Tecthel dose studies have bern done on the same strein of vnigt at N.R. DO. TG. with lOGuU kev. x-rey> und2=r conditions desizned to Simulate those at the test site. A walk-in refrigerstor has been revamned to arnroxim.te the temperature, infra-red light conditions, mean humidity end minimum eir flow at strtions. Animes ere given 4 5 hour rides before and after irradietion in closed trucks to meke exnosure conditions ss near as nossible to those in the field. Jog exveriments of a comm rble nature will. be completed soon. io nortr lity studies will be done et test site. Hictoltozicr 1 otudies: Thirty-two dogs will be exnosed to 2 36 dry B.D. 10S (ascrovinetely 550 gamma roentgens). They will be sacrificed on a rendom basis two uta tine. The times of Sacrifice heve not becn decid d definitely oni will denend unon the outcome of curvent studies at the N.R.7. Ut is nrobable thet three gsrouvs will be sacrificed during the first 24 houre end then one cair er dey thereafter. Commander Tullis will be vroject officer in chr rge of these studies on pigs, while Dr. Arthur J. @eaton (Navy) will conduct the Studies on the dogs. (Col. De Coursey will not nerticinete in this wor.) As fercs 1 con tell from t-lking to the nathologist¢ at Rocnester this date alone should z1ive informstion wrereby the ecuivelent doze of 19090 %.v. x-rays 50 roentgens. can be determined to within “hese cnimels wil™ slso be used DOS ARCHIVES