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MASSACHUSETTS INSTITUTE OF TECHNOLOGY DEPARTMENT OF PHYSICS PARV 15 1941 CAMBRIDGE, MASS. Room 6306 - - C May 14, 1941 Mr. C. w. Walhausen U S. Radium Corporation 535 Pearl sheet new york City Dear Sir: In connection with some research we need a small amount of rather work supervised by Prof. R. D. Evane fune radium or polonium. Can you supply 3/10 milligram of radium with a total solid content of less than / milligram, or possibly some polonium and at what price ? Very truly yours, C. D. Jacob