Document 0w0ajmZON26B52zw6JrVKnBn

AIA-88 September 29, 1343 Dr. Ludvig Sektoen, ^Executive Director Satinnal Advisory Cancer Council 21 ve31 Street !>*`gw izr Illlncls Dear Dr. Heitosnn Tkanka for your letter of September 2?. 1 ray state that arena the various pneunonoconlosee, asbestosls rar_>3 rent to si!locale in Industrial lnportance. It la a definite disease entirely resulting In disability in advanced, cases. It la characterised b7 flbrcals which begins about the temits! bronchioles and spreads Into the parenchyma of tie lung as a diffuse obliterating fibrosis. Chronic fibrous pleurisy and emphysema. are essentia! ccnccnnittant reactions. - The ambers of persona exposed to asbestos dust In this country Is difficult to establish.. Host of the cases hare occurred In the fabricating plants of Sorth Carolina and Pennsylvania where the fibrous mineral 13 woven with cotton to produce asbestos bloth, brake bands, and electrical insulation. A considerable number of persona are also exposed In the electrical Industries where 'isbestoa is used In Insulating not only wiring but cotor armatures. The U. S. Navy has had & real problem fron the use of asbestos In'Insulating narlne boilers, electrical Installations and other insulating work. I have always felt that asbestosls probably created no specific predisposition to pulmonary cancer. However, evidence to the ~quntraSyuuntlngera~~to*~accucul-ater In the last number of the Acerlcan"Journal of Pathology, Hocberger reports 3 new cases making a total of 13 In which the two conditions are associated. For this reason I do not believe, that we can afford to neglect the matter much longer. Under separate cover, I an sending you two copies each of reprints describing earlier Saranac Laboratory studies of the subject. Sincerely yours. ,,,, no .PRODUCED 01024 `JM - 83 r.nr.j^w Leroy U. Gardner, H. D. Director ..QG 0102 37 t _ --