TABLE 2 RADIOACTIVITY ASSAY OF PLANKTON SAMPLES FROM THE PPG AREA Wet tation Weight (grams) Gamza nays Luitted per min/gram 9 6 0 7 9 99 9 8.7 50 11 10.2 16 12 E.0 £3 5 LG 12 Cae 15 10.2 0 16 Gt 2565 19 & 36.3 al 9.1 22.2 2 7.8 QO 17.8 G 25 13 27.3 26 Li. 20:9 28 3.2 11.1 29 33 15.0 30 id 1.9 19 /7