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TDMS Study 96001-05 Pathology Tables

NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: Battelle Northwest                                STODDARD SOLVENT (TYPE IIC)                             DATE: 01/08/03       
EXPERIMENT: 96001 TEST: 05                                                                                     TIME: 12:16:03       
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:       1        
CONT: NO1-ES-75410                              ROUTE: RESPIRATORY EXPOSURE WHOLE BODY                         NTP C#: C96001       
PATHOLOGIST: RENNE, ROGER                                                                                      CAS: 64742-88-7      
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                    
                                                             FINAL/RATS                                                             
                                                                                                                                    
                                                                                                                                    
               REASONS FOR REMOVAL:    ALL                                                                                          
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
               REMOVAL DATE RANGE:     ALL                                                                                          
                                                                                                                                    
               TREATMENT GROUPS:       INCLUDE ALL                                                                                  
                                                                                                                                   
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: Battelle Northwest                                STODDARD SOLVENT (TYPE IIC)                             DATE: 01/08/03       
EXPERIMENT: 96001 TEST: 05                                                                                     TIME: 12:16:03       
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                                        
CONT: NO1-ES-75410                              ROUTE: RESPIRATORY EXPOSURE WHOLE BODY                         NTP C#: C96001       
PATHOLOGIST: RENNE, ROGER                                                                                      CAS: 64742-88-7      
                                                                                                                                    
                                                                                                                                    
SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS                                                                               
IN THE ANALYSIS OF               STODDARD SOLVENT (TYPE IIC)                                                                        
===============================================================                                                                     
Male Rats                                                                                                                           
------------                                                                                                                        
Organ                                 Morphology                                                                                    
-----                                 ----------                                                                                    
Adrenal Cortex                         Vacuolization Cytoplasmic                                                                    
Adrenal Medulla                        Hyperplasia                                                                                  
                                       Necrosis                                                                                     
Heart                                  Cardiomyopathy                                                                               
Heart: Atrium                          Thrombosis                                                                                   
Kidney                                 Cyst                                                                                         
                                       Nephropathy Chronic                                                                          
Kidney: Cortex, Renal Tubule           Casts Granular                                                                               
                                       Hyperplasia                                                                                  
Kidney: Papilla                        Mineralization                                                                               
Kidney: Pelvis, Transitional Epithelium                                                                                             
                                       Hyperplasia                                                                                  
Lung                                   Inflammation                                                                                 
Lung: Alveolar Epithelium              Hyperplasia                                                                                  
Lung: Alveolus                         Infiltration Cellular Histiocyte                                                             
Nose: Goblet Cell                      Hyperplasia                                                                                  
Nose: Olfactory Epithelium             Degeneration Hyaline                                                                         
Pituitary Gland: Pars Distalis         Hemorrhage                                                                                   
Pleura                                 Fibrosis                                                                                     
                                       Inflammation Chronic                                                                         
Spleen                                 Fibrosis                                                                                     
                                       Necrosis                                                                                     
Thyroid Gland: C-Cell                  Hyperplasia                                                                                  
===============================================================                                                                     
Female Rats                                                                                                                         
------------                                                                                                                        
Organ                                  Morphology                                                                                   
-----                                  ----------                                                                                   
Adrenal Cortex                         Vacuolization Cytoplasmic                                                                    
Kidney                                 Nephropathy Chronic                                                                          
Kidney: Papilla                        Mineralization                                                                               
Kidney: Pelvis, Transitional Epithelium                                                                                             
                                       Mineralization                                                                               
Larynx                                 Inflammation Chronic                                                                         
Liver                                  Clear Cell Focus                                                                             
Liver: Hepatocyte                      Regeneration                                                                                 
Lung: Alveolus                         Infiltration Cellular Histiocyte                                                             
Nose: Olfactory Epithelium             Degeneration Hyaline                                                                         
Pleura                                 Fibrosis                                                                                     
                                       Inflammation Chronic                                                                         
Thyroid Gland: C-Cell                  Hyperplasia                                                                                  
Uterus                                 Necrosis                                                                                     
===============================================================                                                                     
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 1       
Statistical Analysis of Non-neoplastic Lesions in        Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)            
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Cortex                                                                                                                   | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    1/50 (2%)    0/50 (0%)   |1/50 (2%)    1/50 (2%)    0/50 (0%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     1/45.09      1/38.81      1/41.36      0/39.41     |1/45.31      1/44.39      0/44.80      2/41.33      | 
|POLY-3 PERCENT (g) |     2.2%         2.6%         2.4%         0.0%        |2.2%         2.3%         0.0%         4.8%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     717          625          726          ---         |495          575          ---          625          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.380N     P=0.692      P=0.696      P=0.608N    |P=0.342      P=0.760N     P=0.504N     P=0.469      | 
|POLY 3             |     P=0.324N     P=0.726      P=0.741      P=0.527N    |P=0.349      P=0.756      P=0.502N     P=0.468      | 
|POLY 1.5           |     P=0.315N     P=0.742      P=0.749      P=0.515N    |P=0.356      P=0.758      P=0.502N     P=0.480      | 
|POLY 6             |     P=0.339N     P=0.703      P=0.731      P=0.544N    |P=0.342      P=0.753      P=0.504N     P=0.452      | 
|LOGISTIC REGRESSION|     P=0.315N     P=0.757N     P=0.722      P=0.568N    |P=0.520      P=0.774N     P=0.390N     P=0.631      | 
|COCH-ARM / FISHERS |     P=0.304N     P=0.753N     P=0.753N     P=0.500N    |P=0.366      P=0.753N     P=0.500N     P=0.500      | 
|ORDER RESTRICTED   |     P=0.325N     (e)          (e)          (e)         |P=0.240      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Cortex                                                                                                                   | 
|     Vacuolization Cytoplasmic                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     15/50 (30%)  5/50 (10%)   14/50 (28%)  10/50 (20%) |9/50 (18%)   4/50 (8%)    15/50 (30%)  12/50 (24%)  | 
|POLY-3 RATE (b)    |     15/47.06     5/38.76      14/43.46     10/40.97    |9/45.39      4/44.30      15/45.22     12/42.40     | 
|POLY-3 PERCENT (g) |     31.9%        12.9%        32.2%        24.4%       |19.8%        9.0%         33.2%        28.3%        | 
|TERMINAL (d)       |     7/29 (24%)   4/19 (21%)   7/21 (33%)   4/16 (25%)  |7/36 (19%)   3/30 (10%)   12/32 (38%)  7/25 (28%)   | 
|FIRST INCIDENCE    |     476          642          546          522         |582          606          683          522          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.253      P=0.114N     P=0.390      P=0.546     |P=0.021 *    P=0.182N     P=0.080      P=0.114      | 
|POLY 3             |     P=0.535N     P=0.033N*    P=0.576      P=0.294N    |P=0.061      P=0.123N     P=0.113      P=0.248      | 
|POLY 1.5           |     P=0.516N     P=0.020N*    P=0.562N     P=0.239N    |P=0.072      P=0.120N     P=0.115      P=0.273      | 
|POLY 6             |     P=0.513      P=0.063N     P=0.528      P=0.385N    |P=0.050      P=0.131N     P=0.109      P=0.215      | 
|LOGISTIC REGRESSION|     P=0.530      P=0.022N*    P=0.487N     P=0.189N    |P=0.062      P=0.120N     P=0.121      P=0.271      | 
|COCH-ARM / FISHERS |     P=0.500N     P=0.011N*    P=0.500N     P=0.178N    |P=0.094      P=0.117N     P=0.121      P=0.312      | 
|ORDER RESTRICTED   |     P=0.283N     (e)          (e)          (e)         |P=0.044 *    (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 2       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Medulla                                                                                                                  | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     12/50 (24%)  14/50 (28%)  23/50 (46%)  15/50 (30%) |4/50 (8%)    2/50 (4%)    7/50 (14%)   4/50 (8%)    | 
|POLY-3 RATE (b)    |     12/46.14     14/41.83     23/43.82     15/42.29    |4/44.90      2/44.19      7/45.55      4/41.89      | 
|POLY-3 PERCENT (g) |     26.0%        33.5%        52.5%        35.5%       |8.9%         4.5%         15.4%        9.6%         | 
|TERMINAL (d)       |     7/29 (24%)   6/19 (32%)   10/21 (48%)  6/16 (38%)  |3/36 (8%)    0/30 (0%)    3/32 (9%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     621          537          541          432         |656          656          610          549          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.046 *    P=0.128      P=0.004 **   P=0.056     |P=0.283      P=0.392N     P=0.237      P=0.508      | 
|POLY 3             |     P=0.138      P=0.296      P=0.007 **   P=0.230     |P=0.366      P=0.344N     P=0.269      P=0.605      | 
|POLY 1.5           |     P=0.171      P=0.344      P=0.010 *    P=0.271     |P=0.384      P=0.341N     P=0.265      P=0.620      | 
|POLY 6             |     P=0.097      P=0.233      P=0.005 **   P=0.177     |P=0.343      P=0.351N     P=0.273      P=0.584      | 
|LOGISTIC REGRESSION|     P=0.181      P=0.412      P=0.008 **   P=0.297     |P=0.420      P=0.341N     P=0.262      P=0.630N     | 
|COCH-ARM / FISHERS |     P=0.218      P=0.410      P=0.018 *    P=0.326     |P=0.415      P=0.339N     P=0.262      P=0.643N     | 
|ORDER RESTRICTED   |     P=0.047 *    (e)          (e)          (e)         |P=0.285      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Medulla                                                                                                                  | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    2/50 (4%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      2/39.69     |0/44.62      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         5.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          673         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.035 *    (e)          (e)          P=0.161     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.040 *    (e)          (e)          P=0.210     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.041 *    (e)          (e)          P=0.222     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.039 *    (e)          (e)          P=0.194     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.039 *    (e)          (e)          P=0.213     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.043 *    (e)          (e)          P=0.247     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.021 *    (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 3       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Brain                                                                                                                            | 
|     Compression                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     13/50 (26%)  15/50 (30%)  10/50 (20%)  9/50 (18%)  |9/49 (18%)   8/50 (16%)   3/50 (6%)    6/50 (12%)   | 
|POLY-3 RATE (b)    |     13/47.02     15/43.98     10/42.92     9/42.20     |9/45.08      8/44.95      3/45.29      6/41.61      | 
|POLY-3 PERCENT (g) |     27.7%        34.1%        23.3%        21.3%       |20.0%        17.8%        6.6%         14.4%        | 
|TERMINAL (d)       |     4/29 (14%)   2/19 (11%)   4/21 (19%)   2/16 (13%)  |6/36 (17%)   3/30 (10%)   2/32 (6%)    2/25 (8%)    | 
|FIRST INCIDENCE    |     576          403          529          529         |509          481          581          506          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.281N     P=0.142      P=0.536N     P=0.569N    |P=0.341N     P=0.586      P=0.090N     P=0.517N     | 
|POLY 3             |     P=0.154N     P=0.329      P=0.409N     P=0.328N    |P=0.203N     P=0.503N     P=0.057N     P=0.346N     | 
|POLY 1.5           |     P=0.129N     P=0.366      P=0.369N     P=0.285N    |P=0.190N     P=0.493N     P=0.057N     P=0.316N     | 
|POLY 6             |     P=0.199N     P=0.277      P=0.467N     P=0.396N    |P=0.221N     P=0.519N     P=0.059N     P=0.388N     | 
|LOGISTIC REGRESSION|     P=0.062N     P=0.427N     P=0.291N     P=0.132N    |P=0.166N     P=0.479N     P=0.057N     P=0.295N     | 
|COCH-ARM / FISHERS |     P=0.102N     P=0.412      P=0.318N     P=0.235N    |P=0.169N     P=0.482N     P=0.056N     P=0.274N     | 
|ORDER RESTRICTED   |     P=0.244N     (e)          (e)          (e)         |P=0.162N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Brain                                                                                                                            | 
|     Hemorrhage                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    4/50 (8%)    5/50 (10%)   3/50 (6%)   |4/49 (8%)    3/50 (6%)    6/50 (12%)   1/50 (2%)    | 
|POLY-3 RATE (b)    |     4/46.29      4/40.21      5/42.41      3/40.67     |4/45.06      3/44.31      6/46.45      1/40.96      | 
