- 34 4, Scaevola leaves from Belle Island (Eniwetok Atoll) contained a high amount of w185 (67 to 70 per cent of total activity). In ifon-exchange separations this isotope was observed only in the anion fractions. Only the 0.055 MEV precipitation separation specific for tungsten. 5. In soil samples from Belle Island collected August 20, 1958, wi85 appeared to leach to a depth of eight to ten inches, two and one-half times as fast as radioruthenium, times the rate of radiozirconium, four and five times as fast as radiocerium. 6. The rate of removal of wi85 from Scaevola leaves by rain and wind 1s not significantly different from the average of the other radioisotopes. 7. The level of wi85 on algae samples collected at Belle Island on August 20, 1958, was higher than that on land plants, based on activity per unit weight. 8. In a dogtooth tuna specimen taken from Eniwetok lagoon on June 22, 1958, wi85 was found in the spleen and liver. Other fish sampled failed to show the presence of this isotope.