Document e5kJpBV1xN87eJK6oRp20ExDp

C 0 ETHYL GASOLINE CORPORATION NEW YORK CITY August 21, 1934 Dr. R. R. Sayers TJ. S. Public Health Service Washington D. C. My dear Dr. Sayerst In accordance with Dr. Cumming* letter, we have revised our aviation contract to insert in the appropriate place the following clause ''Euyer may mix up to but not exceeding four (4) cubic centimeters of tetraethyl lead per TJ. S. Gallon of gasoline to produce gasoline of 87 octane number or above1' I do not know that you have a copy of our aviation contract in your files and for that reason, I am sending you one of our printed contracts and I have marked a few clauses in which you my be interested. Very truly yours. g e/l k j Enc. Graham Edgar KE 0009333