ty'> j i L.i A ; S T .

April 16,1927.

Trom t y * desk a i %; &>^j&*4 ^/B4SRT A.'

April 0, 1970 Mr.

,July 19 1940 Mr*.

January l6 , 19*10 Mr.

THE ASSOCIATED ETHYL COMPANY LIMITED THE ADELPHI, LONDON, W.C.2 ( dUrs: ETHYLPORT.

Jije al Assonaimt n r t Jf SOfitr b ttn i S t r i c t <Itrago September 20, 1930, Dr.

FORDSON TR A CTO R S ACCESSORIES 8c SUPPLIES Phone 70 THE REAL CANADIAN CAR LI N COLN MOTOR CAR S J.

August 1$, 1958 41*. burr L.

May 28, 1949 Dr* George Calingaert, Ethyl Corporation, 1600 West Eight Mile Hoad, Ferndale 20, Detroit, Michigan.

INSTITUTE OF ENVIRONMENTAL HEALTH KETTERING LABORATORV (513) 672-5700 University of Cincinnati Medicai Center 3223 Eden Avenue Cincinnati, Ohio 45267 February 11, 1980 Lawrence E.

GOVERNM ENT OF WESTERN AUSTRALIA DEPARTM ENT OF PUBLIC HEALTH 57 M URRAY STREET PERTH In replying please quote DDL/CT LETTERS: BOX 134.

THE SCHOOL OF M EDICINE DEPARTMENT O F ANATOMY THE U N IV E R S IT Y OF N ORTH AT CHAPEL HILL 27515 CAROLINA January 22,1965 Dr.

July 11, 1969 Mr.