hae a ea eal tbe WET WEIGHT -10- 0.1 beer UC T 0.01 P an — NS JANI, .OO0! 1 loo Fig. 2. JAN.I, 1955 to 200 300 DAYS 1956 1956 pot JAN. 1, ho 400 500 600 700 800 AFTER MARC-H l 1957 {oy 9300 1000 100 [200 1300 I, 195 4 Rate of decline (solid Hne) of radioactivity in reef fish collected at Rongelap Island, Rongelap Atoll between January 25, 1955 and July 17, 1957. Broken lines in- dicate decay in tissues of fish collected August 3, 1956. . ast} ats AX pi