BOMBS AT BIKINI 



almost instantly, and the counter is ready to detect the 

 next photon. Detecting and even counting these dis- 

 charges is simple enough. Many different varieties of 

 Geiger counters were prepared. Some were easily car- 

 ried in the hand, for making quick spot checks. Others 

 were equipped to operate for long periods of time with- 

 out attention, recording their experiences on gi'aph 

 paper or even radioing their findhigs to men and re- 

 cording instruments located a few miles away. A few 

 were equipped to operate underwater. Some were 

 mounted in drone boats, a few carried in planes. 



Preparations were made for measuring alpha, beta, 

 and neutron radiations also. Various standard types of 

 instruments were used; far fewer were required than 

 for gamma radiation. 



TEST ANIMALS 



Noah would have felt at home on the BURLESON. 

 But he would have been surprised at the selection of 

 animals which Captain R. H. Draeger (Navy Medical 

 Corps) brought. There were 200 pigs, 60 guinea pigs, 

 204 goats, 5000 rats, and 200 mice. 



There was nothing haphazard in this choice. The 

 animals selected must be capable of keeping in good 

 health despite weeks spent on shipboard. Tropical 

 weather must not wilt them. They must be amenable to 

 remaining for days in confined quarters and com- 

 pletely unattended. More important they must be of 



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