Skip to Main Navigation
Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Share This:
https://ntp.niehs.nih.gov/go/2489

TDMS Study 05079-02 Pathology Tables

NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04




       Facility:  Lovelace Inhalation Toxicology Research Institute

       Chemical CAS #:  14807966

       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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 5| 7| 5| 7| 7| 7| 7| 5| 7| 6| 7| 6| 7|             
                             DAY ON TEST   | 8| 2| 2| 0| 2| 2| 2| 2| 3| 3| 4| 6| 0| 3| 0| 3| 3| 3| 3| 9| 3| 9| 3| 4| 3|             
                                           | 7| 9| 9| 9| 9| 9| 9| 9| 3| 0| 4| 9| 5| 0| 6| 0| 0| 0| 0| 0| 0| 2| 1| 1| 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                      | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 9| 0| 1| 1| 1| 1| 1| 2| 4| 4| 4| 4| 4| 4| 4| 5| 6| 7|             
    CONTOL                                 | 6| 7| 1| 2| 4| 6| 9| 0| 9| 1| 5| 6| 7| 8| 0| 0| 1| 2| 3| 4| 5| 6| 0| 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                               | +  +  +  M  +  +  +  +  +  +  +     +  +  M  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Gallbladder                             | M  +  +  A  +  +  +  +  +  +  +     A  +  M  +  +  +  I     +  A  +     +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large                         | A  +  +  +  +  +  +  +  +  +  +     A  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | A  +  +  A  +  +  +  +  +  +  A     A  +  A  +  +  +  +     +  A  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | A  +  M  +  +  +  +  +  +  +  +     A  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | M  +  +  +  +  +  M  +  +  +  +     M  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | A  +  +  A  +  +  +  +  +  +  +     A  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | A  +  +  A  +  +  M  +  M  M  A     A  M  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | A  +  +  A  +  +  +  +  +  +  A     A  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                                 |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | A  +  +  A  +  +  +  +  +  +  +     A  +  A  +  +  +  +     +  A  +     +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Hepatocellular Carcinoma             |                   X  X                    X                              |             
      Hepatocellular Adenoma               |                   X                                X        X            |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Mesentery                               |          +                                                               |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +     A  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Hemangioma                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page   2                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 5| 7| 5| 7| 7| 7| 7| 5| 7| 6| 7| 6| 7|             
                             DAY ON TEST   | 8| 2| 2| 0| 2| 2| 2| 2| 3| 3| 4| 6| 0| 3| 0| 3| 3| 3| 3| 9| 3| 9| 3| 4| 3|             
                                           | 7| 9| 9| 9| 9| 9| 9| 9| 3| 0| 4| 9| 5| 0| 6| 0| 0| 0| 0| 0| 0| 2| 1| 1| 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                      | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 9| 0| 1| 1| 1| 1| 1| 2| 4| 4| 4| 4| 4| 4| 4| 5| 6| 7|             
    CONTOL                                 | 6| 7| 1| 2| 4| 6| 9| 0| 9| 1| 5| 6| 7| 8| 0| 0| 1| 2| 3| 4| 5| 6| 0| 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                   |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
      Spindle Cell, Adenoma                |                         X                                                |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Adenoma                              |                      X                                                   |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  M  +  +  +  +  +  +  +     M  +  +  +  +  +  +     +  +  +     +|             
      Pheochromocytoma Malignant           |                                                                          |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  M  +  +  +  +  +  +  +     A  M  A  +  I  +  I     +  +  I     I|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | M  M  M  M  I  M  +  +  +  +  +     +  +  +  M  +  +  M     +  +  I     +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +     M  +  M  +  +  +  +     +  +  +     +|             
      Adenoma                              |                   X                                            X         |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  M  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                                                                   +      |             
      Fibrosarcoma                         |                                                                   X      |             
      Hemangioma                           |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  I  +  I     +  +  +  M  +  +  +     M  +  +     +|             
      Adenocarcinoma, Metastatic, Uterus   |                                                       X                  |             
      Adenoma                              |                                                                          |             
      Luteoma                              |                                                    X                     |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                                 |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Adenocarcinoma                       |                                                       X                  |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  A     A  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Axillary, Lymphoma Malignant Mixed   |                                                                          |             
      Iliac, Lymphoma Malignant Mixed      |                                                                          |             
      Iliac, Lymphoma Malignant            |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   3                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 5| 7| 5| 7| 7| 7| 7| 5| 7| 6| 7| 6| 7|             
                             DAY ON TEST   | 8| 2| 2| 0| 2| 2| 2| 2| 3| 3| 4| 6| 0| 3| 0| 3| 3| 3| 3| 9| 3| 9| 3| 4| 3|             
                                           | 7| 9| 9| 9| 9| 9| 9| 9| 3| 0| 4| 9| 5| 0| 6| 0| 0| 0| 0| 0| 0| 2| 1| 1| 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                      | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 9| 0| 1| 1| 1| 1| 1| 2| 4| 4| 4| 4| 4| 4| 4| 5| 6| 7|             
    CONTOL                                 | 6| 7| 1| 2| 4| 6| 9| 0| 9| 1| 5| 6| 7| 8| 0| 0| 1| 2| 3| 4| 5| 6| 0| 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               |                                                                          |             
                                           |                                                                          |             
          Undifferentiated Cell Type       |                                        X                                 |             
      Pancreatic, Lymphoma Malignant Mixed |                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | +  +  +  +  +  +  +  M  I  +  M     +  +  M  +  +  +  +     +  +  +     I|             
      Adenocarcinoma, Metastatic, Uterus   |                                                       X                  |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  M  M  +  +  M  +  +     +  +  +  +  M  M  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | M  M  M  +  +  M  +  M  +  M  M     M  M  M  M  M  +  M     M  +  M     M|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                X         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | M  +  M  +  +  +  +  M  +  +  M     M  +  M  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +     +  +  M  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                                 |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  I     +  +  A  +  +  I  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   4                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 7| 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 5| 7| 5| 7| 7| 7| 7| 5| 7| 6| 7| 6| 7|             
                             DAY ON TEST   | 8| 2| 2| 0| 2| 2| 2| 2| 3| 3| 4| 6| 0| 3| 0| 3| 3| 3| 3| 9| 3| 9| 3| 4| 3|             
                                           | 7| 9| 9| 9| 9| 9| 9| 9| 3| 0| 4| 9| 5| 0| 6| 0| 0| 0| 0| 0| 0| 2| 1| 1| 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                      | 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 9| 0| 1| 1| 1| 1| 1| 2| 4| 4| 4| 4| 4| 4| 4| 5| 6| 7|             
    CONTOL                                 | 6| 7| 1| 2| 4| 6| 9| 0| 9| 1| 5| 6| 7| 8| 0| 0| 1| 2| 3| 4| 5| 6| 0| 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                     |                                                                          |             
                                           |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  +  +  I  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Alveolar/Bronchiolar Adenoma         |    X                                               X                     |             
      Alveolar/Bronchiolar Carcinoma       |             X                                                            |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  A  +  +  +  +  +  +  +     M  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |       +                                                                  |             
      Adenoma                              |       X                                                                  |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +     +  +  A  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +     +  +  +     +|             
      Lymphoma Malignant Lymphocytic       |          X                                                               |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                        X                       X         |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   5                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 5| 7| 7| 7| 7| 6| 4| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7| 7| 0| 4| 7| 7|            |
                             DAY ON TEST   | 3| 9| 3| 5| 3| 3| 3| 2| 8| 2| 3| 3| 3| 4| 8| 3| 4| 8| 3| 3| 3| 3| 6| 3| 3|            |
                                           | 1| 8| 1| 2| 1| 1| 3| 3| 3| 6| 2| 2| 2| 1| 6| 2| 7| 0| 2| 3| 3| 0| 5| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 7| 7| 7| 7| 7| 7| 8| 9| 9| 0| 0| 0| 0| 0| 0| 0| 2| 2| 2| 3| 3| 3| 3| 3| 3|     A      |
    CONTOL                                 | 1| 3| 4| 5| 8| 9| 0| 6| 7| 0| 1| 2| 4| 5| 7| 9| 7| 8| 9| 0| 1| 3| 4| 8| 9|     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  +  +|  43        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          1 |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  A  +  A  +  +  +  A  A  M  +  +  +  A  +  +     A  +  +  +  A  A  +  +|  31        |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  A  +  +  +  +  +  +  +  +  +  A  +  +     +  +  +  +  A  +  +  +|  40        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  A  +  +  +  +  A  +  +  +  +  A  +  +     +  +  +  +  A  A  +  +|  35        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  A  +  +  +  +  +  +  +  +  +  A  +  +     +  +  +  +  A  A  +  +|  38        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  A  M  M  +  +  M  +  +  M  +  +  +  A  +  +     M  +  +  +  A  +  +  +|  34        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  A  +  A  +  +  +  +  A  +  +  +  +  A  +  +     A  +  +  +  A  A  +  +|  35        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  A  +  A  +  +  +  A  A  +  M  M  +  A  +  +     A  +  +  +  A  A  +  +|  27        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  A  +  A  +  +  +  +  A  +  +  +  A  A  +  +     A  +  +  +  A  A  +  +|  33        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  A  M  A  +  +  +  +  A  +  +  +  +  A  +  +     A  +  +  +  A  A  +  +|  33        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Hepatocellular Carcinoma             |                            X           X  X                 X            |          7 |
      Hepatocellular Adenoma               | X                                                                    X   |          5 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |             X                                                           X|          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |             +                                                            |   2        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |             X                                                            |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     I  +  +  +  +  A  +  +|  42        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |             X                                X                          X|          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Hemangioma                           |       X                                                                  |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  45        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  45        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  45        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR 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   6                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 5| 7| 7| 7| 7| 6| 4| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7| 7| 0| 4| 7| 7|            |
                             DAY ON TEST   | 3| 9| 3| 5| 3| 3| 3| 2| 8| 2| 3| 3| 3| 4| 8| 3| 4| 8| 3| 3| 3| 3| 6| 3| 3|            |
                                           | 1| 8| 1| 2| 1| 1| 3| 3| 3| 6| 2| 2| 2| 1| 6| 2| 7| 0| 2| 3| 3| 0| 5| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 7| 7| 7| 7| 7| 7| 8| 9| 9| 0| 0| 0| 0| 0| 0| 0| 2| 2| 2| 3| 3| 3| 3| 3| 3|     A      |
    CONTOL                                 | 1| 3| 4| 5| 8| 9| 0| 6| 7| 0| 1| 2| 4| 5| 7| 9| 7| 8| 9| 0| 1| 3| 4| 8| 9|     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|            |
 __________________________________________________________________________________________________________________________________ 
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
      Spindle Cell, Adenoma                |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Adenoma                              |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |             X                                X                           |          2 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +     I  +  +  +  +  +  +  M|  41        |
      Pheochromocytoma Malignant           |       X                                                                  |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  M  I  I  I  +  I  +  I  +  +  +  +  I  M  M     M  I  +  +  +  M  M  +|  25        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | M  I  +  M  M  M  +  M  +  M  +  +  I  +  +  M     M  +  M  M  M  +  M  +|  23        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +     +  +  +  +  M  +  +  +|  42        |
      Adenoma                              |                      X  X                                               X|          5 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +     +  +  +  +  A  +  +  +|  43        |
      Follicular Cell, Adenoma             |                                                          X               |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              | +           +                                         +                  |   4        |
      Fibrosarcoma                         |                                                                          |          1 |
      Hemangioma                           |                                                       X                  |          1 |
      Lymphoma Malignant Mixed             |             X                                                            |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  M  +  +  +  +  +  +  +  M  +  +  I  +  +     M  +  +  +  +  +  +  +|  38        |
      Adenocarcinoma, Metastatic, Uterus   |                                                                          |          1 |
      Adenoma                              |                                     X                                    |          1 |
      Luteoma                              |                                     X                                    |          2 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |             X                                X                          X|          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +     +  +  +  +  M  +  +  +|  44        |
      Adenocarcinoma                       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         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   7                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 5| 7| 7| 7| 7| 6| 4| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7| 7| 0| 4| 7| 7|            |
                             DAY ON TEST   | 3| 9| 3| 5| 3| 3| 3| 2| 8| 2| 3| 3| 3| 4| 8| 3| 4| 8| 3| 3| 3| 3| 6| 3| 3|            |
                                           | 1| 8| 1| 2| 1| 1| 3| 3| 3| 6| 2| 2| 2| 1| 6| 2| 7| 0| 2| 3| 3| 0| 5| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 7| 7| 7| 7| 7| 7| 8| 9| 9| 0| 0| 0| 0| 0| 0| 0| 2| 2| 2| 3| 3| 3| 3| 3| 3|     A      |
    CONTOL                                 | 1| 3| 4| 5| 8| 9| 0| 6| 7| 0| 1| 2| 4| 5| 7| 9| 7| 8| 9| 0| 1| 3| 4| 8| 9|     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                     |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  A  +  +|  41        |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Axillary, Lymphoma Malignant Mixed   |                                                                         X|          1 |
      Iliac, Lymphoma Malignant Mixed      |                                                                         X|          1 |
      Iliac, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                                                                          |          1 |
      Pancreatic, Lymphoma Malignant Mixed |                                                                         X|          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                         X|          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +     +  +  +  +  M  +  +  +|  38        |
      Adenocarcinoma, Metastatic, Uterus   |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |                                              X                          X|          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  M  +  +  +  +  +  +  +  +  M  M  +  +  M  +     +  +  M  +  +  M  +  +|  35        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                              X                          X|          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +  M  +  +  M  M  M  +  +  M  M  M  M  M  M  M     M  M  M  M  M  +  M  +|  13        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  M  +  +  +  +  +  +  +  +  +  +  I  +     +  +  +  M  M  +  M  +|  35        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |                                              X                          X|          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  45        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          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   8                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 5| 7| 7| 7| 7| 6| 4| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7| 7| 0| 4| 7| 7|            |
                             DAY ON TEST   | 3| 9| 3| 5| 3| 3| 3| 2| 8| 2| 3| 3| 3| 4| 8| 3| 4| 8| 3| 3| 3| 3| 6| 3| 3|            |
                                           | 1| 8| 1| 2| 1| 1| 3| 3| 3| 6| 2| 2| 2| 1| 6| 2| 7| 0| 2| 3| 3| 0| 5| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 7| 7| 7| 7| 7| 7| 8| 9| 9| 0| 0| 0| 0| 0| 0| 0| 2| 2| 2| 3| 3| 3| 3| 3| 3|     A      |
    CONTOL                                 | 1| 3| 4| 5| 8| 9| 0| 6| 7| 0| 1| 2| 4| 5| 7| 9| 7| 8| 9| 0| 1| 3| 4| 8| 9|     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               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  M  +  M  +  +  +  +  M  +     +  +  +  +  M  +  I  +|  40        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |             X                                                           X|          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     M  +  +  +  A  +  +  +|  41        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  +  M  +  +  +  +  +  I  +  +  +  +     +  +  +  +  +  +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Alveolar/Bronchiolar Adenoma         |                   X                                                      |          3 |
      Alveolar/Bronchiolar Carcinoma       |                                                          X               |          2 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                           X                              |          2 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |             X                                X                          X|          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M     +  +  +  +  A  A  +  +|  40        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |                                                                         +|   2        |
      Adenoma                              |                                                                         X|          2 |
 _____________________________________________________________________________________________________________________|            |
 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   9                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 5| 7| 7| 7| 7| 6| 4| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7| 7| 0| 4| 7| 7|            |
                             DAY ON TEST   | 3| 9| 3| 5| 3| 3| 3| 2| 8| 2| 3| 3| 3| 4| 8| 3| 4| 8| 3| 3| 3| 3| 6| 3| 3|            |
                                           | 1| 8| 1| 2| 1| 1| 3| 3| 3| 6| 2| 2| 2| 1| 6| 2| 7| 0| 2| 3| 3| 0| 5| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|     T      |
                               ANIMAL ID   | 7| 7| 7| 7| 7| 7| 8| 9| 9| 0| 0| 0| 0| 0| 0| 0| 2| 2| 2| 3| 3| 3| 3| 3| 3|     A      |
    CONTOL                                 | 1| 3| 4| 5| 8| 9| 0| 6| 7| 0| 1| 2| 4| 5| 7| 9| 7| 8| 9| 0| 1| 3| 4| 8| 9|     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                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  M  +  +  +|  44        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                         X|          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +|  46        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          2 |
      Lymphoma Malignant Mixed             |             X                                X                          X|          3 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          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  10                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 7| 6| 7| 7| 7| 7| 5| 7| 6| 7| 0| 6| 6| 6| 7| 7| 6| 6| 7| 7| 7| 0| 7|             
                             DAY ON TEST   | 2| 5| 1| 1| 2| 2| 2| 3| 0| 3| 2| 3| 9| 2| 7| 9| 3| 3| 4| 9| 1| 3| 3| 9| 2|             
                                           | 2| 9| 2| 8| 9| 9| 9| 3| 0| 0| 2| 0| 2| 8| 6| 9| 0| 0| 1| 2| 4| 1| 1| 0| 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                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|             
                               ANIMAL ID   | 1| 1| 2| 2| 2| 2| 3| 4| 5| 5| 5| 5| 5| 5| 5| 6| 7| 7| 8| 8| 8| 8| 8| 9| 0|             