|POLY-3 PERCENT (g) |     8.6%         10.0%        11.8%        7.4%        |8.9%         6.8%         12.9%        2.4%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |1/36 (3%)    1/30 (3%)    2/32 (6%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     476          403          556          465         |495          606          433          647          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.527N     P=0.478      P=0.400      P=0.624N    |P=0.290N     P=0.557N     P=0.354      P=0.262N     | 
|POLY 3             |     P=0.490N     P=0.564      P=0.445      P=0.570N    |P=0.246N     P=0.509N     P=0.389      P=0.209N     | 
|POLY 1.5           |     P=0.464N     P=0.599      P=0.467      P=0.540N    |P=0.224N     P=0.500N     P=0.386      P=0.194N     | 
|POLY 6             |     P=0.528N     P=0.511      P=0.421      P=0.613N    |P=0.276N     P=0.523N     P=0.390      P=0.230N     | 
|LOGISTIC REGRESSION|     P=0.328N     P=0.306N     P=0.639      P=0.224N    |P=0.134N     P=0.473N     P=0.400      P=0.136N     | 
|COCH-ARM / FISHERS |     P=0.433N     P=0.643N     P=0.500      P=0.500N    |P=0.193N     P=0.489N     P=0.383      P=0.175N     | 
|ORDER RESTRICTED   |     P=0.523N     (e)          (e)          (e)         |P=0.177N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 4       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Clitoral Gland                                                                                                                   | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |2/49 (4%)    3/50 (6%)    3/50 (6%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |                                                        |2/43.62      3/43.87      3/44.88      1/40.65      | 
|POLY-3 PERCENT (g) |                                                        |4.6%         6.8%         6.7%         2.5%         | 
|TERMINAL (d)       |                                                        |2/35 (6%)    3/30 (10%)   2/32 (6%)    1/25 (4%)    | 
|FIRST INCIDENCE    |                                                        |730 (T)      730 (T)      710          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.469N     P=0.429      P=0.460      P=0.617N     | 
|POLY 3             |                                                        |P=0.378N     P=0.503      P=0.513      P=0.525N     | 
|POLY 1.5           |                                                        |P=0.362N     P=0.506      P=0.511      P=0.512N     | 
|POLY 6             |                                                        |P=0.400N     P=0.496      P=0.514      P=0.543N     | 
|LOGISTIC REGRESSION|                                                        |P=0.440N     P=0.429      P=0.504      P=0.617N     | 
|COCH-ARM / FISHERS |                                                        |P=0.336N     P=0.510      P=0.510      P=0.492N     | 
|ORDER RESTRICTED   |                                                        |P=0.371N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Eye: Lens                                                                                                                        | 
|     Cataract                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     6/50 (12%)   1/50 (2%)    3/49 (6%)    2/50 (4%)   |3/49 (6%)    2/50 (4%)    1/50 (2%)    4/49 (8%)    | 
|POLY-3 RATE (b)    |     6/45.25      1/38.44      3/40.62      2/39.59     |3/44.22      2/43.87      1/44.80      4/40.56      | 
|POLY-3 PERCENT (g) |     13.3%        2.6%         7.4%         5.1%        |6.8%         4.6%         2.2%         9.9%         | 
|TERMINAL (d)       |     5/29 (17%)   1/19 (5%)    2/21 (10%)   1/16 (6%)   |3/36 (8%)    2/30 (7%)    1/32 (3%)    2/25 (8%)    | 
|FIRST INCIDENCE    |     674          729 (T)      712          683         |730 (T)      730 (T)      730 (T)      611          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.391N     P=0.160N     P=0.402N     P=0.348N    |P=0.250      P=0.583N     P=0.348N     P=0.347      | 
|POLY 3             |     P=0.222N     P=0.086N     P=0.297N     P=0.179N    |P=0.345      P=0.504N     P=0.300N     P=0.453      | 
|POLY 1.5           |     P=0.221N     P=0.072N     P=0.279N     P=0.158N    |P=0.353      P=0.498N     P=0.300N     P=0.471      | 
|POLY 6             |     P=0.225N     P=0.113N     P=0.321N     P=0.214N    |P=0.335      P=0.514N     P=0.302N     P=0.430      | 
|LOGISTIC REGRESSION|     P=0.312N     P=0.153N     P=0.341N     P=0.254N    |P=0.320      P=0.583N     P=0.348N     P=0.458      | 
|COCH-ARM / FISHERS |     P=0.224N     P=0.056N     P=0.254N     P=0.134N    |P=0.368      P=0.490N     P=0.301N     P=0.500      | 
|ORDER RESTRICTED   |     P=0.106N     (e)          (e)          (e)         |P=0.237      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 5       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Heart                                                                                                                            | 
|     Cardiomyopathy                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     13/50 (26%)  4/50 (8%)    5/50 (10%)   9/50 (18%)  |1/49 (2%)    0/50 (0%)    1/50 (2%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     13/45.98     4/39.15      5/42.71      9/41.38     |1/44.71      0/43.87      1/44.90      2/41.13      | 
|POLY-3 PERCENT (g) |     28.3%        10.2%        11.7%        21.8%       |2.2%         0.0%         2.2%         4.9%         | 
|TERMINAL (d)       |     10/29 (35%)  2/19 (11%)   1/21 (5%)    2/16 (13%)  |0/36 (0%)    0/30 (0%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     576          605          509          581         |582          ---          705          589          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.410      P=0.105N     P=0.112N     P=0.524     |P=0.206      P=0.500N     P=0.754      P=0.445      | 
|POLY 3             |     P=0.420N     P=0.033N*    P=0.044N*    P=0.324N    |P=0.232      P=0.504N     P=0.760N     P=0.471      | 
|POLY 1.5           |     P=0.424N     P=0.023N*    P=0.039N*    P=0.284N    |P=0.240      P=0.500N     P=0.758N     P=0.486      | 
|POLY 6             |     P=0.417N     P=0.053N     P=0.052N     P=0.382N    |P=0.224      P=0.509N     P=0.759      P=0.451      | 
|LOGISTIC REGRESSION|     P=0.455N     P=0.040N*    P=0.034N*    P=0.289N    |P=0.298      P=0.478N     P=0.748N     P=0.584      | 
|COCH-ARM / FISHERS |     P=0.431N     P=0.016N*    P=0.033N*    P=0.235N    |P=0.251      P=0.495N     P=0.747N     P=0.508      | 
|ORDER RESTRICTED   |     P=0.066N     (e)          (e)          (e)         |P=0.199      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Heart: Atrium                                                                                                                    | 
|     Thrombosis                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    1/50 (2%)    5/50 (10%)  |2/49 (4%)    1/50 (2%)    2/50 (4%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     1/45.04      0/38.44      1/41.55      5/40.13     |2/45.18      1/44.16      2/44.81      1/40.79      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         2.4%         12.5%       |4.4%         2.3%         4.5%         2.5%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     729 (T)      ---          675          667         |495          652          726          694          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.005 **   P=0.584N     P=0.715      P=0.039 *   |P=0.516N     P=0.505N     P=0.674      P=0.549N     | 
|POLY 3             |     P=0.007 **   P=0.531N     P=0.743      P=0.076     |P=0.473N     P=0.508N     P=0.691      P=0.536N     | 
|POLY 1.5           |     P=0.008 **   P=0.518N     P=0.750      P=0.087     |P=0.460N     P=0.501N     P=0.693N     P=0.518N     | 
|POLY 6             |     P=0.007 **   P=0.552N     P=0.734      P=0.064     |P=0.490N     P=0.517N     P=0.685      P=0.558N     | 
|LOGISTIC REGRESSION|     P=0.007 **   (e)          P=0.748      P=0.071     |P=0.384N     P=0.464N     P=0.675N     P=0.388N     | 
|COCH-ARM / FISHERS |     P=0.009 **   P=0.500N     P=0.753N     P=0.102     |P=0.438N     P=0.492N     P=0.684N     P=0.492N     | 
|ORDER RESTRICTED   |     P=0.005 **   (e)          (e)          (e)         |P=0.490N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 6       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney                                                                                                                           | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    2/50 (4%)   |0/49 (0%)    2/50 (4%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      2/39.73     |0/44.22      2/43.87      0/44.80      1/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         5.0%        |0.0%         4.6%         0.0%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    1/16 (6%)   |0/36 (0%)    2/30 (7%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          642         |---          730 (T)      ---          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.029 *    (e)          (e)          P=0.160     |P=0.457      P=0.199      (e)          P=0.427      | 
|POLY 3             |     P=0.040 *    (e)          (e)          P=0.210     |P=0.508      P=0.235      (e)          P=0.483      | 
|POLY 1.5           |     P=0.041 *    (e)          (e)          P=0.222     |P=0.522      P=0.238      (e)          P=0.492      | 
|POLY 6             |     P=0.039 *    (e)          (e)          P=0.194     |P=0.489      P=0.230      (e)          P=0.472      | 
|LOGISTIC REGRESSION|     P=0.041 *    (e)          (e)          P=0.225     |(e)          P=0.199      (e)          P=0.427      | 
|COCH-ARM / FISHERS |     P=0.043 *    (e)          (e)          P=0.247     |P=0.543      P=0.253      (e)          P=0.505      | 
|ORDER RESTRICTED   |     P=0.021 *    (e)          (e)          (e)         |P=0.309      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney                                                                                                                           | 
|     Nephropathy Chronic                                                                                                         | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     50/50 (100%) 49/50 (98%)  50/50 (100%) 50/50 (100%)|42/49 (86%)  44/50 (88%)  46/50 (92%)  44/50 (88%)  | 
|POLY-3 RATE (b)    |     50/50.00     49/49.19     50/50.00     50/50.00    |42/45.91     44/46.62     46/47.66     44/45.98     | 
|POLY-3 PERCENT (g) |     100.0%       99.6%        100.0%       100.0%      |91.5%        94.4%        96.5%        95.7%        | 
|TERMINAL (d)       |     29/29 (100%) 19/19 (100%) 21/21 (100%) 16/16 (100%)|34/36 (94%)  30/30 (100%) 32/32 (100%) 25/25 (100%) | 
|FIRST INCIDENCE    |     476          403          396          432         |582          537          563          506          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.024 *    P=0.010 *    (e)          (e)         |P=0.003 **   P=0.063      P=0.073      P=0.004 **   | 
|POLY 3             |     P=0.996      P=1.000N     (e)          (e)         |P=0.201      P=0.434      P=0.239      P=0.310      | 
|POLY 1.5           |     P=0.772      P=0.897N     (e)          (e)         |P=0.275      P=0.463      P=0.227      P=0.374      | 
|POLY 6             |     P=1.000      P=1.000N     (e)          (e)         |P=0.140      P=0.372      P=0.286      P=0.256      | 
|LOGISTIC REGRESSION|     P=0.470      P=0.986N     (e)          (e)         |P=0.031 *    P=0.350      P=0.196      P=0.072      | 
|COCH-ARM / FISHERS |     P=0.468      P=0.500N     (e)          (e)         |P=0.414      P=0.484      P=0.251      P=0.484      | 
|ORDER RESTRICTED   |     P=0.379      (e)          (e)          (e)         |P=0.163      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 7       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Cortex                                                                                                                   | 
|     Infarct                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    1/50 (2%)    2/50 (4%)   |1/49 (2%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/45.45      1/39.25      1/41.90      2/39.91     |1/44.71      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     4.4%         2.6%         2.4%         5.0%        |2.2%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    1/16 (6%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     611          421          556          581         |582          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.447      P=0.569N     P=0.565N     P=0.549     |P=0.313N     P=0.500N     P=0.500N     P=0.514N     | 
|POLY 3             |     P=0.507      P=0.551N     P=0.528N     P=0.646     |P=0.288N     P=0.504N     P=0.500N     P=0.519N     | 
|POLY 1.5           |     P=0.516      P=0.528N     P=0.517N     P=0.667     |P=0.295N     P=0.500N     P=0.498N     P=0.510N     | 
|POLY 6             |     P=0.492      P=0.586N     P=0.543N     P=0.615     |P=0.278N     P=0.509N     P=0.502N     P=0.532N     | 
|LOGISTIC REGRESSION|     P=0.604      P=0.252N     P=0.382N     P=0.643N    |P=0.226N     P=0.478N     P=0.457N     P=0.403N     | 
|COCH-ARM / FISHERS |     P=0.527      P=0.500N     P=0.500N     P=0.691N    |P=0.303N     P=0.495N     P=0.495N     P=0.495N     | 
|ORDER RESTRICTED   |     P=0.508      (e)          (e)          (e)         |P=0.138N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Cortex, Renal Tubule                                                                                                     | 
|     Accumulation, Hyaline Droplet                                                                                               | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    5/50 (10%)   3/50 (6%)    2/50 (4%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     2/46.27      5/41.19      3/43.31      2/40.74     |0/44.22      0/43.87      0/44.80      1/41.23      | 
|POLY-3 PERCENT (g) |     4.3%         12.1%        6.9%         4.9%        |0.0%         0.0%         0.0%         2.4%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     476          403          396          432         |---          ---          ---          549          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.381N     P=0.174      P=0.471      P=0.669     |P=0.190      (e)          (e)          P=0.491      | 
|POLY 3             |     P=0.413N     P=0.171      P=0.470      P=0.647     |P=0.190      (e)          (e)          P=0.486      | 
|POLY 1.5           |     P=0.385N     P=0.191      P=0.483      P=0.668     |P=0.194      (e)          (e)          P=0.493      | 
|POLY 6             |     P=0.455N     P=0.145      P=0.454      P=0.616     |P=0.185      (e)          (e)          P=0.476      | 
|LOGISTIC REGRESSION|     P=0.102N     P=0.659N     P=0.348N     P=0.199N    |P=0.291      (e)          (e)          P=0.631      | 
|COCH-ARM / FISHERS |     P=0.351N     P=0.218      P=0.500      P=0.691N    |P=0.200      (e)          (e)          P=0.505      | 
|ORDER RESTRICTED   |     P=0.398      (e)          (e)          (e)         |P=0.108      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 8       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Cortex, Renal Tubule                                                                                                     | 
|     Casts Granular                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    1/50 (2%)    3/50 (6%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      1/38.94      1/41.34      3/40.66     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         2.6%         2.4%         7.4%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    1/16 (6%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          579          729 (T)      522         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.039 *    P=0.487      P=0.436      P=0.087     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.050      P=0.471      P=0.483      P=0.101     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.054      P=0.484      P=0.490      P=0.109     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.045 *    P=0.452      P=0.474      P=0.090     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.075      P=0.660      P=0.436      P=0.236     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.059      P=0.500      P=0.500      P=0.121     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.029 *    (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Cortex, Renal Tubule                                                                                                     | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    8/50 (16%)   23/50 (46%) |0/49 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      1/38.45      8/41.34      23/41.68    |0/44.22      0/43.87      1/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         2.6%         19.4%        55.2%       |0.0%         0.0%         2.2%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    8/21 (38%)   10/16 (63%) |0/36 (0%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          726          729 (T)      563         |---          ---          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P<0.001 **   P=0.419      P<0.001 **   P<0.001 **  |P=0.657      (e)          P=0.477      (e)          | 
|POLY 3             |     P<0.001 **   P=0.469      P=0.002 **   P<0.001 **  |P=0.652      (e)          P=0.503      (e)          | 
|POLY 1.5           |     P<0.001 **   P=0.482      P=0.003 **   P<0.001 **  |P=0.671      (e)          P=0.503      (e)          | 
|POLY 6             |     P<0.001 **   P=0.448      P=0.002 **   P<0.001 **  |P=0.626      (e)          P=0.501      (e)          | 
|LOGISTIC REGRESSION|     P<0.001 **   P=0.404      P<0.001 **   P<0.001 **  |(e)          (e)          P=0.477      (e)          | 
|COCH-ARM / FISHERS |     P<0.001 **   P=0.500      P=0.003 **   P<0.001 **  |P=0.697      (e)          P=0.505      (e)          | 
|ORDER RESTRICTED   |     P<0.001 **   (e)          (e)          (e)         |P=0.384      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 9       
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Medulla                                                                                                                  | 
