BROOKHAVEN NATIONAL LABORATORY ASSOCIATED UNIVERSITIES, INc. UPTON, LI. N.Y, TEL. YAPHAMK REFER, 4-6262 July 18, 1961 401064 Dr. Leo Meyer Donner Laboratory University of California Berkeley (4) California Dear Leo: I got your letter and am glad you're having an interesting time in California, Will Siri's suggestion about doing hydration studies in the Marshallese, using tritiumelabeled water, sounds like a good one. I suppose we could try it on the unexposed people. Will talk it over furtter with you when I see you. I am enclosing copies of the 3, 4, and 5 and 6-year Marshallese reports, as you requested, My best regards to you and Lillian and also the others at Donner Laboratory. Sincerely yours, Bp RAC sag Enc, 9008251 / Robert A. Conard, M.D. Medical Research Center oo