-18- factors were based on calculations made from comparison with primary standards obtained from the National Bureau of Standards. Table 4. Summary of the radionuclides present in island soil from Kabelle Island, July 18, 1957. Values expressed in d/m/g of dry soil as of February 1, 1958 Per cent of d/m/g Ce 144_p,144 Fe 19, 100 18, 600 41.7 40.6 16.8 112 Ru!06_Rp,106 Sbi25 4, 160 1, 710 9.09 3.74 33.9 15.9 Eulss 646 1.41 5.5 gr90.90 cal3? 614 370 1.34 0.81 3.77 11.4 Mn°4 355 0.78 13 Co?! trace -- co®? 160 Zr95-Np?5 total activity Correction Radioisotope 0.35 43 0.09 45, 758 99.91 *The correction factors (C.F.) were used to convert eim to d/m for each isotope. factors* 21.3 12

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