OACTIVETYIN TIE i OTA myers Oy PHE CENTRAL me ee “1384 € 3966 % : kaiprc PF. Palwmijy % Laleeatory of Radiation Biology Waiversity of Washingtor Seuttl:, washingten layzen R. Donaldson Oseeetax Pabruary 15, 19623 Opurated by the University of Washington uncur Contcact "o. ALP(4$-1)1345 with the United stares Atomic mmucgy Camm, as .on PAC IP se Re te