page 108 



ANIMALS IN THE SERVICE OF MANKIND. This 

 deck view of a typical target ship shows how the 

 test animals were placed for exposure to the 

 atomic bomb explosions. For Test Able 176 goats, 

 146 pigs, 109 mice, 57 guinea pigs, and 3,030 

 white rats were used. They were placed on 22 

 target ships, in positions normally occupied by 

 ship personnel. In addition to effects on fully 

 exposed animals, effects on animals partially 

 shielded from the radiations were studied. It was 

 desired to learn, for example, how deadly the in- 

 stantaneously produced gamma radiation would 

 be to personnel below decks and in gun turrets. 

 White rats were placed in various sites from the 



engine room to halyards to check all locations. 

 The National Cancer institute supplied white 

 mice with predilections for or against cancer. They 

 were exposed in order to determine whether the 

 intense radiations would produce genetic changes. 

 The mice were returned to the Institute immedi- 

 ately after Test Able to be bred and studied. In 

 Test Baker only 200 white rats and 20 pigs were 

 used, on four target vessels. Since this was to be 

 an underwater shock, it was expected that me- 

 chanical injuries would be far more prevalent than 

 injuries from the instantaneously produced gamma 

 radiation. Animals used in Test Able were not 

 used- in the second test, 



