September 5, 1968 Mr.

August 5, 1963 H.

(YY THE KETTERING LABORATORY COLLEGE OP MEDICINE, UNIVERSITY CP CINCINNATI EDEN AND BETHESDA AVENUES CINCINNATI 1 9 , OHIO INSTRUCTIONS : BEFORE PROCEEDING PLEASE READ THE REVERSE SIDE OF THIS FORM The i n f o r m a t i o n r e q u i r e d b e lo w i s o f m a j o r i m p o r t a n c e .f o r t h e p e r f o r m a n c e c f t h e s e r v i c e t h a t y o u h ave r e q u e s t e d .

September 12, 1968 Mr. fi.

ETHYL CORPORATION lOO PARK AVENUE BUILDING AT 41st STREET NEWYORK 17, X.

May 28, 1969 Mr.

July 12, 1965 Dr. authorford T.

April 18, 1967 Mrs.

THE UNIVERSITY OF BRITISH COLUMBIA V A N CO U V ER 8, CA N A D A DEPARTMENT OF GEOLOGY Jan u ar y 8, 1961;.

c May 27, 1964 Mr.

August 26, 1960 Mr.

ETHYL CORPORATION ." ' TO D r.

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