|     Casts Granular                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    3/50 (6%)    1/50 (2%)    3/50 (6%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      3/39.78      1/41.82      3/39.87     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         7.5%         2.4%         7.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    2/16 (13%)  |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          472          589          593         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.152      P=0.096      P=0.478      P=0.056     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.179      P=0.098      P=0.485      P=0.098     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.196      P=0.107      P=0.491      P=0.107     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.156      P=0.085      P=0.478      P=0.086     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.266      P=0.259      P=0.622      P=0.111     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.220      P=0.121      P=0.500      P=0.121     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.059      (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Papilla                                                                                                                  | 
|     Mineralization                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    8/50 (16%)   30/50 (60%)  39/50 (78%) |3/49 (6%)    1/50 (2%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.04      8/39.96      30/46.16     39/48.11    |3/44.22      1/43.87      1/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         20.0%        65.0%        81.1%       |6.8%         2.3%         2.2%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    3/19 (16%)   13/21 (62%)  12/16 (75%) |3/36 (8%)    1/30 (3%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     729 (T)      621          509          432         |730 (T)      730 (T)      730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P<0.001 **   P=0.005 **   P<0.001 **   P<0.001 **  |P=0.108N     P=0.372N     P=0.348N     P=0.192N     | 
|POLY 3             |     P<0.001 **   P=0.009 **   P<0.001 **   P<0.001 **  |P=0.076N     P=0.308N     P=0.300N     P=0.134N     | 
|POLY 1.5           |     P<0.001 **   P=0.011 *    P<0.001 **   P<0.001 **  |P=0.074N     P=0.303N     P=0.300N     P=0.126N     | 
|POLY 6             |     P<0.001 **   P=0.006 **   P<0.001 **   P<0.001 **  |P=0.079N     P=0.316N     P=0.302N     P=0.146N     | 
|LOGISTIC REGRESSION|     P<0.001 **   P=0.013 *    P<0.001 **   P<0.001 **  |P=0.108N     P=0.372N     P=0.348N     (e)          | 
|COCH-ARM / FISHERS |     P<0.001 **   P=0.015 *    P<0.001 **   P<0.001 **  |P=0.071N     P=0.301N     P=0.301N     P=0.117N     | 
|ORDER RESTRICTED   |     P<0.001 **   (e)          (e)          (e)         |P=0.046N*    (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 10      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Pelvis, Transitional Epithelium                                                                                          | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    2/50 (4%)    8/50 (16%)   5/50 (10%)  |4/49 (8%)    3/50 (6%)    7/50 (14%)   3/50 (6%)    | 
|POLY-3 RATE (b)    |     0/45.04      2/38.72      8/42.46      5/39.88     |4/44.22      3/43.92      7/45.45      3/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         5.2%         18.8%        12.5%       |9.1%         6.8%         15.4%        7.4%         | 
|TERMINAL (d)       |     0/29 (0%)    1/19 (5%)    3/21 (14%)   2/16 (13%)  |4/36 (11%)   2/30 (7%)    5/32 (16%)   3/25 (12%)   | 
|FIRST INCIDENCE    |     ---          652          618          684         |730 (T)      719          563          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.008 **   P=0.157      P=0.003 **   P=0.010 *   |P=0.428      P=0.591N     P=0.212      P=0.617      | 
|POLY 3             |     P=0.012 *    P=0.205      P=0.003 **   P=0.021 *   |P=0.551      P=0.504N     P=0.276      P=0.546N     | 
|POLY 1.5           |     P=0.015 *    P=0.219      P=0.003 **   P=0.025 *   |P=0.550N     P=0.497N     P=0.275      P=0.523N     | 
|POLY 6             |     P=0.008 **   P=0.186      P=0.002 **   P=0.017 *   |P=0.509      P=0.515N     P=0.277      P=0.577N     | 
|LOGISTIC REGRESSION|     P=0.016 *    P=0.207      P=0.004 **   P=0.017 *   |P=0.534      P=0.553N     P=0.268      P=0.617      | 
|COCH-ARM / FISHERS |     P=0.022 *    P=0.247      P=0.003 **   P=0.028 *   |P=0.507N     P=0.489N     P=0.274      P=0.489N     | 
|ORDER RESTRICTED   |     P=0.006 **   (e)          (e)          (e)         |P=0.454      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Pelvis, Transitional Epithelium                                                                                          | 
|     Mineralization                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |25/49 (51%)  23/50 (46%)  27/50 (54%)  27/50 (54%)  | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      0/39.41     |25/44.69     23/44.62     27/45.21     27/42.53     | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |55.9%        51.6%        59.7%        63.5%        | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |23/36 (64%)  17/30 (57%)  22/32 (69%)  18/25 (72%)  | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |634          656          695          611          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.015 *    P=0.425      P=0.212      P=0.027 *    | 
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.192      P=0.417N     P=0.439      P=0.302      | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.239      P=0.400N     P=0.448      P=0.362      | 
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.148      P=0.446N     P=0.425      P=0.240      | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.066      P=0.504N     P=0.412      P=0.145      | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.329      P=0.383N     P=0.462      P=0.462      | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |P=0.274      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 11      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Larynx                                                                                                                           | 
|     Foreign Body                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    2/50 (4%)    2/50 (4%)    3/50 (6%)   |2/49 (4%)    1/50 (2%)    2/50 (4%)    1/49 (2%)    | 
|POLY-3 RATE (b)    |     1/45.11      2/38.97      2/41.77      3/39.99     |2/44.88      1/43.87      2/44.83      1/39.65      | 
|POLY-3 PERCENT (g) |     2.2%         5.1%         4.8%         7.5%        |4.5%         2.3%         4.5%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    1/19 (5%)    0/21 (0%)    0/16 (0%)   |1/36 (3%)    1/30 (3%)    1/32 (3%)    1/24 (4%)    | 
|FIRST INCIDENCE    |     712          565          647          645         |509          730 (T)      722          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.183      P=0.384      P=0.440      P=0.190     |P=0.552N     P=0.545N     P=0.664      P=0.595N     | 
|POLY 3             |     P=0.212      P=0.449      P=0.473      P=0.263     |P=0.480N     P=0.508N     P=0.694      P=0.543N     | 
|POLY 1.5           |     P=0.226      P=0.472      P=0.484      P=0.281     |P=0.467N     P=0.501N     P=0.691N     P=0.526N     | 
|POLY 6             |     P=0.192      P=0.416      P=0.461      P=0.239     |P=0.497N     P=0.518N     P=0.690      P=0.566N     | 
|LOGISTIC REGRESSION|     P=0.245      P=0.535      P=0.506      P=0.288     |P=0.450N     P=0.477N     P=0.682N     P=0.457N     | 
|COCH-ARM / FISHERS |     P=0.243      P=0.500      P=0.500      P=0.309     |P=0.446N     P=0.492N     P=0.684N     P=0.500N     | 
|ORDER RESTRICTED   |     P=0.198      (e)          (e)          (e)         |P=0.500N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Larynx                                                                                                                           | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    2/50 (4%)    0/50 (0%)    2/50 (4%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/49 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      2/38.97      0/41.34      2/40.71     |0/44.22      0/43.87      0/44.80      0/39.65      | 
|POLY-3 PERCENT (g) |     0.0%         5.1%         0.0%         4.9%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    1/19 (5%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/24 (0%)    | 
|FIRST INCIDENCE    |     ---          565          ---          432         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.271      P=0.188      (e)          P=0.228     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.279      P=0.206      (e)          P=0.215     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.294      P=0.220      (e)          P=0.225     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.256      P=0.188      (e)          P=0.201     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.379      P=0.285      (e)          P=0.528     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.313      P=0.247      (e)          P=0.247     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.100      (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 12      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Larynx                                                                                                                           | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    2/50 (4%)    0/50 (0%)   |3/49 (6%)    1/50 (2%)    0/50 (0%)    0/49 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      2/41.80      0/39.41     |3/44.22      1/43.87      0/44.80      0/39.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         4.8%         0.0%        |6.8%         2.3%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |3/36 (8%)    1/30 (3%)    0/32 (0%)    0/24 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          593          ---         |730 (T)      730 (T)      ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.484      (e)          P=0.191      (e)         |P=0.066N     P=0.372N     P=0.142N     P=0.201N     | 
|POLY 3             |     P=0.500      (e)          P=0.221      (e)         |P=0.043N*    P=0.308N     P=0.116N     P=0.139N     | 
|POLY 1.5           |     P=0.522      (e)          P=0.227      (e)         |P=0.043N*    P=0.303N     P=0.116N     P=0.131N     | 
|POLY 6             |     P=0.465      (e)          P=0.213      (e)         |P=0.042N*    P=0.316N     P=0.117N     P=0.152N     | 
|LOGISTIC REGRESSION|     P=0.557      (e)          P=0.266      (e)         |P=0.066N     P=0.372N     (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.546      (e)          P=0.247      (e)         |P=0.043N*    P=0.301N     P=0.117N     P=0.121N     | 
|ORDER RESTRICTED   |     P=0.235      (e)          (e)          (e)         |P=0.028N*    (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Angiectasis                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)   |1/49 (2%)    2/50 (4%)    2/50 (4%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      1/41.44      0/39.41     |1/44.22      2/43.89      2/44.92      2/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         2.4%         0.0%        |2.3%         4.6%         4.5%         4.9%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |1/36 (3%)    1/30 (3%)    1/32 (3%)    2/25 (8%)    | 
|FIRST INCIDENCE    |     ---          ---          705          ---         |730 (T)      726          698          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.622      (e)          P=0.462      (e)         |P=0.301      P=0.448      P=0.470      P=0.373      | 
|POLY 3             |     P=0.621      (e)          P=0.483      (e)         |P=0.382      P=0.497      P=0.506      P=0.471      | 
|POLY 1.5           |     P=0.638      (e)          P=0.490      (e)         |P=0.401      P=0.502      P=0.506      P=0.486      | 
|POLY 6             |     P=0.593      (e)          P=0.475      (e)         |P=0.357      P=0.490      P=0.504      P=0.450      | 
|LOGISTIC REGRESSION|     P=0.640      (e)          P=0.481      (e)         |P=0.340      P=0.465      P=0.502      P=0.373      | 
|COCH-ARM / FISHERS |     P=0.657      (e)          P=0.500      (e)         |P=0.429      P=0.508      P=0.508      P=0.508      | 
|ORDER RESTRICTED   |     P=0.367      (e)          (e)          (e)         |P=0.428      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 13      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Basophilic Focus                                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |2/49 (4%)    3/50 (6%)    1/50 (2%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     1/45.14      0/38.44      0/41.34      0/39.41     |2/44.22      3/44.13      1/44.90      1/40.73      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         0.0%         0.0%        |4.5%         6.8%         2.2%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |2/36 (6%)    1/30 (3%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     705          ---          ---          ---         |730 (T)      691          703          712          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.378N     P=0.612N     P=0.538N     P=0.593N    |P=0.376N     P=0.437      P=0.530N     P=0.618N     | 
|POLY 3             |     P=0.318N     P=0.532N     P=0.517N     P=0.527N    |P=0.301N     P=0.499      P=0.495N     P=0.529N     | 
|POLY 1.5           |     P=0.329N     P=0.518N     P=0.510N     P=0.515N    |P=0.290N     P=0.504      P=0.494N     P=0.514N     | 
|POLY 6             |     P=0.302N     P=0.553N     P=0.527N     P=0.544N    |P=0.314N     P=0.492      P=0.496N     P=0.548N     | 
|LOGISTIC REGRESSION|     P=0.360N     P=0.552N     P=0.519N     P=0.540N    |P=0.313N     P=0.489      P=0.498N     P=0.576N     | 
|COCH-ARM / FISHERS |     P=0.343N     P=0.500N     P=0.500N     P=0.500N    |P=0.274N     P=0.510      P=0.492N     P=0.492N     | 
|ORDER RESTRICTED   |     P=0.146N     (e)          (e)          (e)         |P=0.354N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Clear Cell Focus                                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     6/50 (12%)   4/50 (8%)    3/50 (6%)    3/50 (6%)   |9/49 (18%)   7/50 (14%)   7/50 (14%)   3/50 (6%)    | 
|POLY-3 RATE (b)    |     6/45.04      4/38.76      3/41.34      3/39.80     |9/45.00      7/44.74      7/45.65      3/40.65      | 
|POLY-3 PERCENT (g) |     13.3%        10.3%        7.3%         7.5%        |20.0%        15.7%        15.3%        7.4%         | 
|TERMINAL (d)       |     6/29 (21%)   3/19 (16%)   3/21 (14%)   1/16 (6%)   |7/36 (19%)   4/30 (13%)   4/32 (13%)   3/25 (12%)   | 
|FIRST INCIDENCE    |     729 (T)      642          729 (T)      642         |509          481          563          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.414N     P=0.636N     P=0.418N     P=0.554N    |P=0.136N     P=0.515N     P=0.458N     P=0.172N     | 
|POLY 3             |     P=0.221N     P=0.467N     P=0.285N     P=0.306N    |P=0.072N     P=0.397N     P=0.380N     P=0.084N     | 
|POLY 1.5           |     P=0.212N     P=0.423N     P=0.267N     P=0.277N    |P=0.062N     P=0.387N     P=0.380N     P=0.071N     | 
|POLY 6             |     P=0.237N     P=0.531N     P=0.308N     P=0.349N    |P=0.088N     P=0.414N     P=0.381N     P=0.105N     | 
|LOGISTIC REGRESSION|     P=0.292N     P=0.620      P=0.418N     P=0.427N    |P=0.056N     P=0.376N     P=0.376N     P=0.083N     | 
|COCH-ARM / FISHERS |     P=0.201N     P=0.370N     P=0.243N     P=0.243N    |P=0.047N*    P=0.376N     P=0.376N     P=0.056N     | 
|ORDER RESTRICTED   |     P=0.280N     (e)          (e)          (e)         |P=0.078N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 14      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Hepatodiaphragmatic Nodule                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     7/50 (14%)   3/50 (6%)    5/50 (10%)   3/50 (6%)   |5/49 (10%)   9/50 (18%)   5/50 (10%)   6/50 (12%)   | 
|POLY-3 RATE (b)    |     7/45.81      3/39.31      5/42.36      3/39.60     |5/45.53      9/44.30      5/44.80      6/41.28      | 
|POLY-3 PERCENT (g) |     15.3%        7.6%         11.8%        7.6%        |11.0%        20.3%        11.2%        14.5%        | 
|TERMINAL (d)       |     4/29 (14%)   1/19 (5%)    2/21 (10%)   1/16 (6%)   |3/36 (8%)    8/30 (27%)   5/32 (16%)   2/25 (8%)    | 
|FIRST INCIDENCE    |     626          582          509          684         |481          606          730 (T)      647          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.393N     P=0.348N     P=0.547N     P=0.397N    |P=0.389      P=0.127      P=0.570      P=0.329      | 
|POLY 3             |     P=0.253N     P=0.226N     P=0.435N     P=0.222N    |P=0.519      P=0.176      P=0.620      P=0.431      | 
|POLY 1.5           |     P=0.239N     P=0.194N     P=0.411N     P=0.192N    |P=0.555      P=0.188      P=0.628      P=0.464      | 
|POLY 6             |     P=0.278N     P=0.278N     P=0.466N     P=0.271N    |P=0.476      P=0.161      P=0.609      P=0.393      | 
|LOGISTIC REGRESSION|     P=0.239N     P=0.158N     P=0.364N     P=0.233N    |P=0.545N     P=0.210      P=0.613N     P=0.544      | 
|COCH-ARM / FISHERS |     P=0.225N     P=0.159N     P=0.380N     P=0.159N    |P=0.502N     P=0.205      P=0.617N     P=0.514      | 
|ORDER RESTRICTED   |     P=0.193N     (e)          (e)          (e)         |P=0.446      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    0/50 (0%)    1/50 (2%)   |0/49 (0%)    0/50 (0%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.04      0/38.44      0/41.34      1/39.59     |0/44.22      0/43.87      2/45.63      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         0.0%         2.5%        |0.0%         0.0%         4.4%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     729 (T)      ---          ---          684         |---          ---          610          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.493      P=0.584N     P=0.564N     P=0.662     |P=0.583      (e)          P=0.249      (e)          | 
|POLY 3             |     P=0.548      P=0.531N     P=0.517N     P=0.731     |P=0.539      (e)          P=0.244      (e)          | 
