various areas of military interest, The nature and results of this study are briefed in the following paragraphs. In Project 3.1 a rigid 6 by 12 by 6 ft cubicle at 9500 ft from the EEG22220500 was instrumented to record pressure v8 time o icle faces, Records were obtained, but the pressure Seattle ae 2 Ublip senhated adh hd wareeall ce bplabnagtb lak tysgg tees mae yay field was on the order of 3.5 pai instead of the order of 15 psi which had been expected on the basis of predicted yield. The data are yet to be analyzed and interpreted. In Project 4.2 the apparent craters formed by ‘ne elation tg rite detonations were measured by fathometer soundings as originally planned. The results are briefed as follows: . Crater formed by Diameter, ft 6500 Depth of Apparent Crater, ft 120 700 1500-2500 2k r 20* ~ “Below original bottom which was 160 ft below water surface. In Project 3.3 a study was made of tree d firikku, Rukoji and Chieerete islands from ‘A 22%. Graded damage was observed, but data obtained are yet to and interpreted, be analyzed Project 3.4 determined the effects 0:NEE: navel mines of various types planted at distances of 2,000 to 15,000 ft from the detonation site. Graded damage was obtained from O per wal & cent at 15,000 ft to 100 per cent at 2,000 ft. Project 3.5 was activated immediately after tne SD. to document the unexpected damage to the camp on Eninman and certain instrumentation shelters near ground zero. This was done primarily by photography. webeWbjak This study represented the first observations by Americans on human beings exposed to excessive doses of radiation from fall-out. The groups of exposed individuals are sufficiently large to allow good statistics, Although no pre-exposure clinical studies or blood Covlegsn og Q, 4-Div, 38 rere et Hoye Me! 2.35.4 Program 4, Biomedical |\