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Cohumbia University EPIDEMIOLOGY College DE and Sirgeons INDUSTRIAL HYGIENE 632 WEST 168TH STREET, NEW YORK DEC 131929 PUBLIC HEALTH ADMINISTRATION SANITARY SCIENCE INSTITUTE OF PUBLIC HEALTH Dec 11 1929 United States Radium Corporation, 535 Pearl Street, New York City, N.Y. Gentlemen: I am enclosing a carbon copy of a letter which I received with the original from Dr. Schlundt. I am also enclosing my reply to him. I am sorry that I haven't but one copy of the letter which I wrote to him yesterday dis- cussing the proposed paper and the objections I had to it but he will probably give you the facts when he writes to you. Yo urs truly Probect B.Than Frederick B. Flinn