VACYACT MATERIAL REMOV £3 ea = $8 Be “Gome observations by -sunder gimilar senditiens, but at “2st the time of IVY King test are < i Ee :i ae eas see si - hi ae ee fiue (ti ieHu tt fi fe ie elect cte lite ibuenpii ahBee hd — The hypothesis put ferwerd by Professer C. BE. Palmer in his be -sgecond letter ef 2 February 1953 for the secondary formation ef the main -sZarge cloud appears to the suthor to be plausible but it also appears equally «. ~#gertain that the bulk of this main cloud ended up in the stratosphere betusen - . “»>@@ and 120 thousand feet. The maintenance of its shape and fexm sare believed ; if “to be due to its internal turbulence and weqqual heat distribution. ——getinate of the degree of mixing of the sesondarily farmed large with a peimary column ef miclear debris, if indeed this did —eccur during rise, as purely hazardous quesework. As far as 1 vebservations were made for guidance en this aspect of the be. ~epparent that sampling was conducted some thousands of ef the main cleud, as statements by some of the pilets ef the -aiycraft, appears te confirm. & discussing a well-de relation between ear and the energy of @ nuclear explosion. Yead&gaw Leas, ° wow & 2 Me There is sttadhed hereto as an Te ‘wamorandun from Mr, SEED to Dr. @ 3 incls Table 1 19930 Pigure I Memo dtd 11 Dec 52 fm ir. ed of os » Swedeex Techni. Gil to Dr. Ua 2 PRIVACY ACT MATERIAL REMOVED » af al

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