EAT See Activity in Counts per Minute cee ee ee eeat EDS Seta Algal Detritus (t-*5) r——Fish Larva (t-!9} a Sogitta (4-74) Stylochsiron(t!.?4 Days After Detonation Figure 2 Beta decay curves. interest in the certein activity totals. This tabulation also is the result of the initial g plankton. containin water sea in ed distribut matte: of how the varioug nuclides are was not here analyzed haul the of portion the of volumes The total weights and 200 mi water vith about holding bottles specimen in contained were they but reported to2 ml. Thereplankton that, it ig believed, would have a “drained volume” of about 1 of 1,900 times higher in fore in Table 2 the total activity per ml volume is of the order 12 > re DSS ee ee aot oeASEE See a 0 SURES Le : RT STE RR8 RRR LISSA STL ee ARCLT Bem ee tee Ne sean Rae Eee ao ae Ta. SRae ORE