|POLY 1.5           |     P=0.548      P=0.518N     P=0.510N     P=0.744     |P=0.564      (e)          P=0.243      (e)          | 
|POLY 6             |     P=0.548      P=0.552N     P=0.526N     P=0.712     |P=0.505      (e)          P=0.246      (e)          | 
|LOGISTIC REGRESSION|     P=0.517      (e)          (e)          P=0.720     |P=0.683      (e)          P=0.262      (e)          | 
|COCH-ARM / FISHERS |     P=0.546      P=0.500N     P=0.500N     P=0.753N    |P=0.598      (e)          P=0.253      (e)          | 
|ORDER RESTRICTED   |     P=0.371      (e)          (e)          (e)         |P=0.254      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 15      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Vacuolization Cytoplasmic                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    3/50 (6%)    1/50 (2%)    2/50 (4%)   |2/49 (4%)    5/50 (10%)   6/50 (12%)   1/50 (2%)    | 
|POLY-3 RATE (b)    |     3/45.77      3/39.52      1/41.69      2/39.74     |2/44.78      5/44.27      6/46.01      1/40.87      | 
|POLY-3 PERCENT (g) |     6.6%         7.6%         2.4%         5.0%        |4.5%         11.3%        13.0%        2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    1/30 (3%)    2/32 (6%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     576          621          633          667         |582          670          565          674          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.393N     P=0.536      P=0.371N     P=0.652N    |P=0.439N     P=0.192      P=0.128      P=0.557N     | 
|POLY 3             |     P=0.352N     P=0.593      P=0.339N     P=0.564N    |P=0.390N     P=0.211      P=0.142      P=0.532N     | 
|POLY 1.5           |     P=0.338N     P=0.623      P=0.325N     P=0.536N    |P=0.357N     P=0.217      P=0.141      P=0.516N     | 
|POLY 6             |     P=0.373N     P=0.549      P=0.357N     P=0.603N    |P=0.434N     P=0.202      P=0.142      P=0.553N     | 
|LOGISTIC REGRESSION|     P=0.287N     P=0.525N     P=0.226N     P=0.450N    |P=0.289N     P=0.227      P=0.146      P=0.450N     | 
|COCH-ARM / FISHERS |     P=0.321N     P=0.661N     P=0.309N     P=0.500N    |P=0.311N     P=0.226      P=0.141      P=0.492N     | 
|ORDER RESTRICTED   |     P=0.391N     (e)          (e)          (e)         |P=0.174N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver: Bile Duct                                                                                                                 | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    3/50 (6%)    2/50 (4%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      3/42.04      2/39.71     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         7.1%         5.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          558          675         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.058      (e)          P=0.094      P=0.170     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.064      (e)          P=0.106      P=0.210     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.070      (e)          P=0.111      P=0.222     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.056      (e)          P=0.101      P=0.195     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.079      (e)          P=0.143      P=0.217     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.078      (e)          P=0.121      P=0.247     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.072      (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 16      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver: Hepatocyte                                                                                                                | 
|     Regeneration                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    1/50 (2%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      1/39.73     |0/44.22      0/43.87      0/44.80      3/41.13      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         2.5%        |0.0%         0.0%         0.0%         7.3%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          642         |---          ---          ---          606          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.179      (e)          (e)          P=0.465     |P=0.007 **   (e)          (e)          P=0.083      | 
|POLY 3             |     P=0.180      (e)          (e)          P=0.475     |P=0.010 *    (e)          (e)          P=0.106      | 
|POLY 1.5           |     P=0.184      (e)          (e)          P=0.486     |P=0.011 *    (e)          (e)          P=0.112      | 
|POLY 6             |     P=0.175      (e)          (e)          P=0.460     |P=0.010 *    (e)          (e)          P=0.098      | 
|LOGISTIC REGRESSION|     P=0.198      (e)          (e)          P=0.564     |P=0.012 *    (e)          (e)          P=0.120      | 
|COCH-ARM / FISHERS |     P=0.188      (e)          (e)          P=0.500     |P=0.012 *    (e)          (e)          P=0.125      | 
|ORDER RESTRICTED   |     P=0.101      (e)          (e)          (e)         |P=0.006 **   (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver: Periportal                                                                                                                | 
|     Pigmentation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    2/50 (4%)    0/50 (0%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.25      0/38.44      2/41.34      0/39.41     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         4.8%         0.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    2/21 (10%)   0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     674          ---          729 (T)      ---         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.601N     P=0.628N     P=0.410      P=0.551N    |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.532N     P=0.532N     P=0.469      P=0.527N    |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.525N     P=0.518N     P=0.482      P=0.515N    |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.545N     P=0.553N     P=0.452      P=0.545N    |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.561N     P=0.489N     P=0.456      P=0.485N    |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.518N     P=0.500N     P=0.500      P=0.500N    |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.321N     (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 17      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Hemorrhage                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     5/50 (10%)   5/50 (10%)   6/50 (12%)   4/49 (8%)   |1/49 (2%)    2/50 (4%)    1/50 (2%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     5/45.04      5/40.17      6/42.31      4/39.14     |1/44.71      2/43.87      1/44.80      1/40.65      | 
|POLY-3 PERCENT (g) |     11.1%        12.5%        14.2%        10.2%       |2.2%         4.6%         2.2%         2.5%         | 
|TERMINAL (d)       |     5/29 (17%)   1/19 (5%)    0/21 (0%)    1/16 (6%)   |0/36 (0%)    2/30 (7%)    1/32 (3%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     729 (T)      537          642          683         |582          730 (T)      730 (T)      730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.495      P=0.430      P=0.340      P=0.470     |P=0.621N     P=0.458      P=0.747      P=0.712      | 
|POLY 3             |     P=0.514N     P=0.557      P=0.456      P=0.587N    |P=0.556N     P=0.493      P=0.760N     P=0.739      | 
|POLY 1.5           |     P=0.488N     P=0.589      P=0.473      P=0.555N    |P=0.544N     P=0.500      P=0.758N     P=0.750      | 
|POLY 6             |     P=0.550N     P=0.511      P=0.440      P=0.631N    |P=0.572N     P=0.483      P=0.758      P=0.724      | 
|LOGISTIC REGRESSION|     P=0.478N     P=0.622N     P=0.431      P=0.579     |P=0.543N     P=0.514      P=0.751N     P=0.737N     | 
|COCH-ARM / FISHERS |     P=0.454N     P=0.630N     P=0.500      P=0.513N    |P=0.525N     P=0.508      P=0.747N     P=0.747N     | 
|ORDER RESTRICTED   |     P=0.581N     (e)          (e)          (e)         |P=0.605N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    2/49 (4%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      2/39.18     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         5.1%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          645         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.044 *    (e)          (e)          P=0.193     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.039 *    (e)          (e)          P=0.207     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.040 *    (e)          (e)          P=0.218     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.038 *    (e)          (e)          P=0.193     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.043 *    (e)          (e)          P=0.256     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.042 *    (e)          (e)          P=0.242     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.020 *    (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 18      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung: Alveolar Epithelium                                                                                                        | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     10/50 (20%)  3/50 (6%)    6/50 (12%)   7/49 (14%)  |3/49 (6%)    1/50 (2%)    1/50 (2%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     10/45.49     3/38.76      6/41.34      7/40.21     |3/44.95      1/44.34      1/44.80      3/40.65      | 
|POLY-3 PERCENT (g) |     22.0%        7.7%         14.5%        17.4%       |6.7%         2.3%         2.2%         7.4%         | 
|TERMINAL (d)       |     8/29 (28%)   2/19 (11%)   6/21 (29%)   3/16 (19%)  |1/36 (3%)    0/30 (0%)    1/32 (3%)    3/25 (12%)   | 
|FIRST INCIDENCE    |     670          642          729 (T)      522         |537          593          730 (T)      730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.305      P=0.157N     P=0.433N     P=0.521     |P=0.394      P=0.330N     P=0.327N     P=0.516      | 
|POLY 3             |     P=0.532N     P=0.065N     P=0.267N     P=0.398N    |P=0.475      P=0.310N     P=0.306N     P=0.615      | 
|POLY 1.5           |     P=0.530N     P=0.050N     P=0.241N     P=0.360N    |P=0.488      P=0.305N     P=0.303N     P=0.639      | 
|POLY 6             |     P=0.541N     P=0.094N     P=0.306N     P=0.455N    |P=0.460      P=0.319N     P=0.311N     P=0.583      | 
|LOGISTIC REGRESSION|     P=0.486      P=0.118N     P=0.331N     P=0.389N    |P=0.517      P=0.274N     P=0.291N     P=0.658      | 
|COCH-ARM / FISHERS |     P=0.530N     P=0.036N*    P=0.207N     P=0.314N    |P=0.507      P=0.301N     P=0.301N     P=0.651N     | 
|ORDER RESTRICTED   |     P=0.203N     (e)          (e)          (e)         |P=0.339      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung: Alveolar Epithelium                                                                                                        | 
|     Metaplasia                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    2/50 (4%)    0/49 (0%)   |0/49 (0%)    1/50 (2%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      2/41.47      0/38.70     |0/44.22      1/44.34      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         4.8%         0.0%        |0.0%         2.3%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          696          ---         |---          593          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.473      (e)          P=0.193      (e)         |P=0.579N     P=0.504      (e)          (e)          | 
|POLY 3             |     P=0.498      (e)          P=0.219      (e)         |P=0.570N     P=0.501      (e)          (e)          | 
|POLY 1.5           |     P=0.518      (e)          P=0.226      (e)         |P=0.568N     P=0.502      (e)          (e)          | 
|POLY 6             |     P=0.466      (e)          P=0.210      (e)         |P=0.572N     P=0.497      (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.508      (e)          P=0.207      (e)         |P=0.486N     P=0.521      (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.541      (e)          P=0.247      (e)         |P=0.565N     P=0.505      (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.233      (e)          (e)          (e)         |P=0.396N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 19      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung: Alveolus                                                                                                                   | 
|     Infiltration Cellular Histiocyte                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     13/50 (26%)  11/50 (22%)  7/50 (14%)   5/49 (10%)  |22/49 (45%)  14/50 (28%)  13/50 (26%)  15/50 (30%)  | 
|POLY-3 RATE (b)    |     13/46.26     11/39.07     7/42.98      5/38.85     |22/45.12     14/45.47     13/45.06     15/43.99     | 
|POLY-3 PERCENT (g) |     28.1%        28.2%        16.3%        12.9%       |48.8%        30.8%        28.9%        34.1%        | 
|TERMINAL (d)       |     7/29 (24%)   9/19 (47%)   4/21 (19%)   4/16 (25%)  |18/36 (50%)  8/30 (27%)   11/32 (34%)  7/25 (28%)   | 
|FIRST INCIDENCE    |     576          642          509          691         |606          481          689          285          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.096N     P=0.322      P=0.265N     P=0.244N    |P=0.436N     P=0.195N     P=0.096N     P=0.453N     | 
|POLY 3             |     P=0.026N*    P=0.594      P=0.137N     P=0.072N    |P=0.136N     P=0.059N     P=0.039N*    P=0.113N     | 
|POLY 1.5           |     P=0.022N*    P=0.513N     P=0.123N     P=0.053N    |P=0.126N     P=0.058N     P=0.038N*    P=0.102N     | 
|POLY 6             |     P=0.034N*    P=0.468      P=0.160N     P=0.109N    |P=0.152N     P=0.064N     P=0.042N*    P=0.136N     | 
|LOGISTIC REGRESSION|     P=0.030N*    P=0.467      P=0.095N     P=0.091N    |P=0.149N     P=0.070N     P=0.038N*    P=0.111N     | 
|COCH-ARM / FISHERS |     P=0.018N*    P=0.408N     P=0.105N     P=0.037N*   |P=0.117N     P=0.062N     P=0.039N*    P=0.093N     | 
|ORDER RESTRICTED   |     P=0.060N     (e)          (e)          (e)         |P=0.058N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung: Interstitium                                                                                                               | 
|     Fibrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    5/50 (10%)   2/50 (4%)    1/49 (2%)   |2/49 (4%)    2/50 (4%)    2/50 (4%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     1/45.05      5/40.23      2/41.34      1/38.77     |2/44.82      2/44.85      2/44.88      2/40.93      | 
|POLY-3 PERCENT (g) |     2.2%         12.4%        4.8%         2.6%        |4.5%         4.5%         4.5%         4.9%         | 
|TERMINAL (d)       |     0/29 (0%)    1/19 (5%)    2/21 (10%)   0/16 (0%)   |1/36 (3%)    0/30 (0%)    1/32 (3%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     726          421          729 (T)      712         |537          575          710          656          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.354N     P=0.055      P=0.390      P=0.626     |P=0.515      P=0.681      P=0.668      P=0.608      | 
|POLY 3             |     P=0.312N     P=0.077      P=0.470      P=0.726     |P=0.553      P=0.694N     P=0.693N     P=0.661      | 
|POLY 1.5           |     P=0.285N     P=0.087      P=0.482      P=0.740     |P=0.572      P=0.690N     P=0.691N     P=0.677      | 
|POLY 6             |     P=0.353N     P=0.063      P=0.455      P=0.707     |P=0.528      P=0.689      P=0.691      P=0.639      | 
|LOGISTIC REGRESSION|     P=0.235N     P=0.192      P=0.405      P=0.681     |P=0.523N     P=0.667N     P=0.683N     P=0.659N     | 
|COCH-ARM / FISHERS |     P=0.254N     P=0.102      P=0.500      P=0.747     |P=0.590N     P=0.684N     P=0.684N     P=0.684N     | 
|ORDER RESTRICTED   |     P=0.291N     (e)          (e)          (e)         |P=0.703      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 20      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lymph Node, Bronchial                                                                                                            | 
|     Pigmentation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/15 (7%)    1/12 (8%)    0/16 (0%)    0/13 (0%)   |0/12 (0%)    0/7 (0%)     2/8 (25%)    0/11 (0%)    | 
|POLY-3 RATE (b)    |     1/13.77      1/10.20      0/12.55      0/11.23     |0/9.43       0/5.24       2/6.96       0/8.09       | 
|POLY-3 PERCENT (g) |     7.3%         9.8%         0.0%         0.0%        |0.0%         0.0%         28.7%        0.0%         | 
|TERMINAL (d)       |     0/7 (0%)     1/5 (20%)    0/4 (0%)     0/4 (0%)    |0/7 (0%)     0/3 (0%)     2/5 (40%)    0/3 (0%)     | 
|FIRST INCIDENCE    |     674          729 (T)      ---          ---         |---          ---          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.256N     P=0.648      P=0.527N     P=0.551N    |P=0.455      (e)          P=0.158      (e)          | 
|POLY 3             |     P=0.226N     P=0.693      P=0.518N     P=0.541N    |P=0.553      (e)          P=0.149      (e)          | 
|POLY 1.5           |     P=0.220N     P=0.701      P=0.505N     P=0.535N    |P=0.577      (e)          P=0.143      (e)          | 
|POLY 6             |     P=0.236N     P=0.680      P=0.537N     P=0.551N    |P=0.506      (e)          P=0.153      (e)          | 
|LOGISTIC REGRESSION|     P=0.223N     P=0.708      P=0.462N     P=0.480N    |(e)          (e)          P=0.158      (e)          | 
|COCH-ARM / FISHERS |     P=0.209N     P=0.701      P=0.484N     P=0.536N    |P=0.595      (e)          P=0.147      (e)          | 
|ORDER RESTRICTED   |     P=0.238N     (e)          (e)          (e)         |P=0.166      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lymph Node, Mediastinal                                                                                                          | 
|     Angiectasis                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/42 (0%)    0/44 (0%)    2/43 (5%)    0/40 (0%)   |0/45 (0%)    1/39 (3%)    0/42 (0%)    0/45 (0%)    | 