    6 MG/M3                                | 6| 9| 0| 2| 4| 9| 0| 7| 0| 2| 3| 4| 5| 6| 8| 0| 6| 8| 1| 3| 5| 7| 9| 0| 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                               | +  +  +  +  +  +  +  +  M  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | M  +  +  A  +  +  +  +  A  +     +  M  A  A  A  +  +  A  A  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | A  +  +  +  +  +  +  +  A  +     +  +  A  A  A  +  +  A  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | A  +  +  A  +  +  +  +  A  +     +  A  A  A  A  +  +  A  A  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | A  +  +  +  +  +  +  +  A  +     +  A  A  A  A  +  +  A  +  A  +  +  +  +|             
      Leiomyosarcoma                       |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | A  M  +  +  +  +  M  +  A  +     +  +  M  A  A  +  +  A  A  A  M  I  M  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | A  +  +  A  +  +  +  +  A  +     +  A  A  A  A  +  +  A  A  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | A  +  +  A  +  +  +  +  A  +     +  A  A  A  A  +  +  A  A  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | A  +  +  A  +  +  +  +  A  +     +  A  A  A  A  +  +  A  A  A  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | A  +  +  A  +  +  +  +  A  +     +  A  A  A  A  +  +  A  A  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
      Hemangioma                           |                                                 X                        |             
      Hepatocellular Carcinoma             |                                                                          |             
      Hepatocellular Adenoma               |                                                 X                        |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  I  +  +  +  +  +  A  +     +  +  I  A  A  +  +  M  +  A  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                   X      |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                        X                                 |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  A  +  +  +  +  A  +     +  +  +  A  +  +  +  A  +  A  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +     +  +  M  A  +  +  +  +  +  A  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  I  I  I  +  M  +  A  +     I  I  M  A  M  +  M  M  I  A  +  +  +  I|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  M  M  M  I  I  +  M  M     +  +  +  M  M  +  M  M  +  M  M  +  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +     +  +  I  M  I  +  +  +  M  +  +  +  +  +|             
      Adenoma                              |                                                                X  X     X|             
      Carcinoma                            |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                                                         X|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                +                                                         |             
      Lymphoma Malignant Mixed             |                X                                                         |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  11                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 7| 6| 7| 7| 7| 7| 5| 7| 6| 7| 0| 6| 6| 6| 7| 7| 6| 6| 7| 7| 7| 0| 7|             
                             DAY ON TEST   | 2| 5| 1| 1| 2| 2| 2| 3| 0| 3| 2| 3| 9| 2| 7| 9| 3| 3| 4| 9| 1| 3| 3| 9| 2|             
                                           | 2| 9| 2| 8| 9| 9| 9| 3| 0| 0| 2| 0| 2| 8| 6| 9| 0| 0| 1| 2| 4| 1| 1| 0| 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                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|             
                               ANIMAL ID   | 1| 1| 2| 2| 2| 2| 3| 4| 5| 5| 5| 5| 5| 5| 5| 6| 7| 7| 8| 8| 8| 8| 8| 9| 0|             
    6 MG/M3                                | 6| 9| 0| 2| 4| 9| 0| 7| 0| 2| 3| 4| 5| 6| 8| 0| 6| 8| 1| 3| 5| 7| 9| 0| 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|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM - cont                |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  M  M  +  +     +  +  M  A  +  +  +  +  +  +  +  +  M  +|             
      Adenoma                              |                                                                          |             
      Cystadenoma                          |                                                                         X|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  A  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node                              | A  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Iliac, Lymphoma Malignant Lymphocytic|                                        X                                 |             
      Iliac, Lymphoma Malignant Mixed      |                                                 X                        |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Lymphocytic                      |                                        X                                 |             
      Renal, Lymphoma Malignant Mixed      |                                                 X                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | M  +  I  M  +  I  +  +  +  +     +  M  +  +  +  +  M  M  +  +  +  +  I  +|             
      Adenocarcinoma, Metastatic, Kidney   |                                                                          |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                           X                              |             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                                                 X                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | M  +  +  +  M  +  +  +  M  +     +  +  +  +  M  +  M  M  +  M  +  +  M  +|             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                                                 X                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | M  M  M  M  M  +  M  M  M  +     M  M  +  M  M  +  +  +  I  M  +  +  M  M|             
      Adenocarcinoma, Metastatic, Kidney   |                                                                          |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                                                 X  X                     |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | A  +  +  +  +  +  +  +  A  +     I  M  +  A  +  M  +  A  +  A  +  M  +  +|             
      Lymphoma Malignant Lymphocytic       |                                        X                                 |             
      Lymphoma Malignant Mixed             |                X                                                         |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  A  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                X                                X                        |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  I  +  +  +  +  +  +     +  M  +  M  I  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                X                                X  X                     |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  12                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 4| 5| 7| 6| 7| 7| 7| 7| 5| 7| 6| 7| 0| 6| 6| 6| 7| 7| 6| 6| 7| 7| 7| 0| 7|             
                             DAY ON TEST   | 2| 5| 1| 1| 2| 2| 2| 3| 0| 3| 2| 3| 9| 2| 7| 9| 3| 3| 4| 9| 1| 3| 3| 9| 2|             
                                           | 2| 9| 2| 8| 9| 9| 9| 3| 0| 0| 2| 0| 2| 8| 6| 9| 0| 0| 1| 2| 4| 1| 1| 0| 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                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|             
                               ANIMAL ID   | 1| 1| 2| 2| 2| 2| 3| 4| 5| 5| 5| 5| 5| 5| 5| 6| 7| 7| 8| 8| 8| 8| 8| 9| 0|             
    6 MG/M3                                | 6| 9| 0| 2| 4| 9| 0| 7| 0| 2| 3| 4| 5| 6| 8| 0| 6| 8| 1| 3| 5| 7| 9| 0| 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|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +     +  +  +  M  +  I  +  +  +  +  +  +  I  +|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +     +  +  +  M  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Vertebra, Alveolar/Bronchiolar       |                                                                          |             
          Carcinoma, Metastatic, Lung      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  +  +  A  +  +  +  +  A  +     +  +  +  +  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma, Metastatic, Kidney   |                                                                          |             
      Alveolar/Bronchiolar Adenoma         |    X                             X                                       |             
      Alveolar/Bronchiolar Carcinoma       |                                           X                              |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                                                 X  X                     |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  A  +     +  +  +  +  +  +  +  +  +  A  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  A  +  +  +  +  A  +     +  +  A  M  +  +  +  A  +  A  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |                                                                          |             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
      Adenocarcinoma                       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                        X                                 |             
      Lymphoma Malignant Mixed             |                                                 X                        |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +     +  A  +  A  +  +  +  A  +  A  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                        X                          X      |             
      Lymphoma Malignant Mixed             |                X                                X  X                     |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  13                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 7| 7| 4| 0| 7| 6| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 7| 6| 7| 5| 5| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 9| 2| 0| 2| 4| 3| 8| 0| 3| 3| 3| 5| 3| 3| 3| 7| 3| 6| 4| 3| 3|            |
                                           | 0| 5| 1| 1| 1| 0| 9| 1| 5| 1| 6| 9| 2| 2| 4| 4| 2| 2| 2| 8| 2| 4| 8| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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                      | 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   | 0| 0| 0| 1| 1| 1| 1| 2| 3| 3| 3| 4| 4| 4| 4| 4| 6| 6| 6| 7| 7| 7| 7| 7| 8|     A      |
    6 MG/M3                                | 7| 8| 9| 1| 5| 7| 8| 0| 6| 8| 9| 0| 4| 5| 7| 8| 6| 8| 9| 1| 2| 5| 6| 8| 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                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  A  +  +  M  A  +  A  A  +  M  A  +  +  A  +  +  +  +  A  +  A  +  +  +|  29        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  A  A  +  +  A  +  A  A  +  +  +  +  +  +  +  +  +  A  A  +  +|  35        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  A  A  +  +  A  +  A  A  +  +  A  +  +  +  +  A  +  A  A  +  +|  30        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  A  A  +  +  A  +  A  A  +  +  +  +  +  +  +  +  +  A  A  +  +|  34        |
      Leiomyosarcoma                       |                                                    X                     |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  M  +  +  A  A  +  M  A  +  A  A  +  +  M  I  +  +  M  +  +  A  M  +  M|  23        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  A  A  +  +  A  +  A  A  +  +  A  +  +  +  +  A  +  A  A  +  +|  30        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  A  +  +  A  A  +  +  A  +  A  A  +  I  A  +  +  +  +  A  +  A  A  M  M|  26        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  A  +  +  A  A  +  +  A  +  A  A  +  +  A  +  +  +  +  A  +  A  A  +  +|  28        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  A  A  +  +  A  +  A  A  +  +  A  +  +  M  +  A  +  A  A  +  +|  29        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Hemangioma                           |                                                                          |          1 |
      Hepatocellular Carcinoma             |          X              X     X        X                                X|          5 |
      Hepatocellular Adenoma               |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  40        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  A  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  A  +  +  +|  40        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |             X                                                            |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  I  A  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +|  44        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | I  +  I  +  A  M  M  M  +  I  M  I  I  +  I  +  +  +  +  +  +  M  I  +  +|  21        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | M  +  M  +  A  I  I  +  +  M  I  +  M  I  M  +  M  M  +  M  I  M  +  M  +|  19        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +|  43        |
      Adenoma                              |                                                       X                  |          4 |
      Carcinoma                            |                                           X              X               |          2 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  14                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 7| 7| 4| 0| 7| 6| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 7| 6| 7| 5| 5| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 9| 2| 0| 2| 4| 3| 8| 0| 3| 3| 3| 5| 3| 3| 3| 7| 3| 6| 4| 3| 3|            |
                                           | 0| 5| 1| 1| 1| 0| 9| 1| 5| 1| 6| 9| 2| 2| 4| 4| 2| 2| 2| 8| 2| 4| 8| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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                      | 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   | 0| 0| 0| 1| 1| 1| 1| 2| 3| 3| 3| 4| 4| 4| 4| 4| 6| 6| 6| 7| 7| 7| 7| 7| 8|     A      |
    6 MG/M3                                | 7| 8| 9| 1| 5| 7| 8| 0| 6| 8| 9| 0| 4| 5| 7| 8| 6| 8| 9| 1| 2| 5| 6| 8| 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|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
      Follicular Cell, Adenoma             |                                                       X                  |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |                                                                          |   1        |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  43        |
      Adenoma                              |                                     X                                    |          1 |
      Cystadenoma                          |                                                                          |          1 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  A  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  A  +  +|  44        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Iliac, Lymphoma Malignant Lymphocytic|                                                                          |          1 |
      Iliac, Lymphoma Malignant Mixed      |                                                                          |          1 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Lymphocytic                      |                                                                          |          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  +  +  M  +  +  +  +  M  +  +  +  +  I  +  +  +  +  +  +  M  +  +|  37        |
      Adenocarcinoma, Metastatic, Kidney   |                         X                                                |          1 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |             X     X                                                      |          3 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  M  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|  38        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             | X                                                                        |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +  M  +  +  +  M  +  M  +  M  +  +  M  M  M  M  M  M  +  M  M  M  M  M  M|  17        |
      Adenocarcinoma, Metastatic, Kidney   |                         X                                                |          1 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                   X                                                      |          1 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  I  A  M  +  +  +  +  M  +  +  M  +  +  +  +  M  M  +  +  M  +  +|  32        |
      Lymphoma Malignant Lymphocytic       |                                  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  15                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 7| 7| 4| 0| 7| 6| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 7| 6| 7| 5| 5| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 9| 2| 0| 2| 4| 3| 8| 0| 3| 3| 3| 5| 3| 3| 3| 7| 3| 6| 4| 3| 3|            |
                                           | 0| 5| 1| 1| 1| 0| 9| 1| 5| 1| 6| 9| 2| 2| 4| 4| 2| 2| 2| 8| 2| 4| 8| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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                      | 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   | 0| 0| 0| 1| 1| 1| 1| 2| 3| 3| 3| 4| 4| 4| 4| 4| 6| 6| 6| 7| 7| 7| 7| 7| 8|     A      |
    6 MG/M3                                | 7| 8| 9| 1| 5| 7| 8| 0| 6| 8| 9| 0| 4| 5| 7| 8| 6| 8| 9| 1| 2| 5| 6| 8| 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 Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  M  +  +  +  +  M  +  +  +  I  +  +  +  +  M  +  +  +  +  +|  41        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |             X     X                                                      |          2 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          3 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Vertebra, Alveolar/Bronchiolar       |                                                                          |            |
          Carcinoma, Metastatic, Lung      |                   X                                                      |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  A  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +|  44        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Adenocarcinoma, Metastatic, Kidney   |                         X                                                |          1 |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          2 |
      Alveolar/Bronchiolar Carcinoma       |    X        X     X                                                      |          4 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |          X              X                                                |          2 |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  A  M  M  M|  37        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                      +                                                   |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |       +              +                                                   |   2        |
      Adenoma                              |       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  16                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 7| 7| 4| 0| 7| 6| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 7| 6| 7| 5| 5| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 9| 2| 0| 2| 4| 3| 8| 0| 3| 3| 3| 5| 3| 3| 3| 7| 3| 6| 4| 3| 3|            |
                                           | 0| 5| 1| 1| 1| 0| 9| 1| 5| 1| 6| 9| 2| 2| 4| 4| 2| 2| 2| 8| 2| 4| 8| 3| 3|            |
 _____________________________________________________________________________________________________________________|     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                      | 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   | 0| 0| 0| 1| 1| 1| 1| 2| 3| 3| 3| 4| 4| 4| 4| 4| 6| 6| 6| 7| 7| 7| 7| 7| 8|     A      |
    6 MG/M3                                | 7| 8| 9| 1| 5| 7| 8| 0| 6| 8| 9| 0| 4| 5| 7| 8| 6| 8| 9| 1| 2| 5| 6| 8| 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|            |
 __________________________________________________________________________________________________________________________________ 
 SPECIAL SENSES SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Adenocarcinoma                       |                         X                                                |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  A  A  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  41        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Lymphoma Malignant Lymphocytic       |                                  X                                       |          3 |
      Lymphoma Malignant Mixed             | 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  17                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 5| 0| 0| 0| 0| 7| 6| 6| 7| 6| 7| 6| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 2| 2| 6| 6| 2| 4| 2| 8| 2| 4| 2| 3| 1| 3| 3| 9| 1| 8| 3|             
                                           | 8| 8| 6| 8| 8| 8| 8| 9| 1| 5| 9| 6| 9| 6| 9| 8| 9| 3| 8| 0| 0| 2| 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| 0|             
   B6C3F1 MICE FEMALE                      | 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 0| 0| 0| 0| 0| 0| 1| 2| 2| 2| 3| 3| 3| 3| 3| 4| 5| 5| 6| 6| 6| 6| 7| 8|             
    18 MG/M3                               | 6| 1| 2| 3| 4| 6| 7| 0| 7| 8| 9| 2| 4| 6| 8| 9| 0| 6| 9| 0| 1| 6| 7| 0| 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                               | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | M  M  M  A  A  A  M  +  A  A  +  A  +  A  +  A  +  M  +  M  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | A  A  A  +  +  A  A  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | A  A  A  +  A  A  A  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +|             
      Leiomyoma                            |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | A  A  A  +  A  A  A  +  A  A  +  A  +  +  +  +  +  +  +  +  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | A  A  M  +  +  A  A  +  A  M  +  +  +  +  +  M  M  +  +  +  M  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         | A  A  A  +  A  A  A  +  A  A  +  +  +  A  +  +  +  +  +  +  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | A  A  A  +  A  A  A  M  A  A  +  A  M  A  +  M  +  +  +  +  M  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | A  A  A  A  A  A  A  +  A  A  +  +  +  A  +  +  +  +  +  +  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | A  A  A  +  A  A  A  +  A  A  +  A  +  A  +  A  +  +  +  +  +  +  A  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hepatocellular Carcinoma             |                      X                                X                  |             
      Hepatocellular Adenoma               |                                                       X              X   |             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  A  +  M  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | I  I  +  M  +  +  I  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  M  I  M  A  M  +  +  M  I  +  M  I  I  M  +  I  +  I  +  I  A  I  I|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | M  M  M  +  +  M  M  M  I  +  I  +  +  M  +  +  +  +  +  I  M  M  +  M  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  M  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Adenoma                              |                      X     X                                             |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Follicular Cell, Adenoma             |                                                             X           X|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  18                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 5| 0| 0| 0| 0| 7| 6| 6| 7| 6| 7| 6| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 2| 2| 6| 6| 2| 4| 2| 8| 2| 4| 2| 3| 1| 3| 3| 9| 1| 8| 3|             
