Ww Uy During November 1955, HASL received 12 soil, 12 seawater, 8 vegetation, 1 plankton, 2 algae, 6 fish, and 15 coconut samples collected by A. Seymour of the Applied Fisheries Laboratory, Uni- versity of Washington. This particular set of samples was collec- ted during October 21-23, 1955 on Rongelap, Kabelle, and Labaredj Islands of Rongelap Atoll and Mogiri Island of Alinginae Atoll. Each sample was analyzed at HASL for total activity and Sr-90. Selected samples were analyzed for normal calcium by the oxalate~permanganate titration method, for reporting values in Sunshine Units. Values are reported as of February 27, 1956 and are pre- sented in three sections: 1. <A summary of HASL results including a comparison with data obtained from University of Washington Report No. UWFL-)3. 2. A complete tabulation of HASL data with pertinent information given for each sample. 3. Notes covering sources of information, analytical procedures, and standardization and counting techniques used at HASL in processing these samples.

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