|POLY-3 RATE (b)    |     0/38.05      0/35.31      2/35.13      0/31.74     |0/40.22      1/33.18      0/37.39      0/37.14      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         5.7%         0.0%        |0.0%         3.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/27 (0%)    0/19 (0%)    2/16 (13%)   0/14 (0%)   |0/32 (0%)    1/22 (5%)    0/28 (0%)    0/24 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          729 (T)      ---         |---          730 (T)      ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.418      (e)          P=0.132      (e)         |P=0.596N     P=0.425      (e)          (e)          | 
|POLY 3             |     P=0.485      (e)          P=0.219      (e)         |P=0.569N     P=0.462      (e)          (e)          | 
|POLY 1.5           |     P=0.505      (e)          P=0.229      (e)         |P=0.565N     P=0.466      (e)          (e)          | 
|POLY 6             |     P=0.455      (e)          P=0.206      (e)         |P=0.573N     P=0.455      (e)          (e)          | 
|LOGISTIC REGRESSION|     (e)          (e)          P=0.132      (e)         |(e)          P=0.425      (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.532      (e)          P=0.253      (e)         |P=0.560N     P=0.464      (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.235      (e)          (e)          (e)         |P=0.363N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 21      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lymph Node, Mesenteric                                                                                                           | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    2/50 (4%)    0/50 (0%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    1/49 (2%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      2/42.04      0/39.41     |0/44.62      0/43.87      0/44.80      1/40.30      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         4.8%         0.0%        |0.0%         0.0%         0.0%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          558          ---         |---          ---          ---          549          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.524      (e)          P=0.216      (e)         |P=0.190      (e)          (e)          P=0.491      | 
|POLY 3             |     P=0.499      (e)          P=0.222      (e)         |P=0.186      (e)          (e)          P=0.480      | 
|POLY 1.5           |     P=0.521      (e)          P=0.228      (e)         |P=0.190      (e)          (e)          P=0.486      | 
|POLY 6             |     P=0.464      (e)          P=0.215      (e)         |P=0.182      (e)          (e)          P=0.471      | 
|LOGISTIC REGRESSION|     P=0.579      (e)          P=0.312      (e)         |P=0.284      (e)          (e)          P=0.614      | 
|COCH-ARM / FISHERS |     P=0.546      (e)          P=0.247      (e)         |P=0.195      (e)          (e)          P=0.495      | 
|ORDER RESTRICTED   |     P=0.236      (e)          (e)          (e)         |P=0.104      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Galactocele                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    2/50 (4%)    3/50 (6%)    2/50 (4%)   |1/50 (2%)    0/50 (0%)    2/50 (4%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     3/45.55      2/38.66      3/41.36      2/39.83     |1/44.62      0/43.87      2/44.81      2/40.65      | 
|POLY-3 PERCENT (g) |     6.6%         5.2%         7.3%         5.0%        |2.2%         0.0%         4.5%         4.9%         | 
|TERMINAL (d)       |     2/29 (7%)    1/19 (5%)    2/21 (10%)   1/16 (6%)   |1/36 (3%)    0/30 (0%)    1/32 (3%)    2/25 (8%)    | 
|FIRST INCIDENCE    |     576          670          726          610         |730 (T)      ---          726          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.512      P=0.667N     P=0.524      P=0.673     |P=0.161      P=0.536N     P=0.463      P=0.373      | 
|POLY 3             |     P=0.511N     P=0.574N     P=0.617      P=0.561N    |P=0.218      P=0.503N     P=0.501      P=0.468      | 
|POLY 1.5           |     P=0.496N     P=0.542N     P=0.636      P=0.534N    |P=0.229      P=0.502N     P=0.501      P=0.481      | 
|POLY 6             |     P=0.535N     P=0.620N     P=0.593      P=0.598N    |P=0.205      P=0.507N     P=0.501      P=0.449      | 
|LOGISTIC REGRESSION|     P=0.519N     P=0.529N     P=0.626      P=0.468N    |P=0.164      (e)          P=0.480      P=0.373      | 
|COCH-ARM / FISHERS |     P=0.479N     P=0.500N     P=0.661N     P=0.500N    |P=0.245      P=0.500N     P=0.500      P=0.500      | 
|ORDER RESTRICTED   |     P=0.594N     (e)          (e)          (e)         |P=0.240      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 22      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mesentery                                                                                                                        | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     7/7 (100%)   11/11 (100%) 11/11 (100%) 12/13 (92%) |11/11 (100%) 15/15 (100%) 23/23 (100%) 13/14 (93%)  | 
|POLY-3 RATE (b)    |     7/7.00       11/11.00     11/11.00     12/12.46    |11/11.00     15/15.00     23/23.00     13/13.79     | 
|POLY-3 PERCENT (g) |     100.0%       100.0%       100.0%       96.3%       |100.0%       100.0%       100.0%       94.3%        | 
|TERMINAL (d)       |     4/4 (100%)   5/5 (100%)   3/3 (100%)   5/5 (100%)  |8/8 (100%)   8/8 (100%)   15/15 (100%) 8/8 (100%)   | 
|FIRST INCIDENCE    |     621          565          509          465         |495          593          565          506          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.115      (e)          (e)          P=0.084     |P=0.278      (e)          (e)          P=0.272      | 
|POLY 3             |     P=0.501N     (e)          (e)          P=0.928N    |P=0.255N     (e)          (e)          P=0.648N     | 
|POLY 1.5           |     P=0.340N     (e)          (e)          P=0.781N    |P=0.223N     (e)          (e)          P=0.596N     | 
|POLY 6             |     P=0.933N     (e)          (e)          P=1.000N    |P=0.341N     (e)          (e)          P=0.762N     | 
|LOGISTIC REGRESSION|     P=0.361N     (e)          (e)          P=0.909N    |P=0.194N     (e)          (e)          P=0.537N     | 
|COCH-ARM / FISHERS |     P=0.239N     (e)          (e)          P=0.650N    |P=0.196N     (e)          (e)          P=0.560N     | 
|ORDER RESTRICTED   |     P=0.265N     (e)          (e)          (e)         |P=0.164N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose                                                                                                                             | 
|     Foreign Body                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    3/50 (6%)    1/50 (2%)    2/50 (4%)   |2/49 (4%)    2/50 (4%)    0/49 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/45.41      3/39.28      1/41.47      2/39.51     |2/44.65      2/43.98      0/43.98      0/40.65      | 
|POLY-3 PERCENT (g) |     4.4%         7.6%         2.4%         5.1%        |4.5%         4.6%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    1/16 (6%)   |1/36 (3%)    1/30 (3%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     626          621          698          705         |606          703          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.553N     P=0.345      P=0.567N     P=0.523     |P=0.113N     P=0.652      P=0.250N     P=0.288N     | 
|POLY 3             |     P=0.494N     P=0.434      P=0.532N     P=0.643     |P=0.090N     P=0.689      P=0.240N     P=0.259N     | 
|POLY 1.5           |     P=0.476N     P=0.463      P=0.519N     P=0.666     |P=0.088N     P=0.693N     P=0.239N     P=0.248N     | 
|POLY 6             |     P=0.521N     P=0.395      P=0.548N     P=0.609     |P=0.093N     P=0.679      P=0.242N     P=0.274N     | 
|LOGISTIC REGRESSION|     P=0.462N     P=0.569      P=0.492N     P=0.655     |P=0.084N     P=0.686N     P=0.232N     P=0.213N     | 
|COCH-ARM / FISHERS |     P=0.454N     P=0.500      P=0.500N     P=0.691N    |P=0.085N     P=0.684N     P=0.247N     P=0.242N     | 
|ORDER RESTRICTED   |     P=0.501N     (e)          (e)          (e)         |P=0.131N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 23      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose                                                                                                                             | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    4/50 (8%)    2/50 (4%)    5/50 (10%)  |1/49 (2%)    5/50 (10%)   3/49 (6%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     4/45.41      4/39.06      2/41.94      5/40.45     |1/44.22      5/43.98      3/43.98      0/40.65      | 
|POLY-3 PERCENT (g) |     8.8%         10.2%        4.8%         12.4%       |2.3%         11.4%        6.8%         0.0%         | 
|TERMINAL (d)       |     3/29 (10%)   2/19 (11%)   0/21 (0%)    1/16 (6%)   |1/36 (3%)    4/30 (13%)   3/32 (9%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     626          621          589          581         |730 (T)      703          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.305      P=0.435      P=0.445N     P=0.264     |P=0.297N     P=0.071      P=0.263      P=0.573N     | 
|POLY 3             |     P=0.422      P=0.558      P=0.374N     P=0.428     |P=0.235N     P=0.100      P=0.303      P=0.517N     | 
|POLY 1.5           |     P=0.438      P=0.596      P=0.359N     P=0.459     |P=0.215N     P=0.103      P=0.304      P=0.508N     | 
|POLY 6             |     P=0.398      P=0.503      P=0.393N     P=0.385     |P=0.263N     P=0.095      P=0.302      P=0.528N     | 
|LOGISTIC REGRESSION|     P=0.446      P=0.567      P=0.320N     P=0.489     |P=0.266N     P=0.087      P=0.263      (e)          | 
|COCH-ARM / FISHERS |     P=0.457      P=0.643N     P=0.339N     P=0.500     |P=0.190N     P=0.107      P=0.309      P=0.495N     | 
|ORDER RESTRICTED   |     P=0.371      (e)          (e)          (e)         |P=0.122N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose: Goblet Cell                                                                                                                | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    1/50 (2%)    4/50 (8%)   |1/49 (2%)    3/50 (6%)    3/49 (6%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     1/45.04      1/38.67      1/41.45      4/39.56     |1/44.22      3/43.87      3/43.98      1/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         2.6%         2.4%         10.1%       |2.3%         6.8%         6.8%         2.5%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    3/16 (19%)  |1/36 (3%)    3/30 (10%)   3/32 (9%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     729 (T)      667          702          691         |730 (T)      730 (T)      730 (T)      730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.029 *    P=0.654      P=0.707      P=0.056     |P=0.562      P=0.242      P=0.263      P=0.678      | 
|POLY 3             |     P=0.056      P=0.726      P=0.742      P=0.141     |P=0.548N     P=0.302      P=0.303      P=0.742      | 
|POLY 1.5           |     P=0.060      P=0.741      P=0.750      P=0.157     |P=0.527N     P=0.307      P=0.304      P=0.751      | 
|POLY 6             |     P=0.051      P=0.702      P=0.733      P=0.120     |P=0.577N     P=0.294      P=0.302      P=0.728      | 
|LOGISTIC REGRESSION|     P=0.044 *    P=0.731      P=0.730      P=0.076     |P=0.562      P=0.242      P=0.263      P=0.678      | 
|COCH-ARM / FISHERS |     P=0.065      P=0.753N     P=0.753N     P=0.181     |P=0.494N     P=0.316      P=0.309      P=0.747N     | 
|ORDER RESTRICTED   |     P=0.049 *    (e)          (e)          (e)         |P=0.391      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 24      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose: Nasolacrimal Duct                                                                                                          | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |2/49 (4%)    0/50 (0%)    1/49 (2%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     1/45.04      0/38.44      0/41.34      0/39.41     |2/44.22      0/43.87      1/43.98      1/41.13      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         0.0%         0.0%        |4.5%         0.0%         2.3%         2.4%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |2/36 (6%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     729 (T)      ---          ---          ---         |730 (T)      ---          730 (T)      589          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.405N     P=0.584N     P=0.564N     P=0.619N    |P=0.576N     P=0.279N     P=0.541N     P=0.589N     | 
|POLY 3             |     P=0.318N     P=0.531N     P=0.517N     P=0.527N    |P=0.504N     P=0.239N     P=0.502N     P=0.525N     | 
|POLY 1.5           |     P=0.329N     P=0.518N     P=0.510N     P=0.515N    |P=0.501N     P=0.236N     P=0.501N     P=0.512N     | 
|POLY 6             |     P=0.302N     P=0.552N     P=0.526N     P=0.543N    |P=0.505N     P=0.244N     P=0.503N     P=0.543N     | 
|LOGISTIC REGRESSION|     P=0.405N     (e)          (e)          (e)         |P=0.503N     (e)          P=0.541N     P=0.491N     | 
|COCH-ARM / FISHERS |     P=0.343N     P=0.500N     P=0.500N     P=0.500N    |P=0.496N     P=0.242N     P=0.500N     P=0.492N     | 
|ORDER RESTRICTED   |     P=0.145N     (e)          (e)          (e)         |P=0.292N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose: Olfactory Epithelium                                                                                                       | 
|     Degeneration Hyaline                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    8/50 (16%)   2/50 (4%)    3/50 (6%)   |12/49 (24%)  18/50 (36%)  15/49 (31%)  28/50 (56%)  | 
|POLY-3 RATE (b)    |     2/45.04      8/40.75      2/41.39      3/39.71     |12/46.19     18/45.33     15/45.52     28/46.89     | 
|POLY-3 PERCENT (g) |     4.4%         19.6%        4.8%         7.6%        |26.0%        39.7%        33.0%        59.7%        | 
|TERMINAL (d)       |     2/29 (7%)    2/19 (11%)   1/21 (5%)    1/16 (6%)   |9/36 (25%)   13/30 (43%)  10/32 (31%)  14/25 (56%)  | 
|FIRST INCIDENCE    |     729 (T)      565          717          675         |481          481          581          285          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.433N     P=0.017 *    P=0.580      P=0.288     |P<0.001 **   P=0.068      P=0.253      P<0.001 **   | 
|POLY 3             |     P=0.349N     P=0.030 *    P=0.663      P=0.443     |P<0.001 **   P=0.117      P=0.307      P<0.001 **   | 
|POLY 1.5           |     P=0.317N     P=0.036 *    P=0.676      P=0.468     |P<0.001 **   P=0.131      P=0.312      P<0.001 **   | 
|POLY 6             |     P=0.395N     P=0.023 *    P=0.648      P=0.408     |P<0.001 **   P=0.100      P=0.309      P<0.001 **   | 
|LOGISTIC REGRESSION|     P=0.285N     P=0.066      P=0.614      P=0.368     |P=0.002 **   P=0.156      P=0.330      P=0.004 **   | 
|COCH-ARM / FISHERS |     P=0.281N     P=0.046 *    P=0.691N     P=0.500     |P<0.001 **   P=0.152      P=0.326      P<0.001 **   | 
|ORDER RESTRICTED   |     P=0.243      (e)          (e)          (e)         |P<0.001 **   (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 25      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose: Respiratory Epithelium                                                                                                     | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    1/50 (2%)    1/50 (2%)    1/50 (2%)   |0/49 (0%)    0/50 (0%)    0/49 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     4/45.41      1/38.82      1/41.34      1/39.41     |0/44.22      0/43.87      0/43.98      0/40.65      | 
|POLY-3 PERCENT (g) |     8.8%         2.6%         2.4%         2.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     3/29 (10%)   0/19 (0%)    1/21 (5%)    1/16 (6%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     626          621          729 (T)      729 (T)     |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.271N     P=0.288N     P=0.275N     P=0.359N    |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.167N     P=0.230N     P=0.208N     P=0.224N    |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.167N     P=0.206N     P=0.196N     P=0.204N    |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.169N     P=0.267N     P=0.225N     P=0.257N    |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.192N     P=0.188N     P=0.213N     P=0.249N    |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.169N     P=0.181N     P=0.181N     P=0.181N    |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.109N     (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Nose: Respiratory Epithelium                                                                                                     | 
|     Metaplasia                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |0/49 (0%)    2/50 (4%)    0/49 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      0/39.41     |0/44.22      2/43.87      0/43.98      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |0.0%         4.6%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    2/30 (7%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          730 (T)      ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.469N     P=0.199      (e)          (e)          | 
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.421N     P=0.235      (e)          (e)          | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.413N     P=0.238      (e)          (e)          | 
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.432N     P=0.230      (e)          (e)          | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          P=0.199      (e)          (e)          | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.402N     P=0.253      (e)          (e)          | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |P=0.262N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 26      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Ovary                                                                                                                            | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |8/50 (16%)   9/50 (18%)   8/50 (16%)   5/50 (10%)   | 
|POLY-3 RATE (b)    |                                                        |8/45.78      9/44.10      8/44.96      5/40.73      | 
|POLY-3 PERCENT (g) |                                                        |17.5%        20.4%        17.8%        12.3%        | 
