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

ASSOCIATED ETHYL COMPANY LIMITED Registered Office-, t h e a d e l p h i , l o u d o n , t v: c. 2 A ddress a ll communications u n tilJ u r tle r notice to: A R TILLER Y H O U SE, ARTILLERY ROW, L O N D O I, S.W 1 lelephotw ,; A B B E Y S 9 7 4 --7 felegturns: ETH Y LPO R T.

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