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March 12th,1929. Dr. Herman Schlundt, University of Missouri, Columbia, Mo. Dear Dr. Schlundt: I an today in receipt of a communication from Dr. Ewing, which reads as follows: *Dr. Craver and I fully approve of the examination of the fecal residues for radiun content, and suggest that you request Dr. Schlundt to proceed as rapidly as possible. Very truly yours, Vice President. HHBarker:RE