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( F e b r u a r y 27, 1957 D r.

August 20, 1951 Mr.

lowember 20 195^ Sir Thoaas ollvar 7 HI la cm Placa Newcastle Upon Tyne England Dear Sir Thomas* Z wish to exprssa ay vary deep appreciation for the vary kind resmrks In your letter of July 2nd* I aa sosewbat delayed In replying by reason of ay absence for sone aontha free the laboratory* It la so rare e pleasure to receive an appreciation of one's effort, and It 1b b o unusual that a an of your distinction goes to the trouble 6f so expressing hisself, that I an all the acre grateful and appreciative of hat you have said* 1 shall taka the greatest pleasure In sending you other artielea hloh X and ay associates may write fro tlaa to tlae* Please accept ly snat cordial greatInga. ) {- Slnoarely youra RAKilS

aa E t h y l Ga so l in e Co r po r a t io n Ch r y s l e r B u i l d i n g 405 L e x i n g t o n A v e n u e rnce n o en c c New Y or k August Jlst, 1940.

University of Cincinnati, College of Medicine, General Hospital, Cincinnati, Ohio.

May 21, 1937 Mr.

December , 1936 Dr, 0.

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AYOR P.

<St .

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to tco> May 25, 1928 Mr* R.

sa f et y division Ro b e r t A .K e h o e ,M.D.