1 # vi q 10 HERMIT CRAB atestaN ‘si el shea t Tie, 3 eesStan tayaeeen a 1 Alli NePe : - 23 - r 1000) 4 ¢ 100 ~ ‘¢ 100 = SZ 1O¢ e Cc . n , = OF 4 ©o x NN oO 2 > tr > - [F > > 0.155 \ 100 600 25 DAYS AFTER MARCH 1, 1954 Pigures 5 (left) and 6 (right). TOG 680 Decline in radioactivity of tissues of coconut crab and hermit crab from the northern islands of Rongelap Atoll. . Uc UNIVERSITY TES TINT. OF Ne - . 3°