,A pril 21 1939 H r.

April 20 1935 Mr* D.

IN TER - O FFIC E CO RRESPO N D EN C E Et h y l Ga s o l i n e Co r po r a t io n Ch r y s u i B u il d in g -IOS Le x i n g t o n Av e n u e N e w Yo k k June 7, 1937 Dr* Robert A Kehoe My dear Bobt With further reference to your letter of May 24th, I enclose copy of Report CR-20 in v/hich there are a number of analytical data giving the amounts of lead in crankcase oil.

Et hyl Gasol ine Corporat ion Ch r y s l e r Bu il d in g 403 Le x in g t o n Av e n u e Gr a h a mEd g a r DIRECTOR OF RESEARCH A p ril 27, 1936 Dr R o b ert A Kehoe U niversity of C incinnati College o f M edicine C incinnati Ohio ' My d e a r Kehoes I n accordance w ith y o u r l e t t e r o f A p r il 1 7 th , I am sen d in g you under s e p a ra te cover 123 co p ies o f th e p aper on Normal Lead to g e th e r w ith 139 c o p ie s P a r t 1 o f t h e t e t r a e t h y l le a d i n v e s t ig a ti o n and two copies o f th e Bureau o f Mines Report I th in k your preface and contents are e x ce lle n t and i t w ill be f in e t o h a v e a l l o f t h i s m a te r ia l to g e th e r i n one p o i n t .

/ Gr a h a m Ed g a r IRECTOR OF R ESEARCH Et hyl Gasol ine Cor por at ion - .

February 3, 1930 O r .

/( February 12 , 1930 There, are two possible defenses,, without consid ering any strictly legal and technical matter9 of whleh 1 have no knowledge.

f "...

September 2 ^ t 1937 Dr* J# P# Peattie Hoi Bo#l82 Hospital Department Tidewater Associated Oil Company 79 New Montgomery Street San Francisco, California Dear Doctor Peattie: Please accepi^r^thanka for the information on the death of Mr# ^ M | J H ^ a n d the present status of the case from a medico-legal point of view# I have two definite suggestions to make# First it is necessary to make a rather careful interpretation of the results of Dr# Moore*s analyses on the tissues# The range of values for the load concentration in the bones and other tissues of normal persons is not a3 clearly defined a3 one might wish* However one does know something of the quantities that have been found in the tissues of persons without exposure in the lead trades* Dr.

Copy to Dr* fc*dgar September 1?

COPY Mr.

f March 7, 1930 m Mr.

IRVINGGRAY, M. >., F.

ESSO STANDARD'.

December llj., 1938 Dr.