Ii MIDLAND, M ICHICAN October 3, 1958 PLAINTIFF'S EXHIBIT DOW-1387 ST0CI6804 Dr.

C `4|MI)nuiflD(IIU,|.A, s:jeu chemical corporation r Am 9, 19ft f. 0. 157* Attestloni Hr. , C. telbfall PLAINTIFF'S EXHIBIT *W- SHtU.

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5 As this aspect of asbestos fiber concentration to disease was reviewed, it was made known that the British were using a method whereby asbestos fibers were counted in the workroom atmosphere.

More EQUIP-M-E-NT !

VACUUM CURING CONCRETE RLOCI by HARPER S.

A R Z N E I MSIonTdTerdEruLck- FaOusR: S C H U N G (Arzneim.

ETH YL CORP ORATION HIGHER TEL CONCENTRATIONS Since 1956 Ethyl Corporation has reported to refiners from time to time on its efforts to obtain an increase in the maximum allowable TEL concentration in motor gasoline.

Gulf Refining Company Pittsburgh., Penna.

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Jamiary 6, 1950 Dr* B .V.Caldwell Standard Oil Development Company P.

Ea s t Tex as Pu l p a n d Pa p e r Co mpan y Eva da l e .Tex a s April 19, 1958 MAILING A D D R E S S P.O.BOX aiS,SILSBEE,TEXAS The Kettering Laboratory College of Medicine Eden Avenue Cincinnati, Ohio - ' Attention Dr.

912 Broadway Bayonne K.J.

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.- * Ethyl Corporation Confidential CONTACT REPORT aV )A Company Location Date Report by Present Socony Mohil Oil Co., Inc Paulsboro, New Jersey April 16, 1959 M.