Document oDQgaxonDvJL00N6jQ067OpL3

x Septacbar 23, 1342 .. r Or# Ludvig aehtosc, Srecutlve lirector National Adviser? Cancer Council 21 Vest Sis Street [ Chicago 1C, Illinois ' Osar Or. Sshtoenc ' Thanhs Por rcur letter cP September 27. I car state that, aseng the various pneusoccconicses, asbestosia ranh3 cast to silicasIs Is industrial iupcrtanca. It is a dePInite disease entires.? resulting in disability Is adumced cases. It is chsrscterinsd b? Pihrosis viich begins about the tersinal bronchioles and spreads late the pareuch?ua op the lass* S3 a diPPua* obliterating Pitrosis. Chronic- Pihrcus pleurisy and ssthrsesa. are essential cccccnsiccaut reactlens. The rubbers oP persons exposed to asbestos v dust Is this counter Is diPPicult to establish, l-tost of the cases bare occurred In the Pabricatlng plants a- North Cars lies and ?easyylTnla there the Pihrtua slneral is vcvea vith cotton to produce asbestos iloth, brahe bands, and electrical Insulation. A considerable rrrlher cP persons are also arpo3ed In the elec^loa Industries vhere 'asbestos Is used in Insulating not onl? vising but enter aruatures. the 7. t. lav? has bad. a real preiles Chou the use c? asbestos In-Insulating sarins boilers, electrical Installations and ether insulating verb. I bare air-raps Pelt that asbestosls pssba'cl? created ns specific predisposition to pultonary cancer. Hcvever, evidence to the ccotrair continues to acctnulate. In ths last* renter oP the Anarices''Journal cP rathe 1c57, Seuierger reports 3 net/ cases cabins* a total oP 13 In volet ths tve conditions are associated* "or this reason I do cat believe that ve can aPPord to neglect the natter such longer. Under separate cover, I as sending rou two copies each cP reprints describing earlier Saranac Laboratory studies cP the subject. ' Sincerely /curs, Leroy U. Gardner, M. D U<AiS^LJ_I