Document O3xBkMeRQraGeo4xo3551O9XK

bcc: H. K. Ball (2) R. Kehoev/ F. J. Schroeter Geptember 27# 1957 Mr. Ronald D. Macfarlaaa Department of Chemistry CARHEGIE INGTITCTE OF TECHNOLOGY Sehenley Pari: Pittsburgh 13# Pennsylvania Dear Mr. 14a.cfarlaae: As requested in your recent letter, we ere shipping this date 10 grains of tetramethyllead via Railway Express. In. order to adhere to our Coupaay's safety regulations, ve must have a signed release concerning the use of this toxic material and have# therefore, enclosed a copy to be signed and returned to us at your earliest convenience. A booklet pertain ing to our precautions for handling organic lead compounds in laboratories Is also enclosed for your study. If we may be of further service# please feel free to call upon us at any time. Very truly yours, ETHYL CORPORATION m Enel: 2 L/'r T'Ougladte^Supervisor'^ Process Development KE"'0009823