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Columbia Unibersity College of Physicians and Gurgeons DE LAMAR INSTITUTE OF PUBLIC HEALTH 600 WEST 168TH STREET, NEW YORK DIVISION OF INDUSTRIAL HYGIENE AUG 2 & 1944 August 23, 1944 Mr. C. Lee, United States Radium Corp. 535 Pearl Street, New York City, N.Y. Dear Mr. Lee: It is my understanding that Dr. Hess is going to take over the radium determinations on your employees. Can you give me some idea as to when this will take place as I do not want to buy any new equipment as it is very expensive. I shall be very happy when Dr. Hess will take over this type of work. Do you want us to continue to make the physical examination of your employees. I would like to know so that I can make my plans accordingly. If you so desire and if Dr. Hess is willing I could take the air samples for Dr. Hess here and they would be away from your place and there is no chance . of other contaminations. I would be willing to follow Dr. Hess's suggestions in taking these samples. I will be out of town all of next week but I trust that I will hear from you in the near future, I am, Cordially yours, Pudenich B.Thum Frederick B. Flinn Director of Industrial Hygiene. FBF:GD