Letters Sent to R.H. Whitehead, July 12, 1926

July 12th, 1926. Mr. n. H. Whitehead, New Haven Clock Co., New Haven, Conn. Dear lir. Enclosed herewith you will find an article entitled "Radio Active Material an Industrial Hasard?". by Dr. Frederick B. Flinn, Ph. D., Assistant Professor of Physiology in Industrial Hygione, College of Physicians and Surgeons, Columbia University, which treats of the so called "radium necrosis" or radium poisoning cases. The investigation by Dr. Flinn, which formod the basis of his article, has been by far the most thorough and for reaching work undertaken on this subject. This article will appoar in one of the early issues of the Journal of the American Medical Apsociation. Thile it seams that the charge of "radium poisoning" caused the death of several girls (which charge was widely advertised through the press a fow months ago) is entirely unfounded, we naturally hesitate without further investigition - to malce the broad statement that radion in luminous material is unharmful, although wo believe this to be the case. Therefore, in order to be on the safe side, we caution you, if you have not already done so, to order youz operators not to point their application brushes between their lips, Thenever we receive any further authentic information on the subject, we shall be glad to pass it along to you Yours very traly, President. CBLEE-OB Enclosure (1) or guptecs EOS or Date IMIEHIOK