SOUTH NASSAU COMMUNITIES HOSPITAL 2445 OCEANSIDE ROAD OCEANSIDE, NEW YORK 402807 Oct. 4,1962 Mr. Will Siri Donner. Laboratories University of California Berkely, 4, Califomia, Dear Will: In reviewing the blood volume data on the Marshallese and Caucasians which we performed in 1961 and 1962, I find that there may be many srrors since we based our normal values on ideal weight. As you have pointed out in the past these results are probably not valid as some subjects are either under- ; C or overweight. We should therefore like to include total body water along with blood volume determinationswhich we plan to repeat in the 1963 survey. Could you supply us with tritiated water so that we can accomplish this test? As T recall, you madé this offer back in 1961 when I visited the Donner Laboratories, IT know you are a very busy man particularly in view of your impending trip to Mt. Everest but maybe you oan take a moment (from one of your coffee breaks) to answer, . Please give my best regards to Jean and say "hello' to the Weavers and Dim Born, F don't think TF have any other friends (?) left at Donner, If IF should go through San Francisco on Feb, 14th F shall certainly call you sven if you dontt supply the labelled water. Sincerely yours, leo M. Meyer,M.D. IMMtat Siena Tm aron NO, Folder No, Notes j Sellaen Found 8phe 1 Dates | LA @laL fet oy 0

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