EARLY PICTURES OF THE FLASH, TEST ABLE. 



This and succeeding photographs of the Test Able 

 atomic bomb explosion are included here for their 

 representative nature and dramatic quality. They 

 are not necessarily arranged in chronological or- 

 der, and they do not purport to tell a complete 



technical story. In nearlv every instance their in- 

 terpretation is a hiahlv comolex matter, involving 

 a knowledge of position and altitude of the cam- 

 era, focal length, type of film, type of filter; and, 

 most important, the precise time at which the 

 exposure was made. 



