Letters Received to H.H. Barker, April 3, 1933

TREASURY DEPARTMENT BUREAU OF THE PUBLIC HEALTH SERVICE OFFICE OF INDUSTRIAL HYGIENE JEI:LA WASHINGTON, D. C. AND SANITATION Room 1-129, "C" Bldg. 16 Seventh St., S. W. April 3, 1933 Mr. H. H. Barker, Vice President, United States Radium Corporation, 535 Pearl St., New York City. Dear Mr. Barker: The gamma-ray electroscope arrived safely and I want to thank you for kindly lending it to us. Dr. Sayers thinks it would be a good thing for us to show this instrument in our exhibit at the coming Century of Progress Fair at Chicago, but he suggests that we ought to polish up the brass parts and give it a coat of black paint. I told him that you would not wish to have the instrument opened so that its adjustment would be changed in any way; but he thinks that we could polish up the brass and apply the coat of paint without opening it up or changing its adjustment. Would you be willing for us to do this? With kind regards, I am Yours very truly, games E Ives (James E. Ives) Senior Physicist APR 4 1933