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I N TER -OFFI CE CORRESPONDENCC Et hyl Gaso l ine Corporat ion Ch r y s l e r B u il d in g 405 Le x in g t o n Av e n u e Ne w Yo r k December 21, 1936* Dr.

Ke n d a l l Re f i n i n g Co m pa n y PRODUCERS, REFINERS AND M AR K ETE R S 100% PURE BRADFORD GRADE PENNSYLVANIA PETRO LEUM AND ITS PRODUCTS M AIN OFFICE AN D R E FIN E R Y Br a d f o r d ,Pa September 9, 1938 Dr.

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August 6, 1937 D r.

At- r THE ASSOCIATED ETHYL COMPANY LIMITED j i|iiiH iiigjiijpji)iBiPaaM|i .............

12, 1937 Dr.

3-mo 7* 1937 Dr , J * Howard Bear d U n iver sity H ealth O ffice r Ur ban a Illin o is Dear Doctor Beards Ib is is a lin e to le t you know t h a t Dr* C h ar le s F .

EditorfartheUnitedStates D a v i d L.

March 1, 1935 Dr.

Gr ahamEdgar DIRECTOR OF RESEARCH Et hyl '-Gaso l ine Co r po r at io n Cukst sl ek.Buil ding 135Ea st `KHPSiheet Ne w Yo r k P. 0.

December 2$, 1931 Mr.