January V), 19^0 D5Ja1r2c, kGSsourenllevinvillaelnea,fG-BF, luBoirlediddienalgl Dear Doctor Bedell?

January 29 1931 Mr* Thomas S.

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May 19, 1944 19 M r .

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M A T IQ IM AL L E A D C O M P A N Y M ET AL DI V I SI O N Southwest Area 16th and Cleveland Granite City, Illinois 62040 Wm, R.

hirvi:- wres, patino tiW *, j -- . - . ..enCO laboratory of Applied Physiology College of Medicine university of Cincinnati Iinclunati, Ohio ' U.P..

October 29 1 9 ^ Dr.

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c 0 P 15 May 194-3 Ethyl Corporation Chicago, Illinois Dear Sirs* We need a small sample of lead tetraethyl for our laboratory experiments and analysis.

m rm m n of v m m w m * imp Braden Copper Company The use of tetraethyl lead for purposes other than an a actor fuel might not* at first thought, .

S AF E T Y COM M ITTED' O . 13 .

TH E AS S OCIATED ETH YL COM P AN Y LIMITED NORTH WICH CH ESH IRE Jelcphc/ie: N O R T H W IC H 2 2 3 7 .

NOTES ONTHE DETERMINATION OF LEADIN URINE.

June 5, 1951 Re 1C2 AIR MAIL Dr.