|TERMINAL (d)       |                                                        |5/36 (14%)   8/30 (27%)   7/32 (22%)   4/25 (16%)   | 
|FIRST INCIDENCE    |                                                        |540          670          689          712          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.400N     P=0.370      P=0.529      P=0.498N     | 
|POLY 3             |                                                        |P=0.265N     P=0.466      P=0.593      P=0.355N     | 
|POLY 1.5           |                                                        |P=0.235N     P=0.482      P=0.598      P=0.322N     | 
|POLY 6             |                                                        |P=0.309N     P=0.442      P=0.583      P=0.403N     | 
|LOGISTIC REGRESSION|                                                        |P=0.263N     P=0.490      P=0.606N     P=0.323N     | 
|COCH-ARM / FISHERS |                                                        |P=0.192N     P=0.500      P=0.607N     P=0.277N     | 
|ORDER RESTRICTED   |                                                        |P=0.331N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pancreas: Acinus                                                                                                                 | 
|     Atrophy                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    1/50 (2%)    2/50 (4%)   |2/49 (4%)    1/50 (2%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/45.05      2/38.82      1/41.34      2/39.59     |2/44.22      1/43.89      1/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     4.4%         5.2%         2.4%         5.1%        |4.5%         2.3%         2.2%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    1/19 (5%)    1/21 (5%)    1/16 (6%)   |2/36 (6%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     726          621          729 (T)      684         |730 (T)      726          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.490      P=0.566      P=0.610N     P=0.497     |P=0.209N     P=0.552N     P=0.541N     P=0.322N     | 
|POLY 3             |     P=0.585N     P=0.639      P=0.530N     P=0.647     |P=0.162N     P=0.503N     P=0.495N     P=0.256N     | 
|POLY 1.5           |     P=0.574N     P=0.664      P=0.518N     P=0.668     |P=0.158N     P=0.498N     P=0.495N     P=0.247N     | 
|POLY 6             |     P=0.579      P=0.602      P=0.545N     P=0.616     |P=0.167N     P=0.510N     P=0.497N     P=0.270N     | 
|LOGISTIC REGRESSION|     P=0.581      P=0.623      P=0.595N     P=0.572     |P=0.198N     P=0.535N     P=0.541N     (e)          | 
|COCH-ARM / FISHERS |     P=0.561N     P=0.691N     P=0.500N     P=0.691N    |P=0.150N     P=0.492N     P=0.492N     P=0.242N     | 
|ORDER RESTRICTED   |     P=0.628N     (e)          (e)          (e)         |P=0.134N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 27      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis                                                                                                   | 
|     Angiectasis                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |2/49 (4%)    0/50 (0%)    2/50 (4%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      0/39.41     |2/45.48      0/43.87      2/45.59      2/40.97      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |4.4%         0.0%         4.4%         4.9%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |509          ---          433          682          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.397      P=0.240N     P=0.683      P=0.645      | 
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.414      P=0.245N     P=0.693N     P=0.656      | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.428      P=0.240N     P=0.690N     P=0.674      | 
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.398      P=0.253N     P=0.690      P=0.632      | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.601N     P=0.189N     P=0.642N     P=0.569N     | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.450      P=0.242N     P=0.684N     P=0.684N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |P=0.400      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis                                                                                                   | 
|     Cyst                                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    1/50 (2%)    1/50 (2%)   |5/49 (10%)   3/50 (6%)    3/50 (6%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     1/45.45      0/38.44      1/41.43      1/39.53     |5/44.71      3/44.30      3/45.59      3/41.07      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         2.4%         2.5%        |11.2%        6.8%         6.6%         7.3%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |4/36 (11%)   2/30 (7%)    2/32 (6%)    2/25 (8%)    | 
|FIRST INCIDENCE    |     611          ---          708          698         |582          606          433          611          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.417      P=0.531N     P=0.721      P=0.686     |P=0.451N     P=0.434N     P=0.408N     P=0.522N     | 
|POLY 3             |     P=0.468      P=0.533N     P=0.740      P=0.729     |P=0.348N     P=0.361N     P=0.346N     P=0.404N     | 
|POLY 1.5           |     P=0.475      P=0.519N     P=0.748      P=0.743     |P=0.334N     P=0.354N     P=0.345N     P=0.380N     | 
|POLY 6             |     P=0.457      P=0.555N     P=0.729      P=0.707     |P=0.366N     P=0.373N     P=0.349N     P=0.436N     | 
|LOGISTIC REGRESSION|     P=0.484      P=0.389N     P=0.732N     P=0.723N    |P=0.289N     P=0.345N     P=0.336N     P=0.374N     | 
|COCH-ARM / FISHERS |     P=0.482      P=0.500N     P=0.753N     P=0.753N    |P=0.311N     P=0.346N     P=0.346N     P=0.346N     | 
|ORDER RESTRICTED   |     P=0.506      (e)          (e)          (e)         |P=0.373N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 28      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis                                                                                                   | 
|     Hemorrhage                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    1/50 (2%)    3/50 (6%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     0/45.04      1/38.97      1/41.40      3/40.50     |0/44.22      0/43.87      0/44.80      1/40.84      | 
|POLY-3 PERCENT (g) |     0.0%         2.6%         2.4%         7.4%        |0.0%         0.0%         0.0%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          565          715          578         |---          ---          ---          682          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.045 *    P=0.487      P=0.459      P=0.091     |P=0.179      (e)          (e)          P=0.468      | 
|POLY 3             |     P=0.050      P=0.471      P=0.483      P=0.100     |P=0.189      (e)          (e)          P=0.484      | 
|POLY 1.5           |     P=0.054      P=0.484      P=0.490      P=0.108     |P=0.193      (e)          (e)          P=0.492      | 
|POLY 6             |     P=0.045 *    P=0.453      P=0.475      P=0.091     |P=0.183      (e)          (e)          P=0.473      | 
|LOGISTIC REGRESSION|     P=0.072      P=0.682      P=0.470      P=0.189     |P=0.202      (e)          (e)          P=0.506      | 
|COCH-ARM / FISHERS |     P=0.059      P=0.500      P=0.500      P=0.121     |P=0.200      (e)          (e)          P=0.505      | 
|ORDER RESTRICTED   |     P=0.029 *    (e)          (e)          (e)         |P=0.107      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis                                                                                                   | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    5/50 (10%)   6/50 (12%)   5/50 (10%)  |9/49 (18%)   9/50 (18%)   8/50 (16%)   8/50 (16%)   | 
|POLY-3 RATE (b)    |     4/45.41      5/39.05      6/42.91      5/40.28     |9/45.17      9/45.04      8/45.41      8/41.69      | 
|POLY-3 PERCENT (g) |     8.8%         12.8%        14.0%        12.4%       |19.9%        20.0%        17.6%        19.2%        | 
|TERMINAL (d)       |     3/29 (10%)   3/19 (16%)   2/21 (10%)   2/16 (13%)  |6/36 (17%)   6/30 (20%)   5/32 (16%)   4/25 (16%)   | 
|FIRST INCIDENCE    |     626          621          509          548         |537          537          610          549          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.260      P=0.278      P=0.249      P=0.251     |P=0.441      P=0.484      P=0.566N     P=0.458      | 
|POLY 3             |     P=0.381      P=0.406      P=0.334      P=0.425     |P=0.493N     P=0.601      P=0.495N     P=0.573N     | 
|POLY 1.5           |     P=0.408      P=0.447      P=0.348      P=0.458     |P=0.461N     P=0.596N     P=0.490N     P=0.536N     | 
|POLY 6             |     P=0.341      P=0.348      P=0.318      P=0.379     |P=0.533N     P=0.585      P=0.503N     P=0.595      | 
|LOGISTIC REGRESSION|     P=0.430      P=0.382      P=0.431      P=0.469     |P=0.445N     P=0.583N     P=0.484N     P=0.527N     | 
|COCH-ARM / FISHERS |     P=0.440      P=0.500      P=0.370      P=0.500     |P=0.409N     P=0.584N     P=0.482N     P=0.482N     | 
|ORDER RESTRICTED   |     P=0.417      (e)          (e)          (e)         |P=0.657N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 29      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pleura                                                                                                                           | 
|     Fibrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    12/50 (24%)  5/50 (10%)   1/50 (2%)   |18/48 (38%)  6/50 (12%)   9/50 (18%)   12/50 (24%)  | 
|POLY-3 RATE (b)    |     2/45.04      12/40.34     5/41.86      1/39.48     |18/44.09     6/44.40      9/45.00      12/43.35     | 
|POLY-3 PERCENT (g) |     4.4%         29.8%        12.0%        2.5%        |40.8%        13.5%        20.0%        27.7%        | 
|TERMINAL (d)       |     2/29 (7%)    7/19 (37%)   3/21 (14%)   0/16 (0%)   |17/36 (47%)  4/30 (13%)   7/32 (22%)   6/25 (24%)   | 
|FIRST INCIDENCE    |     729 (T)      579          618          712         |656          575          689          285          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.122N     P<0.001 **   P=0.126      P=0.694N    |P=0.545      P=0.015N*    P=0.064N     P=0.463N     | 
|POLY 3             |     P=0.065N     P<0.001 **   P=0.187      P=0.546N    |P=0.242N     P=0.003N**   P=0.025N*    P=0.139N     | 
|POLY 1.5           |     P=0.050N     P=0.002 **   P=0.199      P=0.526N    |P=0.233N     P=0.003N**   P=0.025N*    P=0.124N     | 
|POLY 6             |     P=0.093N     P<0.001 **   P=0.173      P=0.575N    |P=0.257N     P=0.003N**   P=0.026N*    P=0.167N     | 
|LOGISTIC REGRESSION|     P=0.052N     P=0.002 **   P=0.171      P=0.653N    |P=0.278N     P=0.005N**   P=0.032N*    P=0.134N     | 
|COCH-ARM / FISHERS |     P=0.041N*    P=0.004 **   P=0.218      P=0.500N    |P=0.226N     P=0.003N**   P=0.026N*    P=0.109N     | 
|ORDER RESTRICTED   |     P=0.027N*    (e)          (e)          (e)         |P=0.016N*    (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pleura                                                                                                                           | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     11/50 (22%)  2/50 (4%)    1/50 (2%)    5/50 (10%)  |21/48 (44%)  20/50 (40%)  13/50 (26%)  5/50 (10%)   | 
|POLY-3 RATE (b)    |     11/46.66     2/38.76      1/41.92      5/40.12     |21/44.58     20/45.36     13/45.06     5/41.90      | 
|POLY-3 PERCENT (g) |     23.6%        5.2%         2.4%         12.5%       |47.1%        44.1%        28.9%        11.9%        | 
|TERMINAL (d)       |     5/29 (17%)   1/19 (5%)    0/21 (0%)    2/16 (13%)  |17/36 (47%)  15/30 (50%)  11/32 (34%)  2/25 (8%)    | 
|FIRST INCIDENCE    |     576          642          546          581         |634          481          689          285          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.275N     P=0.059N     P=0.011N*    P=0.330N    |P=0.002N**   P=0.407      P=0.135N     P=0.007N**   | 
|POLY 3             |     P=0.122N     P=0.018N*    P=0.003N**   P=0.145N    |P<0.001N**   P=0.470N     P=0.055N     P<0.001N**   | 
|POLY 1.5           |     P=0.127N     P=0.012N*    P=0.003N**   P=0.116N    |P<0.001N**   P=0.450N     P=0.053N     P<0.001N**   | 
|POLY 6             |     P=0.119N     P=0.032N*    P=0.005N**   P=0.198N    |P<0.001N**   P=0.510N     P=0.062N     P<0.001N**   | 
|LOGISTIC REGRESSION|     P=0.149N     P=0.009N**   P<0.001N**   P=0.093N    |P<0.001N**   P=0.502N     P=0.058N     P<0.001N**   | 
|COCH-ARM / FISHERS |     P=0.143N     P=0.007N**   P=0.002N**   P=0.086N    |P<0.001N**   P=0.432N     P=0.051N     P<0.001N**   | 
|ORDER RESTRICTED   |     P=0.006N**   (e)          (e)          (e)         |P<0.001N**   (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 30      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Preputial Gland                                                                                                                  | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    0/50 (0%)    2/50 (4%)   |                                                    | 
|POLY-3 RATE (b)    |     1/45.11      1/38.82      0/41.34      2/39.94     |                                                    | 
|POLY-3 PERCENT (g) |     2.2%         2.6%         0.0%         5.0%        |                                                    | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |                                                    | 
|FIRST INCIDENCE    |     712          621          ---          642         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.332      P=0.689      P=0.546N     P=0.394     |                                                    | 
|POLY 3             |     P=0.356      P=0.726      P=0.517N     P=0.458     |                                                    | 
|POLY 1.5           |     P=0.364      P=0.742      P=0.510N     P=0.476     |                                                    | 
|POLY 6             |     P=0.345      P=0.702      P=0.526N     P=0.432     |                                                    | 
|LOGISTIC REGRESSION|     P=0.386      P=0.749N     P=0.527N     P=0.521     |                                                    | 
|COCH-ARM / FISHERS |     P=0.373      P=0.753N     P=0.500N     P=0.500     |                                                    | 
|ORDER RESTRICTED   |     P=0.241      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Preputial Gland                                                                                                                  | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    4/50 (8%)    0/50 (0%)   |                                                    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      4/43.09      0/39.41     |                                                    | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         9.3%         0.0%        |                                                    | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |                                                    | 
|FIRST INCIDENCE    |     ---          ---          556          ---         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.404      (e)          P=0.052      (e)         |                                                    | 
|POLY 3             |     P=0.372      (e)          P=0.054      (e)         |                                                    | 
|POLY 1.5           |     P=0.401      (e)          P=0.057      (e)         |                                                    | 
|POLY 6             |     P=0.326      (e)          P=0.052      (e)         |                                                    | 
|LOGISTIC REGRESSION|     P=0.498      (e)          P=0.125      (e)         |                                                    | 
|COCH-ARM / FISHERS |     P=0.436      (e)          P=0.059      (e)         |                                                    | 
|ORDER RESTRICTED   |     P=0.104      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 31      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Prostate                                                                                                                         | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    0/50 (0%)    3/50 (6%)   |                                                    | 
|POLY-3 RATE (b)    |     1/45.04      1/38.72      0/41.34      3/39.92     |                                                    | 
|POLY-3 PERCENT (g) |     2.2%         2.6%         0.0%         7.5%        |                                                    | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    0/21 (0%)    1/16 (6%)   |                                                    | 
|FIRST INCIDENCE    |     729 (T)      652          ---          581         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.101      P=0.668      P=0.564N     P=0.159     |                                                    | 
|POLY 3             |     P=0.152      P=0.726      P=0.517N     P=0.263     |                                                    | 
|POLY 1.5           |     P=0.157      P=0.741      P=0.510N     P=0.281     |                                                    | 
|POLY 6             |     P=0.145      P=0.702      P=0.526N     P=0.238     |                                                    | 
|LOGISTIC REGRESSION|     P=0.155      P=0.750      (e)          P=0.275     |                                                    | 
|COCH-ARM / FISHERS |     P=0.163      P=0.753N     P=0.500N     P=0.309     |                                                    | 
|ORDER RESTRICTED   |     P=0.081      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Prostate                                                                                                                         | 
|     Inflammation                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     10/50 (20%)  10/50 (20%)  14/50 (28%)  12/50 (24%) |                                                    | 
|POLY-3 RATE (b)    |     10/46.65     10/42.64     14/44.71     12/41.80    |                                                    | 
|POLY-3 PERCENT (g) |     21.4%        23.5%        31.3%        28.7%       |                                                    | 
