December 19, 1973 Mr.

July 22, 1971 Mr.

Et h y l Ga s o l i n e Co r po r a t i o n Chr ysl er Buil ding 405 Le x i n g t o n Av e n u e K A K I - ri'Y ( OMMITTKK <,,>.

LAW O F F I C E S ALBERT HOUCK 5 W.

Howard Universit y COLLEGE OF MEDICINE DEPARTMENT OF PHARMACOLOGY WASHINGTON, D.

University of Cincinnati Medicai Center D E P A R TM E N T OF E N V IR O N M E N T A L H E A LTH K E T T E R IN G LA B O R A TO R Y (5 1 3 ) 8 7 2 -5 7 0 0 3223 Eden Avenue Cincinnati, Ohio 45267 October 23, 1978 Lawrence E.

ETH YL, CO R P O R A T I O N Ma n u f a c t u r i n g D e p a r t m e n t July 3 , 1973 PLEASE ADDRESS REPLY T O :-B O X 34 1 B A T O N R O U G E .

December 14, 1670 P.

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IRVIN G.

June 9, 1972 V Mr.

C.

November 3, 1972 Dr.

d epa r t men t o f en v ir o n men t a l h eal t h Ket t ering Laborat ory, College of Medicine, Eden & Bet hesda Aves.

November 11, 1971 George Roush, Jr., M.D., Medical Director Ethyl Corporation Laboratory of Environmental Medicine 1700 Perdido Street New Orleans, Louisiana 70112 Dear George: I have neither seen nor written to you for some time, ana I feel very much as though I have been unduly isolated (from you), although I do not acknowledge any intent on my part to isolate myself.