| = Soil samples for the October 21-23, 1955 collections were taken from 7 “ge islands proper. Sand specimens werecollected at the low tide line and | from the lagoon bottom. One sample was taken from the bottom ofthe well _at Rongelap village. The sampling method for soils differed from that of the previous Ronge_ lap collections. _- “poll were taken. In the earlier collections single samples of the top inch of In the October collections two samples were taken at each . “soll station, one to a depth of 3 inches and another directly below to a depth ot 6 inches. Since, on the average, 65 percent of the activity of the top 3 7 “inches of soil is located in the top inch*, direct comparisons between sam. ‘ples from the previous collections and the October collections may be made cs if the latter values for the top 3 inches are multiplied by two. / Profile samples from the lagoon bottom were taken by a diver driving a . 12-inch long, 1 1/2-inch diameter aluminum tube into the sand and corking ne | ‘the top and bottom of the tube. The core was removed from thetube at the : ‘Eniwetok laboratory and divided into 1-inch increments:~ - ~ Levels of radioactivity in the sand and soil of Rongelap and Ailinginae Atolls on October 21-24, 1955 are shown in Appendix G. Activity levels in ‘thetop 3 inches of soil at Kabelle and Labaredj varied from 4.4 to 11.5 “pelkg. The highest value for any soil sample collected during the above‘mentioned time was found in a sample from Rongelap Island which contained aie This sample is not representative of the 20.8 uc/kg of top 3 inches of soil. .* Unpublished observation, UNIVERSITY cab ds UNIV. OF Wael LiciiARIES ~ uo UNTNTR oo Un.»