Letters Sent to F.E. Stringer, July 12, 1926

July 12th, 1926. Elgin National Watch Company, Elgin, Illinois. Attention: Itr. E. n. Stringer Director of Manufacturing Gentlemente Enclosed herewith you will find an article entitled, "Radio Activo Material an Industrial Hazard1", by Dr. Prederick B. Flinn, Ph. D. , Assistant Professor of Physiology in Industrial Hygiene, College of Physicians and Surgeons, Colunbia University, which treats of the so called "radium necrosis" or radium poisoning casos. The investigation by Dr. Flinn, which formod the basis of hia article, has been by far the most thorough and far reaching work undertaken on this subject. This article will appear in one of the early issues of the Journal of the American Medical Association. While it sooms that the charge of "radium poisoning" caused the death of several girls (which charge was widely advertised through the press a few nonths ago) is entirely unfounded, we naturally hesitate - without further investigation - to maice the beoad statement that radiun in luminous material is unharmful, although we 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 your operators not to point their application bruahes with their lips. Thenever we receive any further information on the subject, we shall be glad to pass it along to you. Yours very truly, President. CBLEE:OB Inlcosure (1) 3° ow yo 202 ajen