o o a a ao X { ad SEARED teste ERR ! ] 016 063 IS ol9 05 o2l 010 Oe *% x 89 Ge 2° ae 20 * x20 # 290 YAO 0 9.2 weae * @° +s 3% ° IT 10 f° } Water taken from Probe Tank while underway. . . Other values taken by water bottle while on station. Values in disintegrations per minute per liter of water filtered. : L I64 Ca Fig. 6. + & ge l 65° Radioactivity of filters in the vicinity of Bikini Atoll. O13 j l6e°