 5| 3| 3| 2| 3|             
                                           | 9| 0| 0| 9| 0| 6| 8| 0| 8| 0| 1| 1| 1| 9| 9| 9| 1| 6| 5| 8| 8| 1| 2| 9| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
                               ANIMAL ID   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
     25 PPM                                | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +        +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page 108                                                               
NTP Experiment-Test: 05131-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                          SODIUM FLUORIDE                                      Date: 04/15/97  
Route: DOSED WATER                                                                                                Time: 08:31:49  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 1| 1| 7| 6| 4| 4| 7| 1| 7| 7| 1| 7| 6| 7| 7| 7| 6| 7| 7| 1| 4|             
                             DAY ON TEST   | 2| 3| 0| 2| 6| 6| 2| 2| 5| 5| 3| 6| 2| 3| 6| 2| 2| 2| 3| 3| 5| 3| 2| 6| 5|             
                                           | 9| 2| 7| 9| 5| 6| 8| 9| 8| 9| 2| 6| 9| 3| 5| 9| 4| 9| 3| 3| 7| 3| 9| 5| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|             
                               ANIMAL ID   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|             
     25 PPM                                | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|             
                                           | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  M        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
      Adenocarcinoma                       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                    X                     |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
      Hemangiosarcoma, Multiple            |          X                                                               |             
      Hemangiosarcoma, Metastatic, Heart   |                                                                          |             
      Hepatoblastoma                       |                                                                          |             
      Hepatocellular Carcinoma             |    X                                            X        X               |             
      Hepatocellular Carcinoma, Multiple   |                   X  X                                                   |             
      Hepatocellular Adenoma               |                   X                          X        X        X         |             
      Hepatocellular Adenoma, Multiple     |       X              X  X     X     X           X  X                     |             
                                            __________________________________________________________________________|             
   Mesentery                               |                               +                                          |             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
      Hemangioma                           |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +        +  +  +  +  +     +  +     +  +  +  +  +  +  +  +     +|             
      Adenoma                              |                                        X                                 |             
      Fibrosarcoma, Metastatic, Prostate   |                                                                          |             
                                            __________________________________________________________________________|             
   Tooth                                   | +  +  +