s. Co far it has not teen poecitie te perform the cop-criments in cuen @ manner es 10 climinate 7.0 es the limitin, factor of survival, . This ac- ~ t re mate the rele of 15 beta radiation in lun micers. Th@ expycure case hes Leer redesipned to permit the use of more uw weler atscrbantc eng to persit bevier ecntrci. of experimenial ecaditiscr ae letheil: a.sc teer rac on mice using krown amounts - gata will be used “sc : L 2) WE°Gr is (aren in art. aa re a a The Lia Sor £0 wnt wirieh celivers é fo meet te leae ae ed - Maer,in to - 7 tere’, ce eee hast cht ceeSb See Blci hee. SakeT TY 2) ° Tv, 77 Soeas © bie teed, ~ Tile? 3 ihe Eros Bosra: a Test + Cvsien feritudving Eisdoricsl wf} & preliminary experiment was dene expcesing the been rocits to tritiun. The resuite of this study epreer to indi cate thet the Loe fer & * the tear root with the teta rays cP iriltiun is efcut the ceme asyit is for “X-piciation. Classification charged to loved A270 oe fe vin. "ESfect cf AIRere EN iLPaBe BeeR Rey bas teen conwf AG Or” Per Faevec. (Perr: 1 Qusteapd_in, orangean an tlasgisfcat.on) (Late) y . L 4 ay COPIES ‘us frag vecbe dee 7 abs 8 41 Od Mot Like: 'Toyartbica of et me ee t ene LO NEG ne ae 3 perso. gakirg ths chan wD za, se end dat *) La oo