Mr.

A.

ASSOCIATED ETHYL COMPANY LIMITED Jjle</ istried Office: t he ade l ph i ,l o ndo x .w c .2 Jelddress a ll com m unications u n t ilffu rt k er notice to: ARTILEERY HOUSE, ARTILLERY ROW, LOYDOX, S.W. 1 > P v-* JO elcpJlO tie.

/v y / ' // January 22, 1940 Mr. 0.

ETHYL CORPORATION RESEARCH LABORATORIES 1600 W EST EIGHT MILE ROAD FERNDALE 20 DETROIT, MICHIGAN oo: Earl Bartholomew-% Sam D.

AIR MAIL June 17, 1942.

July 28, 1948 Mr .

Da camber 2 4 # 1941* Hr* C# C, Pumas, National i>efn3 Be search Coraaifcte# 1550 P Street, W. w., Washington, D.

~* Et h y l Ga s o l i n e Co r po r a t i o n Ma n u f a c t ur in g a n d Tr a f f ic De pa r t m e n t INTER-OFFICE CORRESPONDENCE PERSONAL AND CONFIDENTIAL PL E A SE A D D R E SS REPL Y T Oi-CH RY SL ER BUIL DING 4 0 5 L EX I N G T O N A V E,,NEW Y O R K CI T Y May 8, 1940 Dr.

Sub-Department of Industrial Health, Institute of Hygiene, The Universi ty, Glasgow,W.2. 9th April,1947.

Dr* Robert A.

Philadelphia, Pa., August 28, 19^4.

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NATIONAL LEAD COMPANY 111 Broaawav New Tcrk 6.