University of Cincinnati College of Medicine Cincinnati 45219 Ohio Dear Dr.

Saptem'oer 20, 19l|-G "EC-Uleotrhwhs.ryyYGilosorlrGaerihkrcaasmCBoluiiEt.inylddogianCrg;orporation Dear Graham: Thanks very much for your mmolqafoeutmritettoeehrrsaenpcsdeoloeufcmapirSofwileicynphttieoscamrhridtbhIleeeIrs3sm3ae.7cnekmstthonoyorwowawnuiildett.uhhdmgayeImoucaciaregtnrhcottoansmheicneeamveeaytnhdotbuasverateonnnoptnaoegtihnbiete.othstehr In tiie first instance my reference' to the ''complete control of all operations, etc

O R -S*0t E.

EDIT ORIAL DEP ARTMENT M O R R IS F I S H B E I N .

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STATE OF OHIO DEPARTMENT OF HEALTH Division of Industrial Hygiene Thomas F, Mancuso, M.

FORM 937 .X P m LAW DEPARTMENT TIDE WATER ASSOCIATED OIL COMPANY ASSOCIATED DIVISION 79 n ew Mont gomer y St r eet Sa n Fr a n c isc o .

June 9, 19^4 19 D r .

July 22, 191+0 Mr.

N29574 11 Data and Correspondence Sludge, Scale and f'ater Bottoms -s from Gasoline Storage Tanks oo CO 02 o Ur Required: March 4 I9I4B Determination of lead compounds present Results Per Cent Per Cent Lead as Lead as Lead Tetraethyl Triethyl Lead <0.00001 O.OOO3 Per Cent Lead as Diethyl Lead Halides Q.OOI7 Per Cent Lead as Di- and TriethylLead Halides and Carbonates 0*00045 Per Cent Lead as Inorganic Lead 0.225 Reported: 3-24-48 0009888 SUBJECT Standard Oil Company - Steel EL Segundo, California DATE April 23, 1948 I regret very much not having answered your letter of March 31st sooner, regarding scale from side plates of a gasoline tank which you analyzed.

ETH Y L CORPORATION lO O P A R K A V E N U E B U IL D IN G AX 4 1 s t S T R E E T N E W Y O R K IT, 1ST.

fMN.

November , 19^-0 Dr.