LEAD INDUSTRIES ASSOCIATION 420 Lexington A venue New York 17, N.

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N A TIO N A L LEAD COM PAN Y STAN D ARD M ETH OD O F TEST N o.

May 1 5 , I 94-O D r .

Esso R e s e a r c h a n d E n g i n e e r i n g Co m p a n y (FOR M ER LY STA N DAR D OIL DEV ELOPM EN T COM PAN Y) P.

KEHQRAHrH COICEBRIKO THE.

Se p t e m b e r 29 191+0 Mr.

Dr.

Study of Lung Function In Cor Pulmonale The; anoxemia and hypercapnia of cor pulmonale have long been thought to originate In difficulty in the exchange of gases between the lungs and the blood.

PRESIDENT I J

AIR MAIL February 8, 19*0 Mr.

ETHYL CORPORATION CHRYSLER BUILDING NEW YORK 17 June 1, 19^-8 Circular Letter No.

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PROCrDUTyZS LOR RESEARCH CCERR >sU','j.ij'c, 1>o 3 INTBRNATI ORAL LEAD ZLEC RESEARCH Oil;ANIZA CION I.

FORM OVJCOt E .I.d u Po n t fiSG.u S-fKT-OffESTABLISH ED 1 8 02 d e Ne mo u r s 5.