spring 1953, (The skin damage observed on shee; in the spring 1953 vas not established te be beta burns.) Rowever, the axact positions of the enixals in relation to know sucunta of fallout are not clear. Pollowing the last detonation of the syring 1952 series af the Nevada Proving Grounds, about one half of a herd of 150 head of cattle were found to have evidense of beta burns, They were thought to have been 15-20 miles fron ground sero in Kawieh Valley to the northeast and to have been exposed to fallout from the last detonation, dose rate readings (14 ET on a 300 foot tower) Righest taken along « dirt road ruming this valley, integrated lengthvise through to 75-100 infinity gamma doses. During Upshot-fnothole, 16 horses showed skin lesions over the back ant eye danage was noted in a fev. The dest evidence indicated that the horses vere some G10 niles to the east ef ground zero on 17 Mareb 1954, where the falloct occurred from the first detonation (16 KT en a 30 foot tower). Radiation levels in this area are not know with certainty but the fallout eecurred in ea narrow band and was carried by relatively bigh velocity winds se that it probably one hour. fell on the horses at a tine less than If go, probably more than one-half of the infinity dese vas delivered during the next day. Quereiional Feasibility Under the eriteria recomended in folicy I], there would have been two occasions in the past where personnel would have been requested to pr or Ram ee Gaveneaie ink wee 3°