spring 1953, (The skin damage observed on sheep in the spring 1953 was not established to be beta burns.) However, the exact positions of the anizals in relation to know anounts ef fallout are act slear. ; Following the last detonation of the spring 1952 series at the Nevada Proving Grounds, ebout one half of a herd of 150 head of cattle were Sound to have evidence of beta buns. They were thought to have been 15-20 ailes from ground sero in Kewich Valley to the northeast and to have been exposed to fallout from the last detonation, (14 KT on a 300 foot tower) Highest Gose rate readings taken along a dirt road ruming lengthvise through this valley, integrated to 75-100 infinity gamza doses, During Upshot-nothole, 16 horses showed skin lesions over the back and eye daxage was noted in a few, The best evidence indicated that the horses vere some 10 miles to the east of ground sero on 17 March 1954, where the fallout occurred from the first detonation (16 KT on a 300 foot tower), Radiation levels in this area are not know with certainty but the fallout eceurred in a narrow band and was carried by reletively high velocity winds eo that it probably fell on the horses at a tire less than ene how. If so, probably amore than one-half of the infinity doze was delivered during the next day. Qperstionsl Feasibility Under the eriterla recomended in Policy II, there would heve been two oecasions in the past where personnel vould have been requested to hae “2 Pind oN —