UNIVERSITY OF CALIFORNIA CROCKER LABORATORY BERKELEY 4, CALIFORNIA Saielas “@rren, }, Dd. Refer Your - £5o:LeD Director, Division of Biclopy and isdisiua UV. Atomie Tauerzy Tommiscion o5, Tn answer to your lstter of August °, 1949, Professor Latimer and lara more then willing to os of servics in tvaluating tha proolens prasantsa toe us oy “r. Deal. Iu order to assist us in appraising some of ths factors involved, we voth feel that it would ve very useful if thers could oo made avsilavle to us ins cortinent information soncerne ing the fallecut sir radicactivity followin1g the Trinity, Jansnoss, ~ Bikini. and Glniwetck istonations. ony acd itional data on the vsricé of per sistance of radisactive narticles in the atmosphersa followiag eee thesa sanisodss vill a ASSIFIED THRO f a ales Taz ranors jerb with us by Mr. Deal presents a numoer or hiznly provocative coints, wit hs FF iosa fzfaiag led oF Fni2See [zo | ke} ESs SS | - go ines| rep Qe os <[5 220 5zE5 ee ee Mpav Srv h q|SaiZ2ZES52 jAj|SEa at ora ajesssesss KOOOUUGUOS My) ¢ of which ve found ourselves in @ grsansn4. r Smith. and soncerning others, we Salt a Little iifferently than did ir. : : . Hovaver, fo is certainly to be congratulated on having nan Glad a diffi- cult problem vary «vall. a , - : 4 1s . . and Tf ucens sto have our jolut rerort in vcur hands oy, the middle of -ext mouth. 1 . ° Saher Eno a 5) = win fide n us & Dw =e Els ht Ze (2 al 2 af: ~ a . LA BEST COPY AVAILABL 6 a eft 5 . ith very best regards. SS a tay J oP Ca : % -: ila"; 1 &) : ed : mou f-4 a Dap o/y f nS i ji: wORDY fe c JGiit mmm “+ vory 1 of o/*$ = Suislds Jarren , on" ng ia i _ i er Go He} x pp ~ jo a wl <x ’ ys : 4 Joseoh 3. Hamilton, fh. D. ca Nah wv Soa .. Gqats# z a 224 wt = ly Lye JLLSErs E a2 5) 3}> > | 22 | { : fou io deubd% will agrs8 with us chet the biological aspects of tne : : 3 \ : Situation are leaded vith a grasat cany iutangisles sun Professor +tinar ‘. . \