Letters Received to C.B. Lee, November 4, 1938

U. S. DEPARTMENT OF LABOR DIVISION OF LABOR STANDARDS WASHINGTON November 4, 1938 Mr. C. B. Lee, President U. S. Radium Corporation 535 Pearl Street New York, N. Y. . Dear Mr. Lee: I received your interesting communication of November 2 addressed to Dr. Curtiss. Frankly, we were as much astounded at the sensitivity of this instrument as you were, even though we did know of its ex- ceptional characteristios We are glad that you were able to discover the location of the waste material and hope it will prove of some value to you. I say this in rather a humorous vein that, after our experience in different plants in your city, it might behoove the managements to have one of these in- struments on hand to locate material they do not know they have. As regards vacuum cleaners, I presume you received that idea from Dr. Hatch, I would like to call your attention to the fact that vacuum cleaners work because the screening mechanism, mey, the bag, permits an egress of air and cannot hope to collect all dust particles. There- fore, there is a tendency to disperse dust in the room. However, this problem can be readily met by small amount of thought. The bag may be located out of doors with the windows adjacent thereto closed which should permit the evacuation of spaces and areas considered necessary plast without recontamination of the atmosphere. I am taking this opportunity to remind you that I shall be in your city next week perhaps on the 8th, and at that time would like to make certain measurements of the light conditions in your plant. This will take very little time and it will inconvenience you very little as it will require no moving of materials or equipment. Trusting that this arrangement will be satisfactory to you and thanking you for your many courtesies extended to Dr. Curtiss and myself, I remain Very truly yours, NOV A 1038 Golligen J.S. ROGERS Industrial Hygienist (Engineer) JSR:hm