Figures Page Map of Rongelap and Ailinginae Atolls Rate of decline of radioactivity in food {tems il Decline of average amounts of radioactivity in fish_ tissues compared with decay of three specimens collected on March 26, 1954 Decline of average amounts of radioactivity in fish tissues of carnivores and omnivores 23 Decline in radioactivity of tissues of hermit crab 23 Decline in radioactivity of tissues of giant clam 24 Decline in radioactivity of tissues of spider snails 24 Decline in radioactivity of tissues of sea cucumber 25 Decline in radioactivity of coral 25 Rate of decline of radioactivity in algae and soils 32a = Decline in the radioactivity of bird liver, muscle, and “! bone tissues, expressed as a ratio of the activity of . the March 26, 1954 collection ee Radioactivity in eight increments of a sand profile taken “in Rongelap lagoon under six feet of water * 17 Decline in radioactivity of tissues of coconut crab ‘Rate of decline of radioactivity in coconut meat and milk 148, 17 32a 41 53 Specific radioactivity in five different particle size fractions for each of the soil profile increments shown in Figure 14 A 53 wo