                                           | 8| 8| 6| 8| 8| 8| 8| 9| 1| 5| 9| 6| 9| 6| 9| 8| 9| 3| 8| 0| 0| 2| 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| 0|             
   B6C3F1 MICE FEMALE                      | 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 0| 0| 0| 0| 0| 0| 1| 2| 2| 2| 3| 3| 3| 3| 3| 4| 5| 5| 6| 6| 6| 6| 7| 8|             
    18 MG/M3                               | 6| 1| 2| 3| 4| 6| 7| 0| 7| 8| 9| 2| 4| 6| 8| 9| 0| 6| 9| 0| 1| 6| 7| 0| 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|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM - cont                |                                                                          |             
                                           |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                                                                          |             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma                      |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Carcinoma Adenosquamous              |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  A  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Axillary, Lymphoma Malignant Mixed   |                                                                   X      |             
      Iliac, Lymphoma Malignant Lymphocytic|                                                                          |             
      Iliac, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Lymphocytic                      |                                                                          |             
      Renal, Lymphoma Malignant Lymphocytic|                                                                          |             
      Renal, Lymphoma Malignant Mixed      |                                                                   X      |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | M  M  I  +  M  M  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | M  M  +  M  +  +  +  M  +  +  +  +  +  +  M  +  I  +  +  M  +  +  +  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | M  M  M  M  M  M  M  M  +  +  M  M  M  M  M  +  M  M  +  M  M  +  +  M  M|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  19                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 5| 0| 0| 0| 0| 7| 6| 6| 7| 6| 7| 6| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 2| 2| 6| 6| 2| 4| 2| 8| 2| 4| 2| 3| 1| 3| 3| 9| 1| 8| 3|             
                                           | 8| 8| 6| 8| 8| 8| 8| 9| 1| 5| 9| 6| 9| 6| 9| 8| 9| 3| 8| 0| 0| 2| 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| 0|             
   B6C3F1 MICE FEMALE                      | 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 0| 0| 0| 0| 0| 0| 1| 2| 2| 2| 3| 3| 3| 3| 3| 4| 5| 5| 6| 6| 6| 6| 7| 8|             
    18 MG/M3                               | 6| 1| 2| 3| 4| 6| 7| 0| 7| 8| 9| 2| 4| 6| 8| 9| 0| 6| 9| 0| 1| 6| 7| 0| 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               |                                                                          |             
                                           |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | M  A  A  +  M  M  M  M  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                                                                          |             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | M  +  +  M  +  +  M  +  +  +  +  +  +  M  +  +  +  +  I  +  +  +  M  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosarcoma                         |                                                                          |             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                      +                                                   |             
      Thoracic, Ganglioneuroma             |                      X                                                   |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  M  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |                                              X                           |             
      Alveolar/Bronchiolar Carcinoma       |                                                                          |             
      Hemangiosarcoma, Metastatic, Tissue  |                                                                          |             
          NOS                              |                                                                          |             
      Lymphoma Malignant Histiocytic       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  20                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 5| 0| 0| 0| 0| 7| 6| 6| 7| 6| 7| 6| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 2| 2| 6| 6| 2| 4| 2| 8| 2| 4| 2| 3| 1| 3| 3| 9| 1| 8| 3|             
                                           | 8| 8| 6| 8| 8| 8| 8| 9| 1| 5| 9| 6| 9| 6| 9| 8| 9| 3| 8| 0| 0| 2| 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| 0|             
   B6C3F1 MICE FEMALE                      | 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 0| 0| 0| 0| 0| 0| 1| 2| 2| 2| 3| 3| 3| 3| 3| 4| 5| 5| 6| 6| 6| 6| 7| 8|             
    18 MG/M3                               | 6| 1| 2| 3| 4| 6| 7| 0| 7| 8| 9| 2| 4| 6| 8| 9| 0| 6| 9| 0| 1| 6| 7| 0| 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|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |                                                                          |             
      Adenocarcinoma                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | A  +  +  +  +  +  A  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +  +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Histiocytic       |                                                                          |             
      Lymphoma Malignant Lymphocytic       |                                                                          |             
      Lymphoma Malignant Mixed             |                                                                   X      |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  21                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 0| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 4| 6| 5| 7| 7| 7| 7| 5|            |
                             DAY ON TEST   | 3| 3| 3| 2| 3| 0| 3| 3| 5| 3| 3| 3| 3| 3| 4| 3| 0| 7| 5| 5| 3| 3| 3| 3| 6|            |
                                           | 0| 3| 3| 0| 1| 6| 1| 1| 4| 1| 1| 3| 2| 2| 2| 2| 8| 3| 5| 8| 2| 2| 2| 3| 9|            |
 _____________________________________________________________________________________________________________________|     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                      | 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 8| 8| 9| 9| 9| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 2| 4| 4| 5| 5| 5| 5| 5| 5| 6|     A      |
    18 MG/M3                               | 8| 9| 0| 2| 4| 6| 8| 9| 6| 7| 9| 2| 4| 6| 8| 9| 6| 9| 2| 3| 4| 5| 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  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  A  +  +  +  +  A  +  +  +  +  +  A  +  +  M  +  A  +  +  +  +  A|  29        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  A|  36        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  +  +  A  A  +  +  +  +  A|  34        |
      Leiomyoma                            |                      X                                                   |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  +  I  A  A  +  +  +  +  A|  32        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  A  +  M  M  +  A  +  M  +  M  +  A  +  I  M  M  +  I  +  +  +  A|  27        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  A|  34        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  M  A  +  A  +  +  A  +  +  +  +  +  A  +  +  +  A  A  +  +  +  +  A|  27        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  A  +  A  A  +  +  +  +  A|  31        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  A  +  A  +  +  +  +  +  A|  31        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hepatocellular Carcinoma             |                   X           X                                          |          4 |
      Hepatocellular Adenoma               | X  X                                                                     |          4 |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A|  44        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X                  |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  I|  46        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                   X      |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  A  +  +  +  M  +  I  +  M  I  +  M  +  +  +  +  +  I  I  +  I  I|  23        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | M  +  +  +  +  +  I  +  +  +  M  M  M  +  M  +  M  M  +  +  M  I  M  +  +|  25        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 0| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 4| 6| 5| 7| 7| 7| 7| 5|            |
                             DAY ON TEST   | 3| 3| 3| 2| 3| 0| 3| 3| 5| 3| 3| 3| 3| 3| 4| 3| 0| 7| 5| 5| 3| 3| 3| 3| 6|            |
                                           | 0| 3| 3| 0| 1| 6| 1| 1| 4| 1| 1| 3| 2| 2| 2| 2| 8| 3| 5| 8| 2| 2| 2| 3| 9|            |
 _____________________________________________________________________________________________________________________|     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                      | 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 8| 8| 9| 9| 9| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 2| 4| 4| 5| 5| 5| 5| 5| 5| 6|     A      |
    18 MG/M3                               | 8| 9| 0| 2| 4| 6| 8| 9| 6| 7| 9| 2| 4| 6| 8| 9| 6| 9| 2| 3| 4| 5| 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|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Adenoma                              |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Follicular Cell, Adenoma             |                                                                          |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              | +                                                  +                     |   2        |
      Hemangioma                           | X                                                                        |          1 |
      Hemangiosarcoma                      |                                                    X                     |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  M  +  +  M  +  +  +  +  +  +|  46        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                   X      |          1 |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Carcinoma Adenosquamous              |                                                                   X      |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                   X      |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  A|  45        |
      Lymphoma Malignant Mixed             |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Axillary, Lymphoma Malignant Mixed   |                                                                          |          1 |
      Iliac, Lymphoma Malignant Lymphocytic|                      X                                                   |          1 |
      Iliac, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                                                                   X      |          1 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Lymphocytic                      |                                              X                           |          1 |
      Renal, Lymphoma Malignant Lymphocytic|                                              X                           |          1 |
      Renal, Lymphoma Malignant Mixed      |                                                                          |          1 |
      Renal, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       |                                                                   X      |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  43        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Lymphocytic       |                      X                       X                           |          2 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       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  23                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 0| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 4| 6| 5| 7| 7| 7| 7| 5|            |
                             DAY ON TEST   | 3| 3| 3| 2| 3| 0| 3| 3| 5| 3| 3| 3| 3| 3| 4| 3| 0| 7| 5| 5| 3| 3| 3| 3| 6|            |
                                           | 0| 3| 3| 0| 1| 6| 1| 1| 4| 1| 1| 3| 2| 2| 2| 2| 8| 3| 5| 8| 2| 2| 2| 3| 9|            |
 _____________________________________________________________________________________________________________________|     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                      | 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 8| 8| 9| 9| 9| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 2| 4| 4| 5| 5| 5| 5| 5| 5| 6|     A      |
    18 MG/M3                               | 8| 9| 0| 2| 4| 6| 8| 9| 6| 7| 9| 2| 4| 6| 8| 9| 6| 9| 2| 3| 4| 5| 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               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | M  M  +  +  +  +  +  +  +  +  +  M  M  M  +  +  +  +  +  M  +  +  +  +  M|  36        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Lymphocytic       |                      X        X              X                           |          3 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +  +  +  M  M  M  +  +  M  M  +  M  M  M  M  M  M  M  +  M  M  M  +  M  M|  14        |
      Lymphoma Malignant Lymphocytic       |                      X                                                   |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  M  +  M  +  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M  +|  37        |
      Lymphoma Malignant Lymphocytic       |                      X                                                   |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemangiosarcoma                      |                                              X                           |          1 |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Lymphocytic       |                      X                                                   |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  I  +|  41        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Lymphocytic       |                                              X                           |          1 |
      Lymphoma Malignant Mixed             |    X                                                                     |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Fibrosarcoma                         |                                        X                                 |          1 |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X                  |          1 |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL 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  24                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 0| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 6| 7| 5| 4| 6| 5| 7| 7| 7| 7| 5|            |
                             DAY ON TEST   | 3| 3| 3| 2| 3| 0| 3| 3| 5| 3| 3| 3| 3| 3| 4| 3| 0| 7| 5| 5| 3| 3| 3| 3| 6|            |
                                           | 0| 3| 3| 0| 1| 6| 1| 1| 4| 1| 1| 3| 2| 2| 2| 2| 8| 3| 5| 8| 2| 2| 2| 3| 9|            |
 _____________________________________________________________________________________________________________________|     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                      | 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 8| 8| 9| 9| 9| 9| 9| 9| 1| 1| 1| 2| 2| 2| 2| 2| 4| 4| 5| 5| 5| 5| 5| 5| 6|     A      |
    18 MG/M3                               | 8| 9| 0| 2| 4| 6| 8| 9| 6| 7| 9| 2| 4| 6| 8| 9| 6| 9| 2| 3| 4| 5| 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             |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
      Thoracic, Ganglioneuroma             |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Alveolar/Bronchiolar Adenoma         |                      X                                                   |          2 |
      Alveolar/Bronchiolar Carcinoma       |                                                          X               |          1 |
      Hemangiosarcoma, Metastatic, Tissue  |                                                                          |            |
          NOS                              |                                                    X                     |          1 |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       X           X      |          2 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  M  +  I  +  A  +  +  +  M  +  +  +  +  +  +|  45        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |                +                                                         |   1        |
      Adenocarcinoma                       |                X                                                         |          1 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Lymphoma Malignant Lymphocytic       |                      X                                                   |          1 |
      Lymphoma Malignant Mixed             |                                                                          |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                   X      |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  A  +  A  +  +  A  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  +|  41        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Lymphoma Malignant Histiocytic       |                                           X                              |          1 |
      Lymphoma Malignant Lymphocytic       |                      X        X              X                           |          3 |
      Lymphoma Malignant Mixed             |    X                                                                     |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                       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  25                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 5| 3| 1| 5| 1| 7| 1| 5| 5| 4| 7| 5| 5| 0| 1| 7| 7| 7| 7| 3| 5| 7| 5|             
                             DAY ON TEST   | 3| 3| 4| 6| 8| 4| 8| 1| 8| 4| 4| 0| 1| 4| 3| 2| 8| 3| 0| 3| 3| 6| 0| 3| 5|             
                                           | 2| 2| 9| 9| 5| 9| 5| 1| 6| 9| 9| 4| 5| 9| 2| 8| 6| 2| 1| 2| 2| 8| 4| 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| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 0| 0| 0| 1| 1| 1| 1| 1| 3| 3| 3| 3| 4| 4| 4| 6| 6| 7|             
    CONTROL                                | 8| 9| 0| 3| 5| 7| 8| 6| 7| 8| 0| 2| 3| 4| 9| 6| 7| 8| 9| 7| 8| 9| 6| 8| 2|             
    LUNG TOX                               | 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                 |       +  I  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Intestine Small                         |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Liver                                   |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Pancreas                                |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Salivary Glands                         |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Stomach                                 |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |       +  M  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |       M  +  M           +  M           M                                 |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |       +  +  M           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |          +                                                               |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Uterus                                  |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Lymph Node                              |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   |       +  +  +           +  M           +                                 |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |       +  M  +           M  +           M                                 |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 |       +  +  M           M  +           +                                 |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Spleen                                  |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  26                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 5| 3| 1| 5| 1| 7| 1| 5| 5| 4| 7| 5| 5| 0| 1| 7| 7| 7| 7| 3| 5| 7| 5|             
                             DAY ON TEST   | 3| 3| 4| 6| 8| 4| 8| 1| 8| 4| 4| 0| 1| 4| 3| 2| 8| 3| 0| 3| 3| 6| 0| 3| 5|             
                                           | 2| 2| 9| 9| 5| 9| 5| 1| 6| 9| 9| 4| 5| 9| 2| 8| 6| 2| 1| 2| 2| 8| 4| 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| 0|             
   B6C3F1 MICE FEMALE                      | 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 7| 7| 8| 8| 8| 8| 8| 0| 0| 0| 1| 1| 1| 1| 1| 3| 3| 3| 3| 4| 4| 4| 6| 6| 7|             
    CONTROL                                | 8| 9| 0| 3| 5| 7| 8| 6| 7| 8| 0| 2| 3| 4| 9| 6| 7| 8| 9| 7| 8| 9| 6| 8| 2|             
    LUNG TOX                               | 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                                  |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |       +  +  M           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Skin                                    |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Lung                                    |       +  +  +           +  +           +                                 |             
      Alveolar/Bronchiolar Adenoma         |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Trachea                                 |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |       +  +  +           +  +           +                                 |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |       +  +  +           +  +           +                                 |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  27                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 1| 7| 3| 1| 3| 5| 1| 3| 1| 5| 3| 6| 5| 3|                                |            |
                             DAY ON TEST   | 8| 3| 6| 8| 6| 4| 8| 6| 8| 5| 6| 9| 7| 6|                                |            |
                                           | 6| 2| 8| 6| 9| 9| 7| 9| 7| 0| 9| 4| 6| 9|                                |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                |     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|                                |     T      |
                               ANIMAL ID   | 7| 7| 9| 9| 0| 0| 0| 1| 2| 3| 3| 3| 3| 4|                                |     A      |
    CONTROL                                | 6| 7| 8| 9| 3| 6| 8| 0| 6| 2| 5| 6| 7| 0|                                |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                                |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | M           +  +  +           +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +           +  +  +           +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +           +  M  +           +                                          |  10        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +           +  +  +           +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +           +  M  M           +                                          |   5        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +           +  +  M           +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +           +  M  +           +                                          |   9        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |             +                 +                                          |   3        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +           +  +  +           +                                          |  11        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 1| 7| 3| 1| 3| 5| 1| 3| 1| 5| 3| 6| 5| 3|                                |            |
