Specimens. (os) be mh a Thc following speeizcie will be required: fen mature male contrcl rats from ceehk of three differ- emt uneontaminated atolls in the Marshall or Caroline Yelanés. (:) Ten mature anle rats from Janet Island before etme device (8 detonated in the Mike-Mectar crater. (¢) Ten matere apie rete from. Janet Island two weeks after the éetonaties@® the above mentioned device. male rate: (4) fen amature Janet Island two months after detenetion. In eleven: other devices are @etonated neer Janet Island, afiffiges in tne senedule of the program would be made te alles ber the conditions imposed. “Wmp testis should be removed from each snimel] at the time of capture amd fised for the stuly. oo th heAa. att. Bonin0, ia. RP aatte Rite Mt ne -16- TPiseucee from the rats at Janet Island sheuld be retained for the determination of redicastive content. Depurteent of anatouy, University of Washington, a8 a Joint tculy. Radicactivityasasyremerts. (1) A weexiy record of 2covwmmalated 8 and Y radiation dose (pre-smot) should de AB rrserscamen 6 in sooperation with Br. acres Iso ™-' age, Kot fhe quart itative work on spermatogemesis will de done aade wy meamne -f “ile badges placed in holdsre one inen (8) Initial radiation levels and tota’ eceuml ted dose 4a. (ng the firet wee< Tollows g detonation erould Se recor led it Gh ot yee 16 44). Le tte 35 72 lewelS Of Seta, rat nae A eh hem ott comma and Tree 45h ARsnore ment bunders. an@ in the inatru-e SeNictae abe ame apdove the zround ievel, in the furrows,