Letters Received to Howard H. Barker, July 23, 1929

COMMISSIONER OF HEALTH DIVISION OF OCCUPATIONAL DISEASES STANLEY H. OSBORN, M. D., C.P.H. ALBERT s. GRAY, M.D., CHIEF OF STATE OF CONNECTICUT DEPARTTMENT OF HEALTH HARTFORD \JUL 241929 July 23, 1929 Mr. Howard H. Barker U. S. Radium Corporation 30 Church St. New York City Dear Mr. Barker: At the suggestion of Mr. Knowles, we are requesting that you send us copies of your two papers entitled "Radioactive De- terminations on Post-Mortem Specimens, 11 and "The Detection and Estimation of Radium and Mesothorium in Living Specimens". As you know, much of the application of radioactive materials to watch and clock dials is carried on in this state. Conse- quently, we are much interested in keeping up to the minute on the most recent advances in connection with the prevention of pathological changes which may in the workers handling this material. Consequently, we shall greatly appreciate not only the papers referred to, but reprints of further papers which you may publish. Thanking you for this fav or, Very truly yours, Albert S. Gay M D. Chief, Division of Occupational Diseases. C:J Fomm O-1 4M-1-28