                             DAY ON TEST   | 8| 3| 6| 8| 6| 4| 8| 6| 8| 5| 6| 9| 7| 6|                                |            |
                                           | 6| 2| 8| 6| 9| 9| 7| 9| 7| 0| 9| 4| 6| 9|                                |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                |     O      |
   B6C3F1 MICE FEMALE                      | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5|                                |     T      |
                               ANIMAL ID   | 7| 7| 9| 9| 0| 0| 0| 1| 2| 3| 3| 3| 3| 4|                                |     A      |
    CONTROL                                | 6| 7| 8| 9| 3| 6| 8| 0| 6| 2| 5| 6| 7| 0|                                |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                                |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +           M  +  +           +                                          |   9        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +           +  +  M           +                                          |   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +           M  M  M           M                                          |   5        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +           +  +  +           +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +           +  +  +           +                                          |  11        |
      Alveolar/Bronchiolar Adenoma         |                X                                                         |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +           +  +  +           +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +           +  +  +           +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +           +  +  +           +                                          |  11        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +           +  +  +           +                                          |  11        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 3| 5| 5| 3| 3| 7| 1| 7| 6| 3| 1| 1| 6| 5| 7| 7| 1| 5| 0| 6| 7| 1| 3| 0| 5|             
                             DAY ON TEST   | 6| 4| 4| 6| 6| 1| 8| 3| 5| 6| 8| 8| 5| 4| 3| 3| 8| 4| 1| 7| 3| 8| 6| 0| 2|             
                                           | 9| 9| 9| 8| 9| 7| 5| 2| 9| 8| 5| 6| 5| 9| 2| 2| 6| 9| 7| 8| 2| 7| 9| 4| 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                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1|             
                               ANIMAL ID   | 1| 1| 2| 2| 2| 2| 2| 2| 4| 4| 4| 5| 5| 5| 7| 7| 8| 8| 8| 8| 8| 1| 1| 1| 1|             
    6 MG/M3                                | 7| 8| 1| 3| 5| 6| 7| 8| 6| 8| 9| 1| 7| 9| 7| 9| 0| 2| 4| 6| 8| 0| 2| 3| 4|             
    LUNG TOX                               | 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     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +        +     M              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +        +     +              +     +           +              M      |             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +        +     +              +     M           +              +      |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +        +     +              +     +                          +      |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +        +     +              +     +                          +      |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +        +     +              +     M           +              +      |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | M  +        +     M              M     M           M              M      |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +        +     M              M     +           +              +      |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +        +     +              +     +           M              +      |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              | +           +                                                     +      |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +        M     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +        +     +              +     +           +              +      |             
      Endometrium, Polyp                   |                                                                   X      |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | M  +        +     M              +     +           +              M      |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | +  +        +     M              +     M           +              M      |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  30                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 3| 5| 5| 3| 3| 7| 1| 7| 6| 3| 1| 1| 6| 5| 7| 7| 1| 5| 0| 6| 7| 1| 3| 0| 5|             
                             DAY ON TEST   | 6| 4| 4| 6| 6| 1| 8| 3| 5| 6| 8| 8| 5| 4| 3| 3| 8| 4| 1| 7| 3| 8| 6| 0| 2|             
                                           | 9| 9| 9| 8| 9| 7| 5| 2| 9| 8| 5| 6| 5| 9| 2| 2| 6| 9| 7| 8| 2| 7| 9| 4| 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                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1|             
                               ANIMAL ID   | 1| 1| 2| 2| 2| 2| 2| 2| 4| 4| 4| 5| 5| 5| 7| 7| 8| 8| 8| 8| 8| 1| 1| 1| 1|             
    6 MG/M3                                | 7| 8| 1| 3| 5| 6| 7| 8| 6| 8| 9| 1| 7| 9| 7| 9| 0| 2| 4| 6| 8| 0| 2| 3| 4|             
    LUNG TOX                               | 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               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                        +                                 |             
                                            __________________________________________________________________________|             
   Eye                                     |                   +                                                      |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +        +     +              +     +           +              +      |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +        +     +              +     +           +              +      |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  31                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 6| 4| 6| 5| 1| 3| 1| 5| 3| 7| 3| 7| 5| 1|                             |            |
                             DAY ON TEST   | 4| 9| 5| 1| 5| 8| 6| 8| 4| 6| 3| 6| 3| 5| 8|                             |            |
                                           | 9| 7| 3| 7| 0| 7| 9| 7| 9| 9| 2| 9| 2| 0| 7|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE FEMALE                      | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |     T      |
                               ANIMAL ID   | 1| 1| 3| 4| 4| 4| 4| 4| 5| 6| 7| 7| 7| 7| 7|                             |     A      |
    6 MG/M3                                | 6| 9| 7| 1| 2| 3| 6| 9| 0| 7| 0| 3| 4| 7| 9|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             |                +     +  +  M                                             |  10        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Liver                                   |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Pancreas                                |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Stomach                                 |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      |                +     +  +  +                                             |  12        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   |                M     +  +  +                                             |  11        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  |                I     +  +  +                                             |  10        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       |                M     M  +  M                                             |   3        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         |                M     M  +  +                                             |   8        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           |                M     M  +  +                                             |   9        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |                            +                                             |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   |                +     +  +  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Uterus                                  |                +     +  +  +                                             |  12        |
      Endometrium, Polyp                   |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             |                +     +  +  +                                             |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  32                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 6| 4| 6| 5| 1| 3| 1| 5| 3| 7| 3| 7| 5| 1|                             |            |
                             DAY ON TEST   | 4| 9| 5| 1| 5| 8| 6| 8| 4| 6| 3| 6| 3| 5| 8|                             |            |
                                           | 9| 7| 3| 7| 0| 7| 9| 7| 9| 9| 2| 9| 2| 0| 7|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE FEMALE                      | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |     T      |
                               ANIMAL ID   | 1| 1| 3| 4| 4| 4| 4| 4| 5| 6| 7| 7| 7| 7| 7|                             |     A      |
    6 MG/M3                                | 6| 9| 7| 1| 2| 3| 6| 9| 0| 7| 0| 3| 4| 7| 9|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   |                M     M  +  M                                             |   6        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  |                +     +  M  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 |                M     M  M  M                                             |   5        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  |                +     +  M  +                                             |  11        |
                                            __________________________________________________________________________|____________|
   Spleen                                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Thymus                                  |                +     +  +  +                                             |  12        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Skin                                    |                +     +  +  +                                             |  12        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    |                +     +  +  +                                             |  12        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   |                +     +  +  +                                             |  12        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Lung                                    |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Nose                                    |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Trachea                                 |                M     +  +  +                                             |  11        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                +                                                         |   2        |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  |                +     +  +  +                                             |  12        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         |                +     +  +  +                                             |  12        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |                +     +  +  +                                             |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  33                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 1| 7| 0| 0| 4| 3| 1| 7| 3| 5| 3| 7| 5| 1| 2| 3| 5| 1| 5| 1| 5| 7| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 9| 6| 8| 3| 6| 4| 6| 3| 0| 8| 8| 6| 4| 8| 4| 8| 4| 3| 3|             
                                           | 8| 8| 4| 2| 8| 8| 5| 9| 6| 2| 8| 6| 9| 2| 8| 5| 6| 8| 9| 7| 9| 5| 9| 2| 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                      | 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 9| 9| 0| 0| 0| 0| 2| 3| 3| 3| 3| 3| 5| 5| 6| 6| 6| 6| 6| 6| 8| 9| 9| 9|             
    18 MG/M3                               | 7| 8| 9| 0| 5| 8| 9| 6| 0| 1| 3| 5| 7| 7| 8| 2| 3| 4| 5| 8| 9| 7| 1| 3| 5|             
    LUNG TOX                               | 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              +        +              +            |             
                                            __________________________________________________________________________|             
   Gallbladder                             |                      M              M        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Large                         |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Small                         |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Liver                                   |                      +              +        +              +            |             
      Hepatocellular Adenoma               |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Salivary Glands                         |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Stomach                                 |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |                      +              I        +              +            |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |                      M              +        +              +            |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |                      M              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                      +              +                                    |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Uterus                                  |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Lymph Node                              |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 |                      I              M        M              M            |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  34                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 0| 0| 1| 7| 0| 0| 4| 3| 1| 7| 3| 5| 3| 7| 5| 1| 2| 3| 5| 1| 5| 1| 5| 7| 7|             
                             DAY ON TEST   | 2| 2| 1| 2| 2| 2| 9| 6| 8| 3| 6| 4| 6| 3| 0| 8| 8| 6| 4| 8| 4| 8| 4| 3| 3|             
                                           | 8| 8| 4| 2| 8| 8| 5| 9| 6| 2| 8| 6| 9| 2| 8| 5| 6| 8| 9| 7| 9| 5| 9| 2| 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                      | 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 9| 9| 9| 0| 0| 0| 0| 2| 3| 3| 3| 3| 3| 5| 5| 6| 6| 6| 6| 6| 6| 8| 9| 9| 9|             
    18 MG/M3                               | 7| 8| 9| 0| 5| 8| 9| 6| 0| 1| 3| 5| 7| 7| 8| 2| 3| 4| 5| 8| 9| 7| 1| 3| 5|             
    LUNG TOX                               | 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               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Thymus                                  |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Skin                                    |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Lung                                    |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Nose                                    |                      +              +        +              +            |             
                                            __________________________________________________________________________|             
   Trachea                                 |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |                      +              +        +              +            |             
      Transitional Epithelium, Papilloma   |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |                      +              +        +              +            |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  35                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 1| 3| 1| 1| 5| 5| 5| 3| 5| 6| 1| 3| 7| 5| 3|                             |            |
                             DAY ON TEST   | 8| 6| 8| 8| 4| 4| 5| 6| 4| 0| 8| 6| 3| 5| 6|                             |            |
                                           | 6| 9| 7| 7| 9| 9| 0| 9| 9| 4| 7| 9| 2| 0| 9|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE FEMALE                      | 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                             |     T      |
                               ANIMAL ID   | 9| 0| 1| 2| 2| 2| 2| 2| 3| 4| 4| 5| 5| 5| 5|                             |     A      |
    18 MG/M3                               | 7| 0| 8| 0| 1| 3| 5| 7| 0| 7| 8| 0| 1| 6| 7|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +        +        M                                       |  10        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | M  +  +  +  +  +        +        +                                       |   9        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  M  +  +  +  +        +        +                                       |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +        +        +                                       |  12        |
      Hepatocellular Adenoma               |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | M  +  +  +  +  +        +        +                                       |  11        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +        +        +                                       |  11        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  M  M  +  M  +        +        +                                       |   8        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +        +        +                                       |  11        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |    +                             +                                       |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +        A        +                                       |  11        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  36                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 1| 3| 1| 1| 5| 5| 5| 3| 5| 6| 1| 3| 7| 5| 3|                             |            |
                             DAY ON TEST   | 8| 6| 8| 8| 4| 4| 5| 6| 4| 0| 8| 6| 3| 5| 6|                             |            |
                                           | 6| 9| 7| 7| 9| 9| 0| 9| 9| 4| 7| 9| 2| 0| 9|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE FEMALE                      | 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                             |     T      |
                               ANIMAL ID   | 9| 0| 1| 2| 2| 2| 2| 2| 3| 4| 4| 5| 5| 5| 5|                             |     A      |
    18 MG/M3                               | 7| 0| 8| 0| 1| 3| 5| 7| 0| 7| 8| 0| 1| 6| 7|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | I  +  +  +  +  +        +        +                                       |  11        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  M        +        +                                       |  11        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | M  M  M  M  M  M        M        M                                       |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +     M        +        +                                       |  10        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +        +        +                                       |  12        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +        +        +                                       |  12        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +        +        +                                       |  12        |
      Transitional Epithelium, Papilloma   |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +        +        +                                       |  12        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +        +        +                                       |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  37                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 5| 4| 7| 4| 7| 7| 5| 0| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 0|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 1| 8| 3| 3| 3| 4| 8| 2| 3| 3| 3| 7| 3| 3| 3| 4| 4| 3| 3| 0|             
                                           | 6| 6| 6| 6| 6| 8| 6| 6| 2| 6| 0| 5| 0| 7| 7| 7| 1| 7| 7| 7| 0| 0| 8| 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 MALE                        | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 6| 6| 6| 7| 7| 7| 7| 7| 9| 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3|             
    CONTROL                                | 1| 4| 7| 0| 1| 2| 4| 5| 1| 2| 3| 5| 6| 8| 2| 3| 5| 1| 3| 4| 6| 7| 1| 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                               | +  +  +  +  +  +  +  +  M  +  +  M     +  +  +  +  +  +  +  +  +  +  +  M|             
                                            __________________________________________________________________________|             
   Gallbladder                             | M  +  M  +  +  A  A  +  M  +  +  +     +  +  M  A  +  +  +  +  +  +  +  M|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  A  A  +  A  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  A  A  +  +  +  +  +     +  +  +  A  +  +  M  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Hemangiosarcoma                      |                                                                          |             
      Hemangiosarcoma, Metastatic, Spleen  |                                                                   X      |             
      Hepatocellular Carcinoma             | X  X                                            X                        |             
      Hepatocellular Adenoma               |                                                                          |             
      Hepatocellular Adenoma, Multiple     |                                                    X                     |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  A  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  M|             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  I     +  +  +  +  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  M  A  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | I  +  +  +  +  +  M  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Spindle Cell, Adenoma                |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | I  +  +  +  +  +  M  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | M  +  +  +  +  M  M  M  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Pheochromocytoma Malignant           |                                                                X         |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  M  +  M  +  +  I  M     +  +  +  A  +  M  I  +  +  I  +  M|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  M  M  +  M  M  M  M  +  M  +     +  M  +  +  +  +  M  M  M  +  +  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  I  +     +  +  +  +  +  +  +  +  +  +  +  M|             
      Adenoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  38                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 5| 4| 7| 4| 7| 7| 5| 0| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 0|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 1| 8| 3| 3| 3| 4| 8| 2| 3| 3| 3| 7| 3| 3| 3| 4| 4| 3| 3| 0|             
                                           | 6| 6| 6| 6| 6| 8| 6| 6| 2| 6| 0| 5| 0| 7| 7| 7| 1| 7| 7| 7| 0| 0| 8| 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 MALE                        | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 6| 6| 6| 7| 7| 7| 7| 7| 9| 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3|             
