A u gu st 3, 1956 D r.

April 11, 1952 Mr.

East Texas Pulp and Paper Company Ev a d a l e,Texa s April 7, 1958 MAILING ADDRESS P.O.

M*.

7A p r i l 19 3 8 Mr.

September 12, 1>547 Dr.

Becomber 29, %.$$& Dr* Graham Edgar Ethyl Gasoline Corporation Chrysler Building lew York C ity lew York Dear Graham . . k sh o rt tira ago I receiv ed a : .

.July 11 1935 Dp * Graham Edgar Ethyl Gasoline Corporation Chrysler Building Hew York City liovi York Boar Dr* Edgar* Ploase accept my thanks for your letter of July 8 til and for the critical examination of our paper which wo discussed over the telephone I think you brought out a very useful question and on to which I have been so close over a period of many months that I did not even take nob of It.

Aprii 7, 1971 J, Julian Chisolm, Jr., M.B.

Principal F.Dr .

Yonkers Laboratory I KE 0017017 Int er -Office Cor r espondence Et hyl Gasol ine Corporat ion 25 Br oadway N ew Y ork June 22, 1928 Dr.

June 23, 1S7G Mies Nell Conway 600 West Orange Grove Road Tucson, Arizona 35704 Dear Nell: As I told you in ray letter of April 0, J wrote to friends of mine - technical men ia the Detroit Laboratory of Ithyl Corporation, who would be most concerned in,the means of clearing the air of exhausted substances from the tailpipes of automobiles.

American Medical Association 1I I March 2 0 , 1963 1 1 '1 ARCHIVES OF ENVIRONMENTAL HEALTH EDITORIAL BOARD ( KATHARINF R.

November 5* 1248 Mr.

ETH YL CORPORATION RESEARCH LABORATORIES 1600 W EST EIGH T M ILE ROAD FERNDALE 20 DETROIT, MICHIGAN Ja n ur, r y 2 5 , 194 9 Ur .