|TERMINAL (d)       |     2/29 (7%)    1/19 (5%)    5/21 (24%)   3/16 (19%)  |                                                    | 
|FIRST INCIDENCE    |     576          421          546          563         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.127      P=0.342      P=0.128      P=0.117     |                                                    | 
|POLY 3             |     P=0.202      P=0.510      P=0.201      P=0.293     |                                                    | 
|POLY 1.5           |     P=0.236      P=0.550      P=0.216      P=0.340     |                                                    | 
|POLY 6             |     P=0.161      P=0.449      P=0.185      P=0.234     |                                                    | 
|LOGISTIC REGRESSION|     P=0.365      P=0.262N     P=0.346      P=0.453     |                                                    | 
|COCH-ARM / FISHERS |     P=0.285      P=0.598N     P=0.241      P=0.405     |                                                    | 
|ORDER RESTRICTED   |     P=0.281      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 32      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Cyst Epithelial Inclusion                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     5/50 (10%)   2/50 (4%)    2/50 (4%)    3/50 (6%)   |0/50 (0%)    1/50 (2%)    1/50 (2%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     5/45.45      2/38.78      2/41.43      3/39.41     |0/44.62      1/43.87      1/44.80      1/40.73      | 
|POLY-3 PERCENT (g) |     11.0%        5.2%         4.8%         7.6%        |0.0%         2.3%         2.2%         2.5%         | 
|TERMINAL (d)       |     4/29 (14%)   1/19 (5%)    1/21 (5%)    3/16 (19%)  |0/36 (0%)    1/30 (3%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     611          636          708          729 (T)     |---          730 (T)      730 (T)      712          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.559      P=0.377N     P=0.343N     P=0.632     |P=0.308      P=0.464      P=0.477      P=0.441      | 
|POLY 3             |     P=0.402N     P=0.285N     P=0.255N     P=0.437N    |P=0.350      P=0.497      P=0.501      P=0.482      | 
|POLY 1.5           |     P=0.394N     P=0.254N     P=0.239N     P=0.401N    |P=0.364      P=0.498      P=0.500      P=0.489      | 
|POLY 6             |     P=0.416N     P=0.334N     P=0.276N     P=0.491N    |P=0.331      P=0.493      P=0.501      P=0.472      | 
|LOGISTIC REGRESSION|     P=0.466N     P=0.288N     P=0.264N     P=0.526N    |P=0.332      P=0.464      P=0.477      P=0.474      | 
|COCH-ARM / FISHERS |     P=0.387N     P=0.218N     P=0.218N     P=0.357N    |P=0.384      P=0.500      P=0.500      P=0.500      | 
|ORDER RESTRICTED   |     P=0.284N     (e)          (e)          (e)         |P=0.311      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Hyperkeratosis                                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    1/50 (2%)    2/50 (4%)   |1/50 (2%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.27      0/38.44      1/41.66      2/39.65     |1/45.28      0/43.87      1/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         2.4%         5.0%        |2.2%         0.0%         2.2%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    1/32 (3%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     670          ---          642          684         |509          ---          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.179      P=0.608N     P=0.724      P=0.375     |P=0.438N     P=0.504N     P=0.747      P=0.504N     | 
|POLY 3             |     P=0.202      P=0.532N     P=0.742      P=0.454     |P=0.417N     P=0.506N     P=0.758      P=0.521N     | 
|POLY 1.5           |     P=0.206      P=0.518N     P=0.750      P=0.474     |P=0.413N     P=0.503N     P=0.759      P=0.513N     | 
|POLY 6             |     P=0.195      P=0.554N     P=0.732      P=0.425     |P=0.422N     P=0.511N     P=0.757      P=0.533N     | 
|LOGISTIC REGRESSION|     P=0.206      P=0.482N     P=0.728N     P=0.483     |P=0.338N     P=0.488N     P=0.755N     P=0.338N     | 
|COCH-ARM / FISHERS |     P=0.209      P=0.500N     P=0.753N     P=0.500     |P=0.405N     P=0.500N     P=0.753N     P=0.500N     | 
|ORDER RESTRICTED   |     P=0.192      (e)          (e)          (e)         |P=0.273N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 33      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    2/50 (4%)    0/50 (0%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      2/42.40      0/39.41     |0/44.62      0/43.87      0/44.80      1/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         4.7%         0.0%        |0.0%         0.0%         0.0%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |     ---          ---          396          ---         |---          ---          ---          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.546      (e)          P=0.228      (e)         |P=0.160      (e)          (e)          P=0.427      | 
|POLY 3             |     P=0.498      (e)          P=0.224      (e)         |P=0.188      (e)          (e)          P=0.481      | 
|POLY 1.5           |     P=0.520      (e)          P=0.230      (e)         |P=0.192      (e)          (e)          P=0.489      | 
|POLY 6             |     P=0.462      (e)          P=0.216      (e)         |P=0.182      (e)          (e)          P=0.471      | 
|LOGISTIC REGRESSION|     P=0.609      (e)          P=0.443      (e)         |(e)          (e)          (e)          P=0.427      | 
|COCH-ARM / FISHERS |     P=0.546      (e)          P=0.247      (e)         |P=0.198      (e)          (e)          P=0.500      | 
|ORDER RESTRICTED   |     P=0.237      (e)          (e)          (e)         |P=0.105      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Accessory Spleen                                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    3/50 (6%)    1/50 (2%)   |1/49 (2%)    0/50 (0%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.04      0/38.44      3/41.55      1/39.95     |1/44.82      0/43.87      2/45.71      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         7.2%         2.5%        |2.2%         0.0%         4.4%         0.0%         | 
|TERMINAL (d)       |     1/29 (3%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     729 (T)      ---          691          563         |537          ---          401          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.301      P=0.584N     P=0.227      P=0.686     |P=0.489N     P=0.496N     P=0.496      P=0.509N     | 
|POLY 3             |     P=0.375      P=0.531N     P=0.277      P=0.733     |P=0.488N     P=0.504N     P=0.507      P=0.519N     | 
|POLY 1.5           |     P=0.387      P=0.518N     P=0.288      P=0.746     |P=0.475N     P=0.501N     P=0.507      P=0.510N     | 
|POLY 6             |     P=0.356      P=0.552N     P=0.263      P=0.715     |P=0.503N     P=0.510N     P=0.505      P=0.532N     | 
|LOGISTIC REGRESSION|     P=0.386      (e)          P=0.250      P=0.710N    |P=0.259N     P=0.475N     P=0.590      P=0.356N     | 
|COCH-ARM / FISHERS |     P=0.400      P=0.500N     P=0.309      P=0.753N    |P=0.457N     P=0.495N     P=0.508      P=0.495N     | 
|ORDER RESTRICTED   |     P=0.248      (e)          (e)          (e)         |P=0.345N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 34      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Fibrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    3/50 (6%)    4/50 (8%)    6/50 (12%)  |0/49 (0%)    1/50 (2%)    1/50 (2%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     2/45.19      3/39.04      4/42.39      6/39.97     |0/44.22      1/44.54      1/45.34      1/40.84      | 
|POLY-3 PERCENT (g) |     4.4%         7.7%         9.4%         15.0%       |0.0%         2.3%         2.2%         2.5%         | 
|TERMINAL (d)       |     1/29 (3%)    2/19 (11%)   1/21 (5%)    3/16 (19%)  |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     691          537          546          667         |---          506          563          682          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.036 *    P=0.331      P=0.263      P=0.039 *   |P=0.367      P=0.500      P=0.513      P=0.468      | 
|POLY 3             |     P=0.062      P=0.434      P=0.308      P=0.096     |P=0.350      P=0.501      P=0.505      P=0.484      | 
|POLY 1.5           |     P=0.070      P=0.463      P=0.320      P=0.111     |P=0.365      P=0.503      P=0.504      P=0.492      | 
|POLY 6             |     P=0.051      P=0.390      P=0.294      P=0.077     |P=0.331      P=0.498      P=0.505      P=0.473      | 
|LOGISTIC REGRESSION|     P=0.072      P=0.487      P=0.380      P=0.073     |P=0.536      P=0.530      P=0.556      P=0.506      | 
|COCH-ARM / FISHERS |     P=0.081      P=0.500      P=0.339      P=0.134     |P=0.388      P=0.505      P=0.505      P=0.505      | 
|ORDER RESTRICTED   |     P=0.062      (e)          (e)          (e)         |P=0.314      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Hematopoietic Cell Proliferation                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    2/50 (4%)    0/50 (0%)   |2/49 (4%)    1/50 (2%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/45.11      0/38.44      2/41.80      0/39.41     |2/45.28      1/43.89      2/45.66      0/40.65      | 
|POLY-3 PERCENT (g) |     2.2%         0.0%         4.8%         0.0%        |4.4%         2.3%         4.4%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     712          ---          593          ---         |481          726          401          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.599N     P=0.606N     P=0.421      P=0.606N    |P=0.241N     P=0.510N     P=0.680      P=0.261N     | 
|POLY 3             |     P=0.532N     P=0.532N     P=0.473      P=0.527N    |P=0.223N     P=0.511N     P=0.691N     P=0.262N     | 
|POLY 1.5           |     P=0.525N     P=0.518N     P=0.484      P=0.515N    |P=0.212N     P=0.503N     P=0.689N     P=0.250N     | 
|POLY 6             |     P=0.544N     P=0.552N     P=0.460      P=0.544N    |P=0.237N     P=0.522N     P=0.693      P=0.279N     | 
|LOGISTIC REGRESSION|     P=0.521N     P=0.568N     P=0.521      P=0.555N    |P=0.095N     P=0.467N     P=0.643N     P=0.108N     | 
|COCH-ARM / FISHERS |     P=0.518N     P=0.500N     P=0.500      P=0.500N    |P=0.196N     P=0.492N     P=0.684N     P=0.242N     | 
|ORDER RESTRICTED   |     P=0.323N     (e)          (e)          (e)         |P=0.175N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 35      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Hemorrhage                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    4/50 (8%)    1/50 (2%)   |1/49 (2%)    1/50 (2%)    2/50 (4%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     2/45.31      2/38.89      4/42.29      1/39.48     |1/44.91      1/44.30      2/45.41      1/40.72      | 
|POLY-3 PERCENT (g) |     4.4%         5.1%         9.5%         2.5%        |2.2%         2.3%         4.4%         2.5%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     670          667          558          712         |495          606          565          714          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.544N     P=0.496      P=0.253      P=0.655N    |P=0.547      P=0.758      P=0.493      P=0.727      | 
|POLY 3             |     P=0.495N     P=0.638      P=0.305      P=0.548N    |P=0.543      P=0.758      P=0.504      P=0.738      | 
|POLY 1.5           |     P=0.472N     P=0.663      P=0.318      P=0.527N    |P=0.564      P=0.760N     P=0.505      P=0.749      | 
|POLY 6             |     P=0.531N     P=0.600      P=0.290      P=0.578N    |P=0.516      P=0.753      P=0.503      P=0.724      | 
|LOGISTIC REGRESSION|     P=0.444N     P=0.699      P=0.381      P=0.551N    |P=0.524N     P=0.750N     P=0.558      P=0.690N     | 
|COCH-ARM / FISHERS |     P=0.445N     P=0.691N     P=0.339      P=0.500N    |P=0.596      P=0.747N     P=0.508      P=0.747N     | 
|ORDER RESTRICTED   |     P=0.350N     (e)          (e)          (e)         |P=0.574      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    0/50 (0%)    3/50 (6%)    0/50 (0%)   |2/49 (4%)    1/50 (2%)    0/50 (0%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     3/46.45      0/38.44      3/42.53      0/39.41     |2/44.91      1/44.10      0/44.80      3/42.63      | 
|POLY-3 PERCENT (g) |     6.5%         0.0%         7.1%         0.0%        |4.5%         2.3%         0.0%         7.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |1/36 (3%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     476          ---          509          ---         |495          670          ---          451          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.276N     P=0.163N     P=0.605      P=0.159N    |P=0.308      P=0.526N     P=0.255N     P=0.458      | 
|POLY 3             |     P=0.238N     P=0.156N     P=0.621      P=0.151N    |P=0.332      P=0.506N     P=0.238N     P=0.476      | 
|POLY 1.5           |     P=0.233N     P=0.139N     P=0.638      P=0.136N    |P=0.336      P=0.501N     P=0.236N     P=0.490      | 
|POLY 6             |     P=0.249N     P=0.185N     P=0.600      P=0.174N    |P=0.326      P=0.514N     P=0.240N     P=0.457      | 
|LOGISTIC REGRESSION|     P=0.164N     P=0.018N*    P=0.383N     P=0.019N*   |P=0.569      P=0.471N     P=0.204N     P=0.629N     | 
|COCH-ARM / FISHERS |     P=0.232N     P=0.121N     P=0.661N     P=0.121N    |P=0.342      P=0.492N     P=0.242N     P=0.510      | 
|ORDER RESTRICTED   |     P=0.078N     (e)          (e)          (e)         |P=0.168      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 36      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Stomach, Forestomach                                                                                                             | 
|     Ulcer                                                                                                                       | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    3/50 (6%)    2/49 (4%)    1/50 (2%)   |0/49 (0%)    2/50 (4%)    0/50 (0%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |     2/45.47      3/39.57      2/40.95      1/39.51     |0/44.22      2/44.26      0/44.80      2/40.84      | 
|POLY-3 PERCENT (g) |     4.4%         7.6%         4.9%         2.5%        |0.0%         4.5%         0.0%         4.9%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     670          605          633          705         |---          656          ---          694          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.344N     P=0.355      P=0.629      P=0.616N    |P=0.191      P=0.228      (e)          P=0.180      | 
|POLY 3             |     P=0.327N     P=0.437      P=0.656      P=0.549N    |P=0.227      P=0.237      (e)          P=0.220      | 
|POLY 1.5           |     P=0.307N     P=0.464      P=0.668      P=0.527N    |P=0.236      P=0.239      (e)          P=0.228      | 
|POLY 6             |     P=0.358N     P=0.398      P=0.640      P=0.580N    |P=0.215      P=0.234      (e)          P=0.209      | 
|LOGISTIC REGRESSION|     P=0.260N     P=0.642      P=0.676N     P=0.500N    |P=0.245      P=0.246      (e)          P=0.217      | 
|COCH-ARM / FISHERS |     P=0.283N     P=0.500      P=0.684      P=0.500N    |P=0.251      P=0.253      (e)          P=0.253      | 
|ORDER RESTRICTED   |     P=0.374N     (e)          (e)          (e)         |P=0.104      (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Stomach, Glandular                                                                                                               | 
|     Erosion                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    3/49 (6%)    0/50 (0%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      1/38.66      3/41.32      0/39.41     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         2.6%         7.3%         0.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          670          556          ---         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.577      P=0.392      P=0.101      (e)         |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.562      P=0.470      P=0.104      (e)         |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.592      P=0.483      P=0.108      (e)         |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.513      P=0.450      P=0.099      (e)         |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.611N     P=0.518      P=0.144      (e)         |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.626      P=0.500      P=0.117      (e)         |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.204      (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 37      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Stomach, Glandular                                                                                                               | 
|     Ulcer                                                                                                                       | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    1/49 (2%)    2/50 (4%)   |0/49 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      1/38.45      1/40.90      2/39.74     |0/44.22      0/43.87      0/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         2.6%         2.4%         5.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    0/32 (0%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          726          633          667         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.123      P=0.419      P=0.476      P=0.164     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.143      P=0.469      P=0.481      P=0.210     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.153      P=0.482      P=0.487      P=0.222     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.130      P=0.448      P=0.474      P=0.195     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.158      P=0.404      P=0.562      P=0.224     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.165      P=0.500      P=0.495      P=0.247     |(e)          (e)          (e)          (e)          | 
|ORDER RESTRICTED   |     P=0.099      (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Testes: Artery                                                                                                                   | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    1/50 (2%)    2/50 (4%)   |                                                    | 