    CONTROL                                | 1| 4| 7| 0| 1| 2| 4| 5| 1| 2| 3| 5| 6| 8| 2| 3| 5| 1| 3| 4| 6| 7| 1| 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                   |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  M  +  +  M  +  +  I  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +                                                                        |             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  I  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  M|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  M  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
      Hemangiosarcoma                      |                               X                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  A  +  +  +  +  +  A     +  +  +  A  +  +  +  +  +  +  +  A|             
      Hemangiosarcoma, Metastatic, Spleen  |                                                                   X      |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  M|             
      Iliac, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Pancreatic, Lymphoma Malignant       |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
      Renal, Lymphoma Malignant            |                                                                          |             
          Undifferentiated Cell Type       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | +  +  +  +  +  +  +  +  M  I  +  +     +  M  +  +  +  +  +  +  M  M  +  M|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | M  +  M  M  +  M  +  +  M  M  M  M     +  M  M  M  +  +  +  +  M  +  +  M|             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | M  M  M  M  M  M  I  +  M  M  +  +     M  M  M  M  +  M  M  M  M  M  M  M|             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  I  M  +  M  +  +  +  +     +  +  +  M  +  +  +  +  +  +  +  M|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Hemangiosarcoma                      |                                                                   X  X   |             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | M  +  +  +  +  M  +  +  I  I  +  M     +  +  +  A  +  +  +  +  +  +  +  M|             
      Lymphoma Malignant Mixed             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | M  M  M  M  M  M  M  M  M  M  +  +     M  M  M  +  M  M  M  M  +  M  M  M|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  39                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 5| 4| 7| 4| 7| 7| 5| 0| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 0|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 1| 8| 3| 3| 3| 4| 8| 2| 3| 3| 3| 7| 3| 3| 3| 4| 4| 3| 3| 0|             
                                           | 6| 6| 6| 6| 6| 8| 6| 6| 2| 6| 0| 5| 0| 7| 7| 7| 1| 7| 7| 7| 0| 0| 8| 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 MALE                        | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 6| 6| 6| 7| 7| 7| 7| 7| 9| 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3|             
    CONTROL                                | 1| 4| 7| 0| 1| 2| 4| 5| 1| 2| 3| 5| 6| 8| 2| 3| 5| 1| 3| 4| 6| 7| 1| 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               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  +  +  I  +  +  +  +  +  I  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Alveolar/Bronchiolar Adenoma         |       X                                      X     X     X               |             
      Alveolar/Bronchiolar Carcinoma       |                            X              X  X              X            |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Multiple                         |    X                                                                     |             
      Hemangiosarcoma, Metastatic, Liver   |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +     +  M  +  +  +  +  +  +  +  +  +  A|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |                               +                                          |             
      Adenoma                              |                               X                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  A|             
      Carcinoma, Metastatic, Uncertain     |                                                                          |             
          Primary Site                     |                                                                          |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  A|             
      Sarcoma                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +|             
      Lymphoma Malignant Mixed             |                                                                          |             
      Lymphoma Malignant Undifferentiated  |                                                                          |             
          Cell Type                        |                                           X                              |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  40                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 6| 7| 4| 7| 7| 7| 7| 7| 5| 7| 6| 5| 4| 7| 5| 7| 5| 7| 7| 6| 6|  |            |
                             DAY ON TEST   | 3| 3| 3| 8| 3| 2| 3| 4| 4| 3| 3| 8| 3| 7| 4| 8| 3| 7| 1| 8| 4| 4| 2| 9|  |            |
                                           | 8| 8| 7| 4| 8| 3| 8| 0| 0| 9| 9| 7| 9| 7| 3| 4| 9| 9| 0| 7| 0| 0| 9| 1|  |            |
 _____________________________________________________________________________________________________________________|     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                        | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 5| 5| 6| 6| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 2| 2| 2| 2|  |     A      |
    CONTROL                                | 1| 2| 4| 5| 8| 3| 4| 2| 4| 5| 8| 9| 2| 3| 4| 2| 3| 5| 7| 8| 0| 1| 3| 5|  |     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                               | +  +  +  +  +     +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +  +      |  41        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  M  +  +     +  +  +  +  +  +  +  +  A  M  +  M  A  A  +  +  A      |  31        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  A  +  +     +  +  +  +  +  +  +  +  A  A  +  A  A  A  +  +  +      |  36        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  A  +  +     +  +  +  +  +  A  +  +  A  A  +  A  A  A  +  +  A      |  34        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  A  +  +     +  +  +  +  +  +  +  +  A  A  +  A  A  A  +  +  +      |  36        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | I  +  A  +  +     +  +  +  +  +  A  +  M  A  A  +  A  A  A  +  +  M      |  32        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  A  +  +     +  +  +  +  +  A  +  +  A  A  +  A  A  A  +  +  A      |  34        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  A  +  +     +  +  +  M  +  A  +  +  A  A  +  A  A  A  +  +  A      |  32        |
      Lymphoma Malignant Mixed             |                                                 X                        |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                               X                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  A  +  +     +  +  +  +  +  A  +  A  A  A  +  A  A  A  +  +  A      |  33        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  A  +  +     +  +  +  +  +  A  +  A  A  A  +  A  A  A  +  +  A      |  32        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
      Hemangiosarcoma                      |                                                       X                  |          1 |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
      Hepatocellular Carcinoma             |                                                    X  X  X               |          6 |
      Hepatocellular Adenoma               |                               X                                          |          1 |
      Hepatocellular Adenoma, Multiple     |                   X                                                      |          2 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +      |  42        |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                          X               |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M      |  43        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  A  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  I  +      |  39        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  43        |
      Spindle Cell, Adenoma                |                         X                                                |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  43        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  M  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I      |  39        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 6| 7| 4| 7| 7| 7| 7| 7| 5| 7| 6| 5| 4| 7| 5| 7| 5| 7| 7| 6| 6|  |            |
                             DAY ON TEST   | 3| 3| 3| 8| 3| 2| 3| 4| 4| 3| 3| 8| 3| 7| 4| 8| 3| 7| 1| 8| 4| 4| 2| 9|  |            |
                                           | 8| 8| 7| 4| 8| 3| 8| 0| 0| 9| 9| 7| 9| 7| 3| 4| 9| 9| 0| 7| 0| 0| 9| 1|  |            |
 _____________________________________________________________________________________________________________________|     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                        | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 5| 5| 6| 6| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 2| 2| 2| 2|  |     A      |
    CONTROL                                | 1| 2| 4| 5| 8| 3| 4| 2| 4| 5| 8| 9| 2| 3| 4| 2| 3| 5| 7| 8| 0| 1| 3| 5|  |     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                   |                                                                          |            |
                                           |                                                                          |            |
      Pheochromocytoma Malignant           |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  I  M  +     M  I  +  I  I  +  M  I  +  +  +  +  I  A  M  +  +      |  26        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  M  M  +  M     +  +  +  +  +  +  M  M  M  +  M  +  +  +  +  M  +      |  25        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  44        |
      Adenoma                              |                                                          X               |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  M  +     +  M  +  +  +  +  M  +  +  M  +  +  +  +  +  +  +      |  39        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         |       +              +  +        +     +                 +  +            |   8        |
                                            __________________________________________________________________________|____________|
   Prostate                                | M  +  M  I  +     +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +      |  40        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  A  +  +  A  A  +  +  A      |  41        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +      |  43        |
      Hemangiosarcoma                      |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  A  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +      |  40        |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
      Iliac, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       | X                                                                        |          1 |
      Pancreatic, Lymphoma Malignant       |                                                                          |            |
          Undifferentiated Cell Type       | X                                                                        |          1 |
      Renal, Lymphoma Malignant            |                                                                          |            |
          Undifferentiated Cell Type       | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  +  +     +  +  +  +  M  +  +  +  M  I  M  +  +  I  M  M  I      |  32        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  M  M  +     +  M  +  +  +  M  +  +  +  M  M  M  M  M  +  +  M      |  23        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +  +  M  M  M     M  M  M  M  +  M  M  M  +  M  M  M  M  M  +  M  M      |   9        |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  A  +  +     +  +  +  I  +  M  +  +  +  M  +  +  +  A  +  +  +      |  36        |
      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  42                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 6| 7| 4| 7| 7| 7| 7| 7| 5| 7| 6| 5| 4| 7| 5| 7| 5| 7| 7| 6| 6|  |            |
                             DAY ON TEST   | 3| 3| 3| 8| 3| 2| 3| 4| 4| 3| 3| 8| 3| 7| 4| 8| 3| 7| 1| 8| 4| 4| 2| 9|  |            |
                                           | 8| 8| 7| 4| 8| 3| 8| 0| 0| 9| 9| 7| 9| 7| 3| 4| 9| 9| 0| 7| 0| 0| 9| 1|  |            |
 _____________________________________________________________________________________________________________________|     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                        | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 5| 5| 6| 6| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 2| 2| 2| 2|  |     A      |
    CONTROL                                | 1| 2| 4| 5| 8| 3| 4| 2| 4| 5| 8| 9| 2| 3| 4| 2| 3| 5| 7| 8| 0| 1| 3| 5|  |     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               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +     +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +      |  44        |
      Hemangiosarcoma                      |                                                                          |          2 |
      Lymphoma Malignant Mixed             |                                                 X                        |          1 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | I  +  M  +  +     +  +  +  +  +  +  +  I  M  M  +  +  +  +  +  +  +      |  34        |
      Lymphoma Malignant Mixed             |    X                                                                     |          1 |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | M  M  M  M  M     +  M  I  M  M  M  M  M  M  M  M  M  M  I  M  M  M      |   5        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  I  +  +  +     +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +      |  44        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  46        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  46        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  42        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
      Alveolar/Bronchiolar Adenoma         |    X        X                                                            |          6 |
      Alveolar/Bronchiolar Carcinoma       |                      X                                         X         |          6 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Multiple                         |                                                                          |          1 |
      Hemangiosarcoma, Metastatic, Liver   |                                                       X                  |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  A  +  +     +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +      |  42        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                      +                                                   |   1        |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |                                                                          |   1        |
      Adenoma                              |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  45        |
      Carcinoma, Metastatic, Uncertain     |                                                                          |            |
          Primary Site                     |                                                    X                     |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +      |  43        |
      Sarcoma                              |                                                          X               |          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +      |  46        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  43                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 6| 7| 4| 7| 7| 7| 7| 7| 5| 7| 6| 5| 4| 7| 5| 7| 5| 7| 7| 6| 6|  |            |
                             DAY ON TEST   | 3| 3| 3| 8| 3| 2| 3| 4| 4| 3| 3| 8| 3| 7| 4| 8| 3| 7| 1| 8| 4| 4| 2| 9|  |            |
                                           | 8| 8| 7| 4| 8| 3| 8| 0| 0| 9| 9| 7| 9| 7| 3| 4| 9| 9| 0| 7| 0| 0| 9| 1|  |            |
 _____________________________________________________________________________________________________________________|     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                        | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5|  |     T      |
                               ANIMAL ID   | 5| 5| 5| 5| 5| 6| 6| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 2| 2| 2| 2|  |     A      |
    CONTROL                                | 1| 2| 4| 5| 8| 3| 4| 2| 4| 5| 8| 9| 2| 3| 4| 2| 3| 5| 7| 8| 0| 1| 3| 5|  |     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|  |            |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS - cont                   |                                                                          |            |
                                           |                                                                          |            |
      Lymphoma Malignant Mixed             |    X                                            X                        |          2 |
      Lymphoma Malignant Undifferentiated  |                                                                          |            |
          Cell Type                        | X                             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  44                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 7| 7| 7| 7| 7| 7| 2| 7| 6| 5| 6| 3| 6| 7| 7| 7| 3| 7| 7| 6| 0|             
                             DAY ON TEST   | 3| 3| 3| 2| 3| 3| 3| 1| 4| 3| 5| 3| 3| 5| 2| 4| 8| 3| 3| 3| 2| 3| 3| 2| 6|             
                                           | 6| 6| 6| 3| 6| 6| 6| 0| 0| 7| 3| 7| 3| 8| 4| 4| 8| 7| 7| 7| 0| 7| 7| 6| 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                        | 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| 1| 1| 1| 3| 3| 3| 3| 3| 4| 4| 4| 6| 6| 6| 6| 6| 7| 7| 7| 7|             
    6 MG/M3                                | 1| 4| 5| 7| 8| 0| 4| 5| 2| 3| 5| 6| 8| 0| 1| 2| 1| 4| 5| 6| 8| 1| 2| 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                               | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Gallbladder                             | +  +  +  M  +  +  +  A  +  +  A  +  A  A  +  I  +  +  +  I     +  +  I   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  A  +  +  +  +  +  +  A  +  A  A  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  A  +  +  +  A  +  +  A  +  A  A  +  +  +  +  +  +     +  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  A  +  +  +  +  +  +  A  +  A  A  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  A  +  +  +  +  +  +  A  I  A  M  +  +  +  +  +  +     M  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Small                         | +  +  +  A  +  +  +  A  +  +  A  +  A  A  +  +  +  +  +  +     +  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  A  M  +  +  A  +  M  A  +  A  A  +  +  +  +  +  +     +  +  A   |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  A  +  +  +  A  +  +  A  +  A  A  +  A  +  +  +  +     +  +  A   |             
      Adenocarcinoma                       |                                                       X                  |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  A  +  +  +  A  +  +  A  +  A  A  +  +  +  +  M  +     +  +  A   |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Hepatocellular Carcinoma             |                   X                 X  X                                 |             
      Hepatocellular Adenoma               |       X        X     X              X                             X      |             
      Hepatocellular Adenoma, Multiple     |                                                                          |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  A  +  +  +  +  +  +  M  +  M  M  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  A  +  +  +  +  +  +  +  +  A  A  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  A  +  +  +  +  +  +  +  +  A  A  +  +  +  +  +  +     +  +  I   |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  A  +  +  +  +  +  +  +  +  A  A  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Tooth                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Spindle Cell, Adenoma                |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Adenoma                              |                                                                          |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | M  M  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  I   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  M  +  A  M  I  M  +  M  +  M  I  M  M  +  M  M  +  I  +     I  +  +   |             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | M  +  M  +  M  M  M  +  +  M  M  +  M  M  +  M  +  +  I  M     I  M  +   |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +     +  +  +   |             
      Pars Intermedia, Adenoma             |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  45                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 7| 7| 7| 7| 7| 7| 2| 7| 6| 5| 6| 3| 6| 7| 7| 7| 3| 7| 7| 6| 0|             
                             DAY ON TEST   | 3| 3| 3| 2| 3| 3| 3| 1| 4| 3| 5| 3| 3| 5| 2| 4| 8| 3| 3| 3| 2| 3| 3| 2| 6|             
                                           | 6| 6| 6| 3| 6| 6| 6| 0| 0| 7| 3| 7| 3| 8| 4| 4| 8| 7| 7| 7| 0| 7| 7| 6| 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                        | 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| 1| 1| 1| 3| 3| 3| 3| 3| 4| 4| 4| 6| 6| 6| 6| 6| 7| 7| 7| 7|             
    6 MG/M3                                | 1| 4| 5| 7| 8| 0| 4| 5| 2| 3| 5| 6| 8| 0| 1| 2| 1| 4| 5| 6| 8| 1| 2| 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|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM - cont                |                                                                          |             
                                           |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                               +              +                           |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  M  +  +  I  +  A  +  +  +  +  +  +  +  +  +     M  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Preputial Gland                         |       +                                      +                           |             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  A  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | +  +  M  +  +  +  +  +  +  +  +  +  +  I  +  +  M  M  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  M  M  M  M  +  M  +  +  +  M  +  M  +  +  +  M  M  +  M     M  M  M   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | +  M  M  M  M  M  M  M  +  M  M  +  M  M  M  M  M  M  M  +     M  M  M   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  M  M  +  +  +  M  +  +  M  +  M  +  +  M  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  A  +  +  A  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  M  +  +  +  +  +  +  A  +  M  +  M  M  M  I  +  +     +  M  +   |             
      Lymphoma Malignant Lymphocytic       | 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   |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  I  +  M  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  I  +  A  +  +  +  +  +  +  A  +  A  A  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Alveolar/Bronchiolar Adenoma         | X                 X                                            X         |             
