Son A& about the same time that epilation apreared in the grcup, mall skin lesions became noticeable on the folds of thecettethe 7 forehead, shoulders, and arms. They appeared to be superficial and et first were hyperpigmented. As time went on, the lesions, which becane blister like, began to peel leaving a whitish depigmented area in the center. The skin sanifestations continued to appear throughout the nosth of March, all going throtgh the same cycle and involving most of the na- tives. The acst severe cases occurred on the feet with one exception - one aan developed a deep ulcer behind one ear. By this time all of the akin lesions except the ear have virtually healed and it appears that re= pigmentation is taking place. Sigiler findings tut in a lower percentage and at a later date oceurred in the Ailinginse group. One American developed what appeared to be superficial radiation leaions on the back. They were hyperpigmeo~ ted and behaved as the others. Throughout, there have been no demonstrative systemic symptcas other than an epidemic of calds in the Rongelap group. A few cases of secondary infection from sicin lesions and some unexplained high fever in children responded well to penicillin with no sensitization reaction. The white blood counts reached a minimm during the latter part of March with a late depression in blood platelets becoming apparent. The level of the mean counts being well below normal mean counts. Lowest counts were about 30,000 compared to a normal mean of over 300,000 for the natives. ‘There is a definite upswing in the entire blood picture of both the natives and Americans at the present tine. Qa aboat 20 March, several cases of radiation buras were reported aboard beth the USS BATBOKO and the USS PHILIP. Examination showed that in aleost all cases there were discrete areas around the belt line which corresponded well to some lesions seen on the natives. History indi cated that these lesions developed soretime between 3 March and 15 March. dJ11 were in the process of healing with desquazation ani mild depignentation and were quite superficial. The whole body dose was less than 108 and there were no other synptons. Three Mbeat operators froa TG 7.3 presented film badges reading — l from 85 to 95R and were sent to Kwajalein to be observed by the medica skin no s, symptom no had have team on 16’March. Since that time they badging or findings agr blood changes. It is likely some discrepancy in of the ation wearing of badges mst have taken place as careful exacin ion to whieh radiat the in l musua badges by densitometer revealed nothing they were sudjected. all cases in @ ccoserven It was decided at the outset to manage arose, avoiding experinentati ee tive manner, treating symptoms as they to perform transfusions e-tier with treatrent but being ready at any tine Sick call was managed daily of whole blood or platelets if indicated. eee h