|POLY-3 RATE (b)    |     2/45.42      2/38.87      1/41.34      2/39.56     |                                                    | 
|POLY-3 PERCENT (g) |     4.4%         5.2%         2.4%         5.1%        |                                                    | 
|TERMINAL (d)       |     1/29 (3%)    1/19 (5%)    1/21 (5%)    1/16 (6%)   |                                                    | 
|FIRST INCIDENCE    |     621          605          729 (T)      691         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.505      P=0.592      P=0.590N     P=0.531     |                                                    | 
|POLY 3             |     P=0.587N     P=0.637      P=0.533N     P=0.643     |                                                    | 
|POLY 1.5           |     P=0.575N     P=0.662      P=0.519N     P=0.666     |                                                    | 
|POLY 6             |     P=0.573      P=0.597      P=0.550N     P=0.610     |                                                    | 
|LOGISTIC REGRESSION|     P=0.586N     P=0.676N     P=0.509N     P=0.672     |                                                    | 
|COCH-ARM / FISHERS |     P=0.561N     P=0.691N     P=0.500N     P=0.691N    |                                                    | 
|ORDER RESTRICTED   |     P=0.625      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 38      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Testes: Germinal Epithelium                                                                                                      | 
|     Atrophy                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     11/50 (22%)  9/50 (18%)   15/50 (30%)  11/50 (22%) |                                                    | 
|POLY-3 RATE (b)    |     11/45.57     9/39.47      15/42.43     11/40.40    |                                                    | 
|POLY-3 PERCENT (g) |     24.1%        22.8%        35.4%        27.2%       |                                                    | 
|TERMINAL (d)       |     8/29 (28%)   5/19 (26%)   9/21 (43%)   3/16 (19%)  |                                                    | 
|FIRST INCIDENCE    |     621          605          633          636         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.101      P=0.414      P=0.075      P=0.151     |                                                    | 
|POLY 3             |     P=0.296      P=0.544N     P=0.177      P=0.468     |                                                    | 
|POLY 1.5           |     P=0.335      P=0.481N     P=0.204      P=0.524     |                                                    | 
|POLY 6             |     P=0.245      P=0.570      P=0.149      P=0.392     |                                                    | 
|LOGISTIC REGRESSION|     P=0.234      P=0.528      P=0.132      P=0.328     |                                                    | 
|COCH-ARM / FISHERS |     P=0.383      P=0.402N     P=0.247      P=0.595N    |                                                    | 
|ORDER RESTRICTED   |     P=0.319      (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Testes: Interstitial Cell                                                                                                        | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     5/50 (10%)   4/50 (8%)    2/50 (4%)    2/50 (4%)   |                                                    | 
|POLY-3 RATE (b)    |     5/45.70      4/41.08      2/41.72      2/40.30     |                                                    | 
|POLY-3 PERCENT (g) |     10.9%        9.7%         4.8%         5.0%        |                                                    | 
|TERMINAL (d)       |     2/29 (7%)    0/19 (0%)    1/21 (5%)    0/16 (0%)   |                                                    | 
|FIRST INCIDENCE    |     611          421          621          593         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.200N     P=0.613      P=0.320N     P=0.388N    |                                                    | 
|POLY 3             |     P=0.152N     P=0.567N     P=0.254N     P=0.270N    |                                                    | 
|POLY 1.5           |     P=0.142N     P=0.536N     P=0.238N     P=0.246N    |                                                    | 
|POLY 6             |     P=0.166N     P=0.616N     P=0.275N     P=0.307N    |                                                    | 
|LOGISTIC REGRESSION|     P=0.077N     P=0.168N     P=0.211N     P=0.156N    |                                                    | 
|COCH-ARM / FISHERS |     P=0.129N     P=0.500N     P=0.218N     P=0.218N    |                                                    | 
|ORDER RESTRICTED   |     P=0.229N     (e)          (e)          (e)         |                                                    | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 39      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: C-Cell                                                                                                            | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     8/50 (16%)   4/50 (8%)    6/50 (12%)   11/50 (22%) |11/49 (22%)  6/50 (12%)   4/50 (8%)    5/50 (10%)   | 
|POLY-3 RATE (b)    |     8/46.03      4/39.62      6/42.00      11/42.27    |11/44.25     6/43.87      4/44.85      5/41.07      | 
|POLY-3 PERCENT (g) |     17.4%        10.1%        14.3%        26.0%       |24.9%        13.7%        8.9%         12.2%        | 
|TERMINAL (d)       |     4/29 (14%)   1/19 (5%)    4/21 (19%)   2/16 (13%)  |10/36 (28%)  6/30 (20%)   3/32 (9%)    4/25 (16%)   | 
|FIRST INCIDENCE    |     576          590          558          465         |722          730 (T)      718          611          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.037 *    P=0.379N     P=0.588N     P=0.094     |P=0.179N     P=0.247N     P=0.073N     P=0.262N     | 
|POLY 3             |     P=0.092      P=0.257N     P=0.458N     P=0.232     |P=0.075N     P=0.143N     P=0.040N*    P=0.109N     | 
|POLY 1.5           |     P=0.097      P=0.220N     P=0.428N     P=0.264     |P=0.070N     P=0.138N     P=0.040N*    P=0.095N     | 
|POLY 6             |     P=0.084      P=0.315N     P=0.498N     P=0.191     |P=0.082N     P=0.153N     P=0.040N*    P=0.130N     | 
|LOGISTIC REGRESSION|     P=0.108      P=0.154N     P=0.412N     P=0.415     |P=0.124N     P=0.199N     P=0.053N     P=0.162N     | 
|COCH-ARM / FISHERS |     P=0.101      P=0.178N     P=0.387N     P=0.306     |P=0.063N     P=0.133N     P=0.041N*    P=0.079N     | 
|ORDER RESTRICTED   |     P=0.093      (e)          (e)          (e)         |P=0.044N*    (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Tongue: Epithelium                                                                                                               | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/1 (100%)   1/1 (100%)   1/3 (33%)    0/0 (0%)    |0/1 (0%)     3/3 (100%)   0/0 (0%)     1/1 (100%)   | 
|POLY-3 RATE (b)    |     1/1.00       1/1.00       1/2.92       0/0.00      |0/1.00       3/3.00       0/0.00       1/1.00       | 
|POLY-3 PERCENT (g) |     100.0%       100.0%       34.3%        0.0%        |0.0%         100.0%       0.0%         100.0%       | 
|TERMINAL (d)       |     1/1 (100%)   1/1 (100%)   1/2 (50%)    0/0 (0%)    |0/1 (0%)     2/2 (100%)   0/0 (0%)     1/1 (100%)   | 
|FIRST INCIDENCE    |     729 (T)      729 (T)      729 (T)      ---         |---          703          ---          730 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.556N     (e)          P=0.638N     (e)         |P=0.514      P=0.152      (e)          P=0.500      | 
|POLY 3             |     (e)          (e)          P=0.509N     (e)         |(e)          P=0.250N     (e)          P=1.000      | 
|POLY 1.5           |     (e)          (e)          P=0.504N     (e)         |(e)          P=0.250N     (e)          P=1.000      | 
|POLY 6             |     (e)          (e)          P=0.517N     (e)         |(e)          P=0.250N     (e)          P=1.000      | 
|LOGISTIC REGRESSION|     P=0.556N     (e)          P=0.638N     (e)         |(e)          (e)          (e)          P=0.250      | 
|COCH-ARM / FISHERS |     P=0.338N     (e)          P=0.500N     (e)         |P=0.371      P=0.250      (e)          P=0.500      | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 40      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Urinary Bladder: Transitional Epithelium                                                                                         | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    1/50 (2%)   |1/49 (2%)    0/50 (0%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/45.04      0/38.44      0/41.34      1/39.71     |1/44.49      0/43.87      2/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         2.5%        |2.3%         0.0%         4.5%         0.0%         | 
|TERMINAL (d)       |     0/29 (0%)    0/19 (0%)    0/21 (0%)    0/16 (0%)   |0/36 (0%)    0/30 (0%)    2/32 (6%)    0/25 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          647         |656          ---          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.180      (e)          (e)          P=0.454     |P=0.528N     P=0.505N     P=0.475      P=0.531N     | 
|POLY 3             |     P=0.180      (e)          (e)          P=0.475     |P=0.486N     P=0.503N     P=0.502      P=0.518N     | 
|POLY 1.5           |     P=0.184      (e)          (e)          P=0.486     |P=0.475N     P=0.500N     P=0.504      P=0.509N     | 
|POLY 6             |     P=0.175      (e)          (e)          P=0.459     |P=0.502N     P=0.508N     P=0.499      P=0.530N     | 
|LOGISTIC REGRESSION|     P=0.196      (e)          (e)          P=0.557     |P=0.476N     P=0.487N     P=0.506      P=0.471N     | 
|COCH-ARM / FISHERS |     P=0.188      (e)          (e)          P=0.500     |P=0.457N     P=0.495N     P=0.508      P=0.495N     | 
|ORDER RESTRICTED   |     P=0.101      (e)          (e)          (e)         |P=0.342N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Hemorrhage                                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |1/49 (2%)    1/50 (2%)    1/50 (2%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |                                                        |1/44.29      1/44.30      1/44.96      3/40.82      | 
|POLY-3 PERCENT (g) |                                                        |2.3%         2.3%         2.2%         7.4%         | 
|TERMINAL (d)       |                                                        |0/36 (0%)    0/30 (0%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |                                                        |712          606          689          696          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.112      P=0.745      P=0.751      P=0.202      | 
|POLY 3             |                                                        |P=0.148      P=0.761N     P=0.757N     P=0.276      | 
|POLY 1.5           |                                                        |P=0.155      P=0.758N     P=0.757N     P=0.291      | 
|POLY 6             |                                                        |P=0.139      P=0.757      P=0.758N     P=0.258      | 
|LOGISTIC REGRESSION|                                                        |P=0.161      P=0.750N     P=0.758N     P=0.255      | 
|COCH-ARM / FISHERS |                                                        |P=0.167      P=0.747N     P=0.747N     P=0.316      | 
|ORDER RESTRICTED   |                                                        |P=0.158      (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  01/08/03                           EXPERIMENT: 96001 TEST: 05                                            Page 41      
Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                STODDARD SOLVENT (TYPE IIC)             
                                         Terminal Sacrifice at 105 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Necrosis                                                                                                                    | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |0/49 (0%)    0/50 (0%)    0/50 (0%)    2/50 (4%)    | 
|POLY-3 RATE (b)    |                                                        |0/44.22      0/43.87      0/44.80      2/40.93      | 
|POLY-3 PERCENT (g) |                                                        |0.0%         0.0%         0.0%         4.9%         | 
|TERMINAL (d)       |                                                        |0/36 (0%)    0/30 (0%)    0/32 (0%)    1/25 (4%)    | 
|FIRST INCIDENCE    |                                                        |---          ---          ---          656          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.032 *    (e)          (e)          P=0.185      | 
|POLY 3             |                                                        |P=0.043 *    (e)          (e)          P=0.220      | 
|POLY 1.5           |                                                        |P=0.044 *    (e)          (e)          P=0.229      | 
|POLY 6             |                                                        |P=0.042 *    (e)          (e)          P=0.209      | 
|LOGISTIC REGRESSION|                                                        |P=0.044 *    (e)          (e)          P=0.230      | 
|COCH-ARM / FISHERS |                                                        |P=0.047 *    (e)          (e)          P=0.253      | 
|ORDER RESTRICTED   |                                                        |P=0.024 *    (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     CONTROL      138          550          1100        |CONTROL      550          1100         2200         | 
|                   |                  MG/M3        MG/M3        MG/M3       |             MG/M3        MG/M3        MG/M3        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Endometrium                                                                                                              | 
|     Hyperplasia Cystic                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |1/49 (2%)    5/50 (10%)   2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |                                                        |1/44.22      5/44.53      2/44.80      0/40.65      | 
|POLY-3 PERCENT (g) |                                                        |2.3%         11.2%        4.5%         0.0%         | 
|TERMINAL (d)       |                                                        |1/36 (3%)    2/30 (7%)    2/32 (6%)    0/25 (0%)    | 
|FIRST INCIDENCE    |                                                        |730 (T)      606          730 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.239N     P=0.084      P=0.459      P=0.573N     | 
|POLY 3             |                                                        |P=0.194N     P=0.102      P=0.505      P=0.517N     | 
|POLY 1.5           |                                                        |P=0.179N     P=0.104      P=0.505      P=0.508N     | 
|POLY 6             |                                                        |P=0.216N     P=0.099      P=0.503      P=0.528N     | 
|LOGISTIC REGRESSION|                                                        |P=0.179N     P=0.106      P=0.459      (e)          | 
|COCH-ARM / FISHERS |                                                        |P=0.160N     P=0.107      P=0.508      P=0.495N     | 
|ORDER RESTRICTED   |                                                        |P=0.105N     (e)          (e)          (e)          | 
|=================================================================================================================================| 
(a)  Number of tumor-bearing animals /  number of animals examined at site.                                                         
(b)  Number of tumor-bearing animals / Poly-3 number                                                                                
                                                                                                                                   
(d)  Observed incidence at terminal kill.                                                                                           
(f)  Beneath the control incidence are the P-values associated with the trend                                                       
test.  Beneath the dosed group incidence are the P-values corresponding to                                                          
pairwise comparisons between the controls and that dosed group.  The life                                                           
table analysis regards tumors in animals dying prior to  terminal kill as                                                           
 being (directly or indirectly) the cause of death.                                                                                 
Logistic regression is an alternative                                                                                               
 method for analyzing the incidence of non-fatal tumors. The Cochran-Armitage                                                       
and Fishers exact tests compare directly the overall incidence rates                                                                
For all tests a negative trend is indicated by N                                                                                    
(e)  Value of Statistic cannot be computed.                                                                                         
(g)  Poly-3 adjusted lifetime tumor incidence.                                                                                      
(I)  Interim sacrifice                                                                                                              
(T)  Terminal sacrifice                                                                                                             
#   Tumor rates based on number of animals necropsied.                                                                              
*   To the right of any statistical result, indicates significance at (P<=0.05).                                                    
**  To the right of any statistical result, indicates significance at (P<=0.01).