Document N2NQv3vk8G5jBa93n57GqYbJV

3HCefflM5L E. I. ou Pont be Nemours & Company PKJMCNTS QCPAMTMKNT Inorganic Fibers Division Experimental Station May 13, 1975 J. A. ZAPP, JR. CENTRAL RESEARCH & DEVELOPMENT DEPT. HASKELL LABORATOST CARLSON-FORD L JtlTED - PAPER ON INGESTION OP ASBESTOS Carlson-Ford Limited of the U.K. are Interested in Fybex for beverage filters and apparently feel that the hazards from Ingesting, as distinct from inhaling asbestos and other short fibers, may have been over estimated. In previous correspondence, Mr. R. Shackleton, Managing Dlr^eor, referred to an article published by the Medical Research Council of the United Kingdom allegedly showing no signs of cancer In feeding studies with asbestos.'' I'm going to discuss the Fybev* business and-possibilities of licensing it with Mr. Shackleton in New Tork on June 13. In response to ay request, Mr. Shackleton sent ms a copy of paper referred to. Among the authors is our old frland and devil's advocate. Dr. Paul Gross. May I have your consents on it befors the June 18 seating? I'd also appraclata ths following information on asbestos to aid in answering questions that asy arise in ths discussion. 1) Is it true that there is no statistical difference in incidence of lung cancer between nonsmoking asbestos workers and ths rest of ths population? 2) Can yon give na a rough - ratio of tha incidence of lung cancer of tha smoking ssbsstos worker compared to tha anking nonworker? 3) Cam yon give aa a rough ratio of ths 1abidance of gastro intestinal cancer of ths asbestos worker coppered to ths rest of the population? Is there any sign of secondary causal effect here, es in the case of smoking with Lung cancer? *414 BCTTCP TH1MOS roe BtTTte LIVING . . - TH0OUOH CNfMIfT* DUP 0903542 i-iMWSi- J. k. Zapp, Jr. May 13. 1975 4) Is the Incidence or aesoeheliania still almost peculiar to asbestos workers, and is there any sign these cancers may have metastasized from primary sices elsewhere or is it known they are caused by fibers which have migrated in the tissue to these sites! a. M. LUOailHG HML: ghh Enel. v RECEIVED MAY 1'. HASKELL LABORATORY DUF 0903543