7 1000- SEA T CUCUMBER 1 CORAL ¢ Tele) 4 Oo t Se“ 100 - w 1Or 5 = 4 o ™M ~~ oO =a lo t > 25 1 100 0.155 600 DAYS AFTER MARCH Figures 9 (left) and 10 (right). I 100 600 1, 1954 Decline in radioactivity UNIVERSITS UNIV, Gk ow H of tissues of sea cucumber and of coral from northern islands of Rongelap Atoll.