      Alveolar/Bronchiolar Carcinoma       |                                        X                                 |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  46                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 7| 7| 7| 7| 7| 7| 2| 7| 6| 5| 6| 3| 6| 7| 7| 7| 3| 7| 7| 6| 0|             
                             DAY ON TEST   | 3| 3| 3| 2| 3| 3| 3| 1| 4| 3| 5| 3| 3| 5| 2| 4| 8| 3| 3| 3| 2| 3| 3| 2| 6|             
                                           | 6| 6| 6| 3| 6| 6| 6| 0| 0| 7| 3| 7| 3| 8| 4| 4| 8| 7| 7| 7| 0| 7| 7| 6| 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                        | 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| 1| 1| 1| 3| 3| 3| 3| 3| 4| 4| 4| 6| 6| 6| 6| 6| 7| 7| 7| 7|             
    6 MG/M3                                | 1| 4| 5| 7| 8| 0| 4| 5| 2| 3| 5| 6| 8| 0| 1| 2| 1| 4| 5| 6| 8| 1| 2| 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                 |                                                                          |             
                                           |                                                                          |             
           Liver                           |                                                                          |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  A  I  +  +  +  +  +  +     +  +  +   |             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  A  +  +  +  A  +  +  A  +  A  A  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +   |             
      Lymphoma Malignant Lymphocytic       | X                                                                        |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  47                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 7| 5| 7| 7| 7| 5| 7| 2| 7| 5| 7| 7| 5| 6| 7| 7| 5|  |            |
                             DAY ON TEST   | 4| 3| 3| 3| 3| 8| 3| 3| 4| 4| 4| 3| 9| 2| 5| 3| 8| 1| 3| 9| 8| 4| 4| 5|  |            |
                                           | 0| 8| 8| 8| 8| 5| 8| 8| 6| 0| 0| 9| 1| 2| 3| 9| 4| 9| 9| 0| 1| 0| 0| 0|  |            |
 _____________________________________________________________________________________________________________________|     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| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3| 5| 5| 5| 5| 5| 5| 6| 6|  |     A      |
    6 MG/M3                                | 2| 3| 5| 6| 9| 0| 1| 5| 1| 4| 5| 7| 9| 2| 3| 5| 1| 4| 5| 6| 7| 8| 2| 4|  |     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                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  A  +  M  A  +  +  +  A  M  M  +  A  A  +  +  A  +  +  A   |  29        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  +  +  +  A  +  +  A  +  +  +  A  +  +  +  A  +  +  +  +  +  +  A   |  38        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  A  +  +  A  +  +  +  A  +  A  +  A  +  +  +  +  +  +  A   |  35        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  A  +  +  A  +  +  +  A  +  +  +  A  +  +  +  +  +  +  A   |  38        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | M  +  +  +  +  A  +  +  A  +  +  +  A  +  +  +  A  M  +  +  +  +  M  A   |  32        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  +  +  +  A  +  +  A  +  +  +  A  A  A  +  A  +  +  +  +  +  +  A   |  34        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  A  +  +  A  +  +  +  A  A  A  +  A  +  +  A  A  +  +  A   |  30        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  A  +  +  A  +  +  +  A  A  A  +  A  +  +  +  A  +  +  A   |  32        |
      Adenocarcinoma                       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  A  +  +  A  +  +  +  A  A  A  +  A  A  +  +  +  M  +  A   |  31        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  47        |
      Hepatocellular Carcinoma             |                         X                          X                     |          5 |
      Hepatocellular Adenoma               | X                          X  X                                          |          8 |
      Hepatocellular Adenoma, Multiple     |                                  X                                       |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | I  +  +  +  +  +  +  +  M  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A   |  39        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  43        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  A   |  41        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  43        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Tooth                                   |                      +     +              +                              |   3        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
      Spindle Cell, Adenoma                |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
      Adenoma                              |       X                                                                  |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  I  +  +  M  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +   |  39        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | I  I  I  M  I  I  I  I  M  +  I  +  +  +  A  +  M  +  +  +  +  +  +  A   |  20        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  48                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 7| 5| 7| 7| 7| 5| 7| 2| 7| 5| 7| 7| 5| 6| 7| 7| 5|  |            |
                             DAY ON TEST   | 4| 3| 3| 3| 3| 8| 3| 3| 4| 4| 4| 3| 9| 2| 5| 3| 8| 1| 3| 9| 8| 4| 4| 5|  |            |
                                           | 0| 8| 8| 8| 8| 5| 8| 8| 6| 0| 0| 9| 1| 2| 3| 9| 4| 9| 9| 0| 1| 0| 0| 0|  |            |
 _____________________________________________________________________________________________________________________|     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| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3| 5| 5| 5| 5| 5| 5| 6| 6|  |     A      |
    6 MG/M3                                | 2| 3| 5| 6| 9| 0| 1| 5| 1| 4| 5| 7| 9| 2| 3| 5| 1| 4| 5| 6| 7| 8| 2| 4|  |     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                   |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | M  +  M  +  +  +  M  M  +  +  +  +  M  M  M  +  M  +  M  M  M  +  +  I   |  21        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +   |  44        |
      Pars Intermedia, Adenoma             |                   X                                         X            |          2 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +   |  46        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |                                           +                              |   3        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  I  A  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  I  +  +   |  39        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +                                   +     +           +                  |   6        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  43        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  43        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  44        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +  A  +  +  A  +  +  +  A   |  42        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  46        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  +  M  +  +  +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  M  +   |  39        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | M  +  M  +  M  +  +  +  M  +  +  +  M  +  M  M  +  +  M  +  M  M  M  +   |  23        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | M  M  M  +  M  M  M  +  M  M  M  M  +  +  M  M  M  M  M  M  M  M  +  +   |  10        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M   |  39        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  44        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  I  +  +  I  +  +  +  +  +  M  +  +  M  +  I  +  +  +  +  +  I  +   |  33        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 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  A   |   5        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  45        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  47        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  49                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 7| 5| 7| 7| 7| 5| 7| 2| 7| 5| 7| 7| 5| 6| 7| 7| 5|  |            |
                             DAY ON TEST   | 4| 3| 3| 3| 3| 8| 3| 3| 4| 4| 4| 3| 9| 2| 5| 3| 8| 1| 3| 9| 8| 4| 4| 5|  |            |
                                           | 0| 8| 8| 8| 8| 5| 8| 8| 6| 0| 0| 9| 1| 2| 3| 9| 4| 9| 9| 0| 1| 0| 0| 0|  |            |
 _____________________________________________________________________________________________________________________|     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| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|  |     T      |
                               ANIMAL ID   | 9| 9| 9| 9| 9| 0| 0| 0| 2| 2| 2| 2| 2| 3| 3| 3| 5| 5| 5| 5| 5| 5| 6| 6|  |     A      |
    6 MG/M3                                | 2| 3| 5| 6| 9| 0| 1| 5| 1| 4| 5| 7| 9| 2| 3| 5| 1| 4| 5| 6| 7| 8| 2| 4|  |     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|  |            |
 __________________________________________________________________________________________________________________________________ 
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  47        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  41        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  47        |
      Alveolar/Bronchiolar Adenoma         |                   X                                                      |          4 |
      Alveolar/Bronchiolar Carcinoma       |                   X                                                      |          2 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |                                                    X                     |          1 |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  46        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  43        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A   |  46        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | M  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  A   |  38        |
      Lymphoma Malignant Lymphocytic       |                                                                          |          1 |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +   |  47        |
      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  50                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 5| 4| 0| 7| 7| 7| 1| 7| 7| 7| 7| 7| 4| 4| 7| 7| 6| 7| 7| 5| 7| 7| 7|             
                             DAY ON TEST   | 1| 3| 3| 3| 2| 3| 3| 3| 1| 3| 3| 3| 2| 4| 7| 5| 3| 3| 7| 3| 3| 5| 3| 3| 3|             
                                           | 4| 6| 8| 8| 8| 6| 6| 6| 5| 6| 6| 6| 4| 0| 8| 7| 7| 7| 2| 7| 7| 4| 7| 7| 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| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 1| 2| 2| 2| 4| 4| 4| 4| 5| 5| 5|             
    18 MG/M3                               | 3| 4| 5| 6| 7| 9| 2| 3| 5| 1| 3| 4| 5| 7| 9| 1| 3| 4| 1| 2| 8| 9| 0| 1| 2|             
                                           | 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  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             | A  +  +  A  M  +  +  +  A  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         | +  +  +  +  A  +  +  +  +  +  +  +  A  +  A  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  A  A  +  +  +  +  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  A  +  +  +  +  +  +  +  A  +  A  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  I  M  A  M  +  +  M  +  +  +  A  +  M  +  M  I  +  +  +  A  +  +  M|             
                                            __________________________________________________________________________|             
   Intestine Small                         | A  +  +  A  A  +  +  +  +  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | A  +  M  M  A  +  +  +  +  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | A  +  +  A  A  +  +  +  A  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | A  +  +  A  A  +  +  +  +  +  +  +  A  +  A  +  +  +  A  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma                      |                               X                                          |             
      Hepatocellular Carcinoma             |       X  X           X                       X              X  X  X      |             
      Hepatocellular Adenoma               |                X  X                                   X                  |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  M  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
      Spindle Cell, Adenoma                |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
      Adenoma                              |                                        X                                 |             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  | +  +  M  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | I  I  M  +  I  I  I  M  +  +  I  I  +  I  +  +  +  I  +  +  +  A  +  +  M|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  I  M  +  +  I  M  +  M  +  M  +  +  +  M  +  +  +  +  +  A  M  +  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
      Follicular Cell, Adenoma             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                                     +                                    |             
      Hemangioma                           |                                                                          |             
      Hemangiosarcoma, Metastatic, Spleen  |                                     X                                    |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  51                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 5| 4| 0| 7| 7| 7| 1| 7| 7| 7| 7| 7| 4| 4| 7| 7| 6| 7| 7| 5| 7| 7| 7|             
                             DAY ON TEST   | 1| 3| 3| 3| 2| 3| 3| 3| 1| 3| 3| 3| 2| 4| 7| 5| 3| 3| 7| 3| 3| 5| 3| 3| 3|             
                                           | 4| 6| 8| 8| 8| 6| 6| 6| 5| 6| 6| 6| 4| 0| 8| 7| 7| 7| 2| 7| 7| 4| 7| 7| 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| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 1| 2| 2| 2| 4| 4| 4| 4| 5| 5| 5|             
    18 MG/M3                               | 3| 4| 5| 6| 7| 9| 2| 3| 5| 1| 3| 4| 5| 7| 9| 1| 3| 4| 1| 2| 8| 9| 0| 1| 2|             
                                           | 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                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +                       +                    +                       +   |             
                                            __________________________________________________________________________|             
   Prostate                                | M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |          X                                                               |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | I  +  +  M  M  +  +  M  I  M  M  M  +  M  M  +  +  M  M  I  M  M  +  M  +|             
      Hemangiosarcoma, Metastatic, Spleen  |                                     X                                    |             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 | M  +  M  M  M  M  M  M  M  M  M  M  +  M  M  M  +  M  +  M  M  M  M  M  M|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  A  +  +  +|             
      Hemangiosarcoma, Metastatic, Spleen  |                                     X                                    |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
      Hemangiosarcoma                      |                                     X                 X                  |             
                                            __________________________________________________________________________|             
   Thymus                                  | M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  M  +  +  A  +  +  M|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | I  M  +  M  I  M  M  M  M  M  M  M  M  M  +  M  +  M  M  I  M  M  +  +  I|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemangiosarcoma, Metastatic, Spleen  |                                     X                                    |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |          +                                                               |             
      Thoracic, Alveolar/Bronchiolar       |                                                                          |             
          Carcinoma, Metastatic, Lung      |          X                                                               |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Alveolar/Bronchiolar Adenoma         |                X                                      X                  |             
      Alveolar/Bronchiolar Adenoma,        |                                                                          |             
          Multiple                         |    X                                                        X            |             
      Alveolar/Bronchiolar Carcinoma       |          X                                                               |             
      Hemangiosarcoma, Metastatic, Spleen  |                                     X                                    |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  52                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 7| 5| 4| 0| 7| 7| 7| 1| 7| 7| 7| 7| 7| 4| 4| 7| 7| 6| 7| 7| 5| 7| 7| 7|             
                             DAY ON TEST   | 1| 3| 3| 3| 2| 3| 3| 3| 1| 3| 3| 3| 2| 4| 7| 5| 3| 3| 7| 3| 3| 5| 3| 3| 3|             
                                           | 4| 6| 8| 8| 8| 6| 6| 6| 5| 6| 6| 6| 4| 0| 8| 7| 7| 7| 2| 7| 7| 4| 7| 7| 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| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 8| 8| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 1| 1| 2| 2| 2| 4| 4| 4| 4| 5| 5| 5|             
    18 MG/M3                               | 3| 4| 5| 6| 7| 9| 2| 3| 5| 1| 3| 4| 5| 7| 9| 1| 3| 4| 1| 2| 8| 9| 0| 1| 2|             
                                           | 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                 |                                                                          |             
                                           |                                                                          |             
      Hepatocellular Carcinoma, Metastatic,|                                                                          |             
           Liver                           |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  A  +  I  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |                   +                                               +  +   |             
      Adenoma                              |                   X                                               X  X   |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  53                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 6| 7| 6| 7| 4| 7| 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 4| 4| 4| 3| 2| 2| 5| 3| 2| 3| 3| 2| 4| 3| 5| 4| 4| 3| 3| 3| 3| 3| 3| 2| 3|            |
                                           | 0| 0| 1| 8| 2| 1| 8| 8| 2| 8| 8| 5| 0| 8| 9| 0| 0| 9| 9| 9| 9| 9| 9| 7| 9|            |
 _____________________________________________________________________________________________________________________|     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                        | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 5| 5| 7| 7| 8| 8| 8| 8| 8| 0| 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 3| 3| 3| 4| 4|     A      |
    18 MG/M3                               | 3| 5| 7| 9| 1| 2| 3| 4| 5| 3| 4| 6| 7| 8| 0| 1| 3| 2| 3| 4| 7| 8| 9| 3| 5|     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                               | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             | +  I  A  +     +  M  +  M  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  35        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         | +  +  A  +     A  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +|  40        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  37        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  39        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  A  M     A  A  +  A  +  +  +  +  M  +  +  +  +  +  +  +  +  +  A  +|  31        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  36        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  M  +  A  +|  34        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  35        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  A  +     A  A  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +  A  +|  36        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Hemangiosarcoma                      |                                                                          |          1 |
      Hepatocellular Carcinoma             |       X  X        X                          X                           |         11 |
      Hepatocellular Adenoma               |                                              X                           |          4 |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  A  +     A  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
                                            __________________________________________________________________________|____________|
   Stomach                                 | +  +  +  +     +  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +     +  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  A  +     A  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +|  43        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Spindle Cell, Adenoma                |                                                                      X   |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Adenoma                              |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  | +  +  M  +     +  +  M  A  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +|  42        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  A  M     A  A  M  A  M  +  +  I  I  +  I  +  +  +  +  +  I  M  +  +|  24        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  M  M  M     M  +  +  A  M  M  M  M  M  +  M  +  +  M  +  +  +  M  +  +|  26        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +     M  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +     +  +  +  A  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
      Follicular Cell, Adenoma             |    X                                               X                     |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |                                                 +                        |   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  54                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 6| 7| 6| 7| 4| 7| 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 4| 4| 4| 3| 2| 2| 5| 3| 2| 3| 3| 2| 4| 3| 5| 4| 4| 3| 3| 3| 3| 3| 3| 2| 3|            |
                                           | 0| 0| 1| 8| 2| 1| 8| 8| 2| 8| 8| 5| 0| 8| 9| 0| 0| 9| 9| 9| 9| 9| 9| 7| 9|            |
 _____________________________________________________________________________________________________________________|     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                        | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 5| 5| 7| 7| 8| 8| 8| 8| 8| 0| 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 3| 3| 3| 4| 4|     A      |
    18 MG/M3                               | 3| 5| 7| 9| 1| 2| 3| 4| 5| 3| 4| 6| 7| 8| 0| 1| 3| 2| 3| 4| 7| 8| 9| 3| 5|     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|            |
 __________________________________________________________________________________________________________________________________ 
 GENERAL BODY SYSTEM - cont                |                                                                          |            |
