Ju ly 9, 1957 D r.

June 14, 1954 D r.

cos MODprr**erHaJt..iSnAg.. .CK-oleomhumodiertetaeue Mr. : a ?.

M.

/ l i A 5' .

U g U 3 t 1, 1953 Dp .

/ ETHYL CORPORATION RESEARCH AND ENGINEERING DEPARTMENT RESEARCH LABORATORIES 1600 WEST EIGHT MILE ROAD FERNDALE 20, DETROIT, M ICHIGAN May 18, 1955 Dr.

' FEDERAL SECURITY AGEN CY .

Ju n e 8, 1957 D r.

cc : Messrs.

THE ATLANTIC REFINING COMPANY PETROLEU M PRODUCTS 3144 PASHYUMKAVENUE PIULADEUUUA1, 1A.

V COFX FOR bT ti.

THE ASSOCIATED ETHYL COMPANY LIMITED NORTHWICH CH ESH IRE fele p h o n e N O R T H W IC H 3 2 41/7.

THE A SSO C IA TED ETH YL COM PANY LIM ITED A R T IL L E R Y H O U SE , A R T IL L E R Y ROW , L O Y D O Y , S.W. 1 telep h o n e: A B B E Y 3 9 7 4 teleg ra m s: E T H Y L P O R T , S O W E S T .

IN TER-O FFIC E CORRESPONDENCE Et h y l Ga s o l i n e Co r po r a t i o n Ch r y s l e r Bu il d in g 135 Ea s t 42n d S t r e e t NEW YORK November 21, 1950.