«peteDaa eA ent ee ta . A aaado UWFL-63 FURTHER CONTRIBUTIONS ON GROSS BETA RADIOACTIVITY OF BIOLOGICAL AND RELATED SAMPLES AT THE ENIWETOK PROVING GROUND, 1952-1958. Section I. PHYSICAL DECAY OF SAMPLES FROM ENIWETOK ATOLL IN 1982. Section II. FURTHER CONTRIBUTIONS ON GROSS BETA RADIOACTIVITY OF PLANKTON AND BOTTOM SAMPLES AT RONGELAP ATOLL, 1954-1958. FURTHER CONTRIBUTIONS ON GROSS BETA RADIOACTIVITY OF FISHES AT RONGELAP ATOLL, 1954 THROUGH MARCH 1958. Se tpt Section II. by Kelshaw Bonham December 4, 1959 Lauren R. Donaldson Director eM VV Operated by the University of Washington under Contract No. AT(45-1)540 with the United States Atomic Energy Commission Laboratory of Radiation Biology University of Washington Seattle, Washington #nasion