                                           |                                                                          |            |
      Hemangioma                           |                                                 X                        |          1 |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +     A  +  +  A  +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  M|  42        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         |                               +           +                    +  +      |   8        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +     +  +  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +|  44        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  I  A  +     A  A  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +|  39        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +     A  M  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  A  +     +  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  43        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   | +  +  +  +     +  +  +  A  +  +  +  +  +  M  +  +  +  +  M  +  +  +  +  +|  44        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  M  M  +     M  M  M  A  M  M  +  M  +  +  M  +  +  M  +  M  M  +  +  M|  19        |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 | +  M  M  +     M  M  M  M  M  M  M  M  M  M  M  M  M  M  M  +  M  M  M  M|   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | I  +  +  +     A  +  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M  M|  40        |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Hemangiosarcoma                      |                                                                          |          2 |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +     +  +  +  M  +  +  +  +  +  M  +  +  +  +  M  +  +  I  +  +|  40        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 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|   8        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +     +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                          |   1        |
      Thoracic, Alveolar/Bronchiolar       |                                                                          |            |
          Carcinoma, Metastatic, Lung      |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS 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  55                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 6| 7| 6| 7| 4| 7| 7| 7| 7| 7| 1| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 4| 4| 4| 3| 2| 2| 5| 3| 2| 3| 3| 2| 4| 3| 5| 4| 4| 3| 3| 3| 3| 3| 3| 2| 3|            |
                                           | 0| 0| 1| 8| 2| 1| 8| 8| 2| 8| 8| 5| 0| 8| 9| 0| 0| 9| 9| 9| 9| 9| 9| 7| 9|            |
 _____________________________________________________________________________________________________________________|     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                        | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|     T      |
                               ANIMAL ID   | 5| 5| 7| 7| 8| 8| 8| 8| 8| 0| 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 3| 3| 3| 4| 4|     A      |
    18 MG/M3                               | 3| 5| 7| 9| 1| 2| 3| 4| 5| 3| 4| 6| 7| 8| 0| 1| 3| 2| 3| 4| 7| 8| 9| 3| 5|     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|            |
 __________________________________________________________________________________________________________________________________ 
 NERVOUS SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  | +  +  +  +     A  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Alveolar/Bronchiolar Adenoma         | X                             X              X                 X        X|          7 |
      Alveolar/Bronchiolar Adenoma,        |                                                                          |            |
          Multiple                         |                                                                          |          2 |
      Alveolar/Bronchiolar Carcinoma       |                                                                      X   |          2 |
      Hemangiosarcoma, Metastatic, Spleen  |                                                                          |          1 |
      Hepatocellular Carcinoma, Metastatic,|                                                                          |            |
           Liver                           |       X           X                                                      |          2 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +     +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +     A  M  M  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  42        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |                                  +                                       |   4        |
      Adenoma                              |                                  X                                       |          4 |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +     A  A  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +|  43        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +     +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 7| 7| 5| 1| 1| 1| 7| 7| 5| 3| 3| 3| 7| 3| 7| 2| 1| 7| 7| 3| 6| 1| 5|             
                             DAY ON TEST   | 3| 4| 1| 3| 4| 8| 8| 8| 3| 3| 4| 6| 6| 6| 3| 6| 3| 9| 8| 3| 3| 6| 1| 8| 4|             
                                           | 9| 9| 5| 9| 9| 5| 5| 5| 9| 9| 9| 9| 8| 9| 9| 8| 9| 5| 5| 9| 9| 9| 9| 6| 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                        | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 7| 9| 9| 9| 0| 0| 0| 2| 2| 2| 3| 3| 3| 5| 5| 5| 5| 6| 6|             
    CONTROL                                | 2| 3| 5| 6| 8| 9| 3| 4| 7| 9| 0| 1| 4| 2| 8| 9| 0| 2| 3| 3| 6| 7| 9| 0| 1|             
    LUNG TOX                               | 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     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Gallbladder                             |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Large                         |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |    +           +     +           +     I                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Small                         |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Liver                                   |    +           +     +           +     +                       +     +  +|             
      Hepatocellular Carcinoma             |    X                                                                    X|             
      Hepatocellular Adenoma               |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Salivary Glands                         |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Stomach                                 |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |    +           +     +           +     +                       +     +  +|             
      Rhabdomyosarcoma, Metastatic,        |                                                                          |             
          Skeletal Muscle                  |    X                                                                     |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |    +           M     M           M     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |    +           +     M           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |    +           +     M           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                                  +     +                       +         |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Prostate                                |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         |    +           M     M           +     +                       +     M  +|             
                                            __________________________________________________________________________|             
   Testes                                  |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  57                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 5| 7| 7| 5| 1| 1| 1| 7| 7| 5| 3| 3| 3| 7| 3| 7| 2| 1| 7| 7| 3| 6| 1| 5|             
                             DAY ON TEST   | 3| 4| 1| 3| 4| 8| 8| 8| 3| 3| 4| 6| 6| 6| 3| 6| 3| 9| 8| 3| 3| 6| 1| 8| 4|             
                                           | 9| 9| 5| 9| 9| 5| 5| 5| 9| 9| 9| 9| 8| 9| 9| 8| 9| 5| 5| 9| 9| 9| 9| 6| 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                        | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|             
                               ANIMAL ID   | 6| 6| 6| 6| 6| 6| 7| 9| 9| 9| 0| 0| 0| 2| 2| 2| 3| 3| 3| 5| 5| 5| 5| 6| 6|             
    CONTROL                                | 2| 3| 5| 6| 8| 9| 3| 4| 7| 9| 0| 1| 4| 2| 8| 9| 0| 2| 3| 3| 6| 7| 9| 0| 1|             
    LUNG TOX                               | 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                              |    +           +     +           +     +                       +     +  +|             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic, Lung                 |    X                                                                     |             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   |    +           +     M           +     +                       M     +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |    +           +     +           M     M                       +     M  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mediastinal                 |    +           M     M           +     M                       M     +  +|             
      Adenocarcinoma, Metastatic, Lung     |    X                                                                     |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |    +           +     M           +     +                       +     M  +|             
                                            __________________________________________________________________________|             
   Spleen                                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Thymus                                  |    +           M     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |    +           +     M           M     M                       M     M  M|             
                                            __________________________________________________________________________|             
   Skin                                    |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |    +                                                                     |             
      Rhabdomyosarcoma                     |    X                                                                     |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Lung                                    |    +           +     +           +     +                       +     +  +|             
      Alveolar/Bronchiolar Carcinoma       |    X                                                                     |             
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |             
          Metastatic                       |    X                                                                     |             
      Hepatocellular Carcinoma, Metastatic |    X                                                                     |             
                                            __________________________________________________________________________|             
   Nose                                    |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Trachea                                 |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |    +           +     +           +     +                       +     +  +|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |    +           +     +           +     +                       +     +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  58                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 5| 1| 1| 5| 7| 0| 1| 7| 5| 5| 3| 7|                                |            |
                             DAY ON TEST   | 6| 6| 5| 8| 8| 4| 3| 3| 8| 3| 4| 5| 6| 3|                                |            |
                                           | 9| 9| 0| 6| 7| 9| 9| 9| 7| 9| 9| 0| 9| 9|                                |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                |     O      |
   B6C3F1 MICE MALE                        | 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5|                                |     T      |
                               ANIMAL ID   | 6| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 2| 2|                                |     A      |
    CONTROL                                | 2| 1| 3| 6| 7| 0| 1| 5| 1| 4| 6| 9| 2| 4|                                |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                                |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               |    +        +  +              +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 |    +        +  +              M                                          |  10        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Liver                                   |    +        +  +              +                                          |  12        |
      Hepatocellular Carcinoma             |                                                                          |          2 |
      Hepatocellular Adenoma               |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Stomach                                 |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      |    +        +  +              +                                          |  12        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   |    +        +  +              +                                          |  12        |
      Rhabdomyosarcoma, Metastatic,        |                                                                          |            |
          Skeletal Muscle                  |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   |    +        +  I              +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  |    +        +  I              +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      |    +        M  +              +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       |    M        M  +              M                                          |   6        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         |    +        +  +              +                                          |  11        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           |    +        +  +              +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |    +                                                                     |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Prostate                                |    +        +  +              +                                          |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  59                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 5| 1| 1| 5| 7| 0| 1| 7| 5| 5| 3| 7|                                |            |
                             DAY ON TEST   | 6| 6| 5| 8| 8| 4| 3| 3| 8| 3| 4| 5| 6| 3|                                |            |
                                           | 9| 9| 0| 6| 7| 9| 9| 9| 7| 9| 9| 0| 9| 9|                                |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                |     O      |
   B6C3F1 MICE MALE                        | 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5|                                |     T      |
                               ANIMAL ID   | 6| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 2| 2|                                |     A      |
    CONTROL                                | 2| 1| 3| 6| 7| 0| 1| 5| 1| 4| 6| 9| 2| 4|                                |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                                |            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         |    +        M  +              +                                          |   8        |
                                            __________________________________________________________________________|____________|
   Testes                                  |    +        +  +              +                                          |  12        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |    +        +  +              +                                          |  12        |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic, Lung                 |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   |    +        +  +              M                                          |   9        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  |             +  M              M                                          |   6        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 |    +        M  M              M                                          |   5        |
      Adenocarcinoma, Metastatic, Lung     |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  |    +        +  +              +                                          |  10        |
                                            __________________________________________________________________________|____________|
   Spleen                                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Thymus                                  |    +        +  +              +                                          |  11        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           |    M        M  M              +                                          |   3        |
                                            __________________________________________________________________________|____________|
   Skin                                    |    +        +  +              +                                          |  12        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                          |   1        |
      Rhabdomyosarcoma                     |                                                                          |          1 |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   |    +        +  +              +                                          |  12        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Lung                                    |    +        +  +              +                                          |  12        |
      Alveolar/Bronchiolar Carcinoma       |                                                                          |          1 |
      Alveolar/Bronchiolar Carcinoma,      |                                                                          |            |
          Metastatic                       |                                                                          |          1 |
      Hepatocellular Carcinoma, Metastatic |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Trachea                                 |    +        +  +              +                                          |  12        |
 _____________________________________________________________________________________________________________________|            |
 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  60                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 5| 1| 1| 5| 7| 0| 1| 7| 5| 5| 3| 7|                                |            |
                             DAY ON TEST   | 6| 6| 5| 8| 8| 4| 3| 3| 8| 3| 4| 5| 6| 3|                                |            |
                                           | 9| 9| 0| 6| 7| 9| 9| 9| 7| 9| 9| 0| 9| 9|                                |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                |     O      |
   B6C3F1 MICE MALE                        | 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5|                                |     T      |
                               ANIMAL ID   | 6| 8| 8| 8| 8| 9| 9| 9| 1| 1| 1| 1| 2| 2|                                |     A      |
    CONTROL                                | 2| 1| 3| 6| 7| 0| 1| 5| 1| 4| 6| 9| 2| 4|                                |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                                |            |
 __________________________________________________________________________________________________________________________________ 
 SPECIAL SENSES SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  |    +        +  +              +                                          |  12        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         |    +        +  +              +                                          |  12        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |    +        +  +              +                                          |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  61                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 3| 1| 7| 7| 1| 5| 3| 7| 3| 5| 1| 7| 5| 3| 1| 5| 3| 7| 5| 5| 3| 5| 7| 1|             
                             DAY ON TEST   | 7| 6| 8| 3| 3| 8| 4| 6| 3| 6| 4| 8| 3| 4| 6| 8| 4| 6| 3| 4| 5| 6| 4| 3| 8|             
                                           | 6| 9| 5| 9| 9| 5| 9| 8| 9| 9| 9| 5| 9| 9| 8| 5| 9| 9| 9| 9| 0| 9| 9| 9| 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| 1|             
                               ANIMAL ID   | 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 3| 4| 4| 4| 6| 6| 6| 6| 7| 7| 9| 9| 9| 9| 0|             
    6 MG/M3                                | 2| 3| 6| 9| 1| 2| 3| 1| 4| 7| 9| 3| 4| 5| 2| 3| 7| 9| 0| 3| 1| 4| 7| 8| 2|             
    LUNG TOX                               | 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           M     +        +     +|             
                                            __________________________________________________________________________|             
   Gallbladder                             |    +  +           +        +     +     +           +     M        +     +|             
                                            __________________________________________________________________________|             
   Intestine Large                         |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Small                         |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |    +  +           +        +     +     +           +     M        +     +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Liver                                   |    +  +           +        +     +     +           +     +        +     +|             
      Hepatocellular Adenoma               |                                                    X                     |             
                                            __________________________________________________________________________|             
   Pancreas                                |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Salivary Glands                         |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Stomach                                 |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |    +  M           M        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |    +  M           M        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |    +  M           M        +     +     M           +     +        +     +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |    M  +           +        +     +     M           M     +        +     +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |    +  M           +        M     M     M           M     M        +     +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |    +  +           +        M     +     +           I     +        M     +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |    +                       +                       +                     |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Prostate                                |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         |    +  M           +        +     M     +           +     +        +     M|             
