Document K6k76Y0Qwk8X1BndEGjqYRJ6N

4 %w * Metropolitan Life Insurance Company FkEOERICX H.EcKEK. Ombmuta/tinaaMd Leroy A.Ljncoln, aom ANTHONY J.IANZA.M.D. iMWWi>itflm(w sw tork crrr December 13, 1937 Ur. Usnfred Bowdltch, Director) Divi6loB of Occupational Bygiene, 23 Jcy Street, Boston, Vmb> Dear Ifenfrsdt 1 recent number of tbe Public Health Reparte had a surrey of an asbestos plant aade by Bioonfield and one of his staff. They state that everything considered they think fire Billion particles is a pretty fair threshold Unit for the asbestos industry and I agree with .them. - I do not know what to say about Ur. Dewey's opinion and 1 can not inagine upon what the opinion is baaed. of codrae, the asbestos people In Canada hare advanced that idea for sone tine as an explanation of wty as bestos; seems. to be more clinically eevere in England than...in. this country but . . - I have', always had the. feeling that, theirargument wm niu'tlyaMd^by Tscdf-intereatV. - 'rather. than"to:.moke a-,.scientific;:contribution^ v>t/have;hi^.jthe';f6eliag far some; // " ' time' that;asbestosls;0\-pretty/:wh-;.of.';Vw that asbestos dust in sufficient quantity will house a pulmonary fibrosis. I......... am not sure that asbestosls alone will produce disability or death. I think that in "lbs reported cases of fatal asbestosls they hare put the cart before tbe horde - that is to say, tbeae individuals hare died of heart disease and because they worked in an ssbestoe plant and had some pulmonary fibrosis, their deaths were charged to asbestosls. In the complicated cases, death was due to tuberculosis* Tuberculosis and heart disease are the two^Leadlng causes of death among industrial workers and it is to be expected that the asbestos workers would hare their quota. However, this is just an opinion of mine. I am engaged now in running down all our death from ae~ bestosis. Some time in January or February, I want to go up to Boston because in this series which we hare, the only post-mortems were thoee done in Boston by Dr. Timothy Leary and, incidentally, I may use your good offices to get en introduction to Dr. Leary as I want to discuss these cases with him. Best regards. Sincerely yours. Plaintiff's Exhibit S-GM-9.1 1. J. Xansa, M.D. Assistant Uedicel Director ^000260^ y ......... ^ SCF-ALLF-00480