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 1952. Section IT. FURTHER CONTRIBUTIONS ON GROSS BETA RADIOACTIVITY OF PLANKTON AND BOTTOM SAMPLES AT RONGELAP ATOLL, 1954-1958. Section III. FURTHER CONTRIBUTIONS ON GROSS BETA RADIOACTIVITY OF FISHES AT RONGELAP ATOLL, 1954 THROUGH MARCH 1958. by Kelshaw Bonham December 4, 1959 Lauren R. Donaldson Director 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