                                            __________________________________________________________________________|             
   Testes                                  |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Lymph Node                              |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   |    M  +           +        I     I     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |    M  +           +        +     +     M           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  62                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 3| 1| 7| 7| 1| 5| 3| 7| 3| 5| 1| 7| 5| 3| 1| 5| 3| 7| 5| 5| 3| 5| 7| 1|             
                             DAY ON TEST   | 7| 6| 8| 3| 3| 8| 4| 6| 3| 6| 4| 8| 3| 4| 6| 8| 4| 6| 3| 4| 5| 6| 4| 3| 8|             
                                           | 6| 9| 5| 9| 9| 5| 9| 8| 9| 9| 9| 5| 9| 9| 8| 5| 9| 9| 9| 9| 0| 9| 9| 9| 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| 1|             
                               ANIMAL ID   | 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 3| 4| 4| 4| 6| 6| 6| 6| 7| 7| 9| 9| 9| 9| 0|             
    6 MG/M3                                | 2| 3| 6| 9| 1| 2| 3| 1| 4| 7| 9| 3| 4| 5| 2| 3| 7| 9| 0| 3| 1| 4| 7| 8| 2|             
    LUNG TOX                               | 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, Mediastinal                 |    M  M           +        M     M     +           M     M        +     M|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |    +  +           +        +     M     M           +     +        +     M|             
                                            __________________________________________________________________________|             
   Spleen                                  |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Thymus                                  |    +  +           +        +     +     +           M     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |    +  M           M        +     M     M           M     M        M     M|             
                                            __________________________________________________________________________|             
   Skin                                    |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Lung                                    |    +  +           +        +     +     +           +     +        +     +|             
      Alveolar/Bronchiolar Adenoma         |                                                                   X      |             
                                            __________________________________________________________________________|             
   Nose                                    |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Trachea                                 |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Ear                                     |                                                                   A      |             
                                            __________________________________________________________________________|             
   Eye                                     |                                  +                                       |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |    +  +           +        +     +     +           +     +        +     +|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |    +  +           +        +     +     +           +     +        +     +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  63                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 1| 7| 3| 7| 5| 1| 5| 3| 6| 3| 7| 7| 1|                             |            |
                             DAY ON TEST   | 1| 7| 8| 3| 6| 3| 5| 8| 5| 6| 7| 7| 3| 1| 8|                             |            |
                                           | 7| 6| 6| 9| 9| 9| 0| 7| 4| 9| 2| 6| 9| 8| 7|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 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|                             |     T      |
                               ANIMAL ID   | 0| 0| 2| 2| 2| 2| 3| 3| 3| 5| 5| 5| 6| 6| 6|                             |     A      |
    6 MG/M3                                | 3| 4| 2| 3| 6| 8| 0| 1| 4| 2| 3| 9| 1| 3| 5|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               |             +        +                                                   |  10        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             |             +        +                                                   |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  |             +        +                                                   |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Liver                                   |             +        +                                                   |  12        |
      Hepatocellular Adenoma               |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Pancreas                                |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Stomach                                 |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           |             +        +                                                   |  10        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   |             +        +                                                   |  10        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  |             +        +                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      |             +        +                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       |             +        +                                                   |   6        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         |             +        +                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |             +                                                            |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Prostate                                |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         |             +        M                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Testes                                  |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC 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  64                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 1| 7| 3| 7| 5| 1| 5| 3| 6| 3| 7| 7| 1|                             |            |
                             DAY ON TEST   | 1| 7| 8| 3| 6| 3| 5| 8| 5| 6| 7| 7| 3| 1| 8|                             |            |
                                           | 7| 6| 6| 9| 9| 9| 0| 7| 4| 9| 2| 6| 9| 8| 7|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 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|                             |     T      |
                               ANIMAL ID   | 0| 0| 2| 2| 2| 2| 3| 3| 3| 5| 5| 5| 6| 6| 6|                             |     A      |
    6 MG/M3                                | 3| 4| 2| 3| 6| 8| 0| 1| 4| 2| 3| 9| 1| 3| 5|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   |             +        +                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  |             +        M                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 |             +        M                                                   |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  |             +        +                                                   |   9        |
                                            __________________________________________________________________________|____________|
   Spleen                                  |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Thymus                                  |             +        +                                                   |  11        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           |             +        M                                                   |   3        |
                                            __________________________________________________________________________|____________|
   Skin                                    |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Lung                                    |             +        +                                                   |  12        |
      Alveolar/Bronchiolar Adenoma         |                                                                          |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Trachea                                 |             +        +                                                   |  12        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Ear                                     |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  |             +        +                                                   |  12        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         |             +        +                                                   |  12        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |             +        +                                                   |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  65                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 5| 5| 1| 1| 1| 7| 3| 5| 1| 3| 5| 1| 5| 5| 1| 7| 5| 7| 3| 1| 1| 1| 7| 5|             
                             DAY ON TEST   | 1| 4| 4| 1| 1| 8| 3| 6| 4| 8| 6| 4| 8| 6| 4| 8| 3| 5| 3| 6| 8| 4| 8| 3| 4|             
                                           | 3| 9| 9| 4| 4| 7| 9| 8| 9| 5| 8| 9| 5| 9| 9| 6| 9| 0| 9| 9| 6| 8| 6| 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                        | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 8| 8| 8| 9| 9| 9| 1| 1| 1| 2| 2| 2| 4| 4| 4| 4| 4| 5| 7| 7| 7| 7| 7| 7| 7|             
    18 MG/M3                               | 1| 2| 8| 0| 1| 4| 2| 6| 8| 0| 2| 5| 3| 4| 5| 6| 7| 4| 1| 2| 3| 4| 5| 6| 8|             
    LUNG TOX                               | 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  +           +|             
                                            __________________________________________________________________________|             
   Gallbladder                             |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Large                         |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 |    +  +                             +     +  +           +  +           M|             
                                            __________________________________________________________________________|             
   Intestine Small                         |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Liver                                   |    +  +                             +     +  +           +  +           +|             
      Hepatocellular Adenoma               |                                                          X               |             
                                            __________________________________________________________________________|             
   Pancreas                                |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Salivary Glands                         |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Stomach                                 |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Gland                           |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Cortex                   |       +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Adrenal Gland, Medulla                  |       +                             +     +  +           M  +           +|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      |    +  M                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       |    +  +                             +     M  M           M  M           M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         |    +  +                             M     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           |    +  +                             +     +  +           M  +           +|             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                                                          +              +|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Prostate                                |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         |    +  +                             M     +  M           +  M           +|             
                                            __________________________________________________________________________|             
   Testes                                  |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Lymph Node                              |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Lymph Node, Bronchial                   |    +  +                             +     +  +           M  +           +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  |    +  M                             +     M  M           M  M            |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  66                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 1| 5| 5| 1| 1| 1| 7| 3| 5| 1| 3| 5| 1| 5| 5| 1| 7| 5| 7| 3| 1| 1| 1| 7| 5|             
                             DAY ON TEST   | 1| 4| 4| 1| 1| 8| 3| 6| 4| 8| 6| 4| 8| 6| 4| 8| 3| 5| 3| 6| 8| 4| 8| 3| 4|             
                                           | 3| 9| 9| 4| 4| 7| 9| 8| 9| 5| 8| 9| 5| 9| 9| 6| 9| 0| 9| 9| 6| 8| 6| 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                        | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
                               ANIMAL ID   | 8| 8| 8| 9| 9| 9| 1| 1| 1| 2| 2| 2| 4| 4| 4| 4| 4| 5| 7| 7| 7| 7| 7| 7| 7|             
    18 MG/M3                               | 1| 2| 8| 0| 1| 4| 2| 6| 8| 0| 2| 5| 3| 4| 5| 6| 7| 4| 1| 2| 3| 4| 5| 6| 8|             
    LUNG TOX                               | 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, Mediastinal                 |    M  M                             M     +  M           +  M           M|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  |    +  M                             +     +  +           +  +           M|             
                                            __________________________________________________________________________|             
   Spleen                                  |    M  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Thymus                                  |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           |    M  M                             M     M  M           M  M           M|             
                                            __________________________________________________________________________|             
   Skin                                    |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Larynx                                  |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Lung                                    |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Nose                                    |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Trachea                                 |    +  +                             +     +  +           M  +           +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  |    +  +                             +     +  +           +  +           +|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
 SYSTEMIC LESIONS                          |                                                                          |             
                                            __________________________________________________________________________|             
   Multiple Organs                         |    +  +                             +     +  +           +  +           +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  67                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 3| 1| 7| 3| 7| 5| 6| 5| 3| 2| 5| 1| 3| 3|                             |            |
                             DAY ON TEST   | 3| 6| 8| 3| 6| 3| 5| 4| 5| 6| 1| 9| 8| 6| 6|                             |            |
                                           | 9| 9| 7| 9| 9| 9| 0| 6| 0| 9| 5| 4| 6| 9| 9|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE MALE                        | 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                             |     T      |
                               ANIMAL ID   | 8| 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 4| 4| 4| 4|                             |     A      |
    18 MG/M3                               | 0| 1| 2| 5| 9| 2| 4| 5| 1| 5| 6| 0| 1| 2| 4|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               |    M  +                    +           M                                 |   9        |
                                            __________________________________________________________________________|____________|
   Gallbladder                             |    M  +                    +           +                                 |  11        |
                                            __________________________________________________________________________|____________|
   Intestine Large                         |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 |    +  +                    +           I                                 |  10        |
                                            __________________________________________________________________________|____________|
   Intestine Small                         |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Liver                                   |    +  +                    +           +                                 |  12        |
      Hepatocellular Adenoma               |    X                                                                     |          2 |
                                            __________________________________________________________________________|____________|
   Pancreas                                |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Stomach                                 |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Gland                           |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Cortex                   |    +  +                    +           +                                 |  11        |
                                            __________________________________________________________________________|____________|
   Adrenal Gland, Medulla                  |    +  M                    +           +                                 |   9        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      |    +  +                    +           +                                 |  11        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       |    +  M                    M           M                                 |   4        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         |    +  +                    +           +                                 |  11        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           |    +  +                    +           +                                 |  11        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |    +                       +           +                                 |   5        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Prostate                                |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         |    +                       +           +                                 |   8        |
                                            __________________________________________________________________________|____________|
   Testes                                  |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC 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  68                                                               
NTP Experiment-Test: 05079-02                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                                TALC                                           Date: 04/07/97  
Route: RESPIRATORY EXPOSURE WHOLE BODY                                                                            Time: 14:42:04  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 3| 1| 7| 3| 7| 5| 6| 5| 3| 2| 5| 1| 3| 3|                             |            |
                             DAY ON TEST   | 3| 6| 8| 3| 6| 3| 5| 4| 5| 6| 1| 9| 8| 6| 6|                             |            |
                                           | 9| 9| 7| 9| 9| 9| 0| 6| 0| 9| 5| 4| 6| 9| 9|                             |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                             |     O      |
   B6C3F1 MICE MALE                        | 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                             |     T      |
                               ANIMAL ID   | 8| 0| 0| 0| 0| 1| 1| 1| 3| 3| 3| 4| 4| 4| 4|                             |     A      |
    18 MG/M3                               | 0| 1| 2| 5| 9| 2| 4| 5| 1| 5| 6| 0| 1| 2| 4|                             |     L      |
    LUNG TOX                               | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|                             |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Bronchial                   |    +  +                    M           +                                 |  10        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  |    +  M                    M           +                                 |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mediastinal                 |    M  M                    +           M                                 |   3        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  |    +  +                    +           +                                 |  10        |
                                            __________________________________________________________________________|____________|
   Spleen                                  |    +  +                    +           +                                 |  11        |
                                            __________________________________________________________________________|____________|
   Thymus                                  |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           |    M  M                    M           M                                 |            |
                                            __________________________________________________________________________|____________|
   Skin                                    |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   |    +  +                    +           +                                 |  12        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Larynx                                  |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Lung                                    |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Nose                                    |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Trachea                                 |    +  +                    M           +                                 |  10        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  |    +  +                    +           +                                 |  12        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         |    +  +                    +           +                                 |  12        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |    +  +                    +           +                                 |  12        |
 __________________________________________________________________________________________________________________________________ 
                         * : 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  69                                                               
                                  ------------------------------------------------------------                                      
                                  ----------              END OF REPORT             ----------                                      
                                  ------------------------------------------------------------