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.

January 15, 1945 UDBNI.urH.re3BS.aePmthouuefbealldHicaKte.W1teP4e,ea3elMekthr,arr3S1ycrela.rnbvdbic.uergeon Osar Doctor Peck: coM2Stha,rueniresgt1oete9iennop4lgnio6eds,idoanIycftna,Toss.tnhhCscijipssehnericAncrweaimniMglgeaolrr,.ldaoaBcpaeknpcrynoairsAopvniweieosdrslsnei'ondtcorggsiehe,aqobtireouuoeflendcpsoertebo.iopsefuetrnr2Isenoteaew,fdcduhiytlhesboldtyaurktriwyaeoetlliheuptehPttyaihenostyuersattihhoactieedifnavgnJaniasnseneinxsduautnaadrnwolynoeetk tyesDntityhhosoorepnetausorserltmnsiI,nagnapitnotoahddoodnfausuddwsessPsesottkspJ"1hurruioilyinddoaiaassgsgfllsimdocirbedtaHiniehaselelnyyenyerbtmgaswrobsiasiaeifeeauwttnhdpsobiiyp.rstjshoeyeeootussonsosrueesteww,anisbrbttoipheabsluueheauttlidfcttoattttncoohwsteheatetoenrohtivnwafivegritsrhiseusolewitlbwxosawjiebethhteosooahpnrtrteguiraeoeoslsiapnniflbdgactlmhpaeh"mCbtanetodWrosrotoi.uueetlifnsoednfotnaltIneyhvottmsweefdiintoInahsytidditsoonurasraeesHuiftntapttyrhectloigoireortazieomeleen;-di evfplpioaaepplvleeeirrc,. uodnlei"taGiWlssoe,nwdeoiidNtchecwpuflpuaPannhtgaiouosnsensaailnsokfafeoincIngntei,doDunarsns.td,rCiaseaorlteeyDf.oePrrTtm.hhaM,atoicflCoowogrorydu"ilndtoowllheupiascrviehoes,neInoitinblaeyour dtthoisecthoaeneteiatnibnuogevSehbaotetuhlodhounegctlhdehe,tsfuh1no9rnt4whd5eevmtrehreea,ertrtIiainntgwgloeebumeldyeoonubatesnhegfaeovllaerldedtshet,oelewcgpttreeowtdgiyrlafolmo,urr.oyrfeoSacuhcorotuuiplrodasnep,er. fours vary truly.

PRESIDENT I J

April 23, 1945 A IF; MAIL Mr.

AIR MAIL February 8, 19*0 Mr.

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

duc ; u. v. nona E. 0.

December 3, 1959 AIR MAIL Mr.

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

In t e r n a l m e d ic in e W ILLIAM H A RPER, M.

IRVIN G.

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.

INTER-OFFICE CORRESPONDENCE Et hyl Gasol ine Corporat ion Chr ysl er Buil ding 135East 421TMSt r eet N e w Y o k e December 16, 1932. ' Dr.

N TER-OFFICE CORRESPON D EN CE Et h y l Ga so l i n e Co r po r a t i o n C h r y s l e r Bu il d in g 135 Ea s t 4 2 nd St r e e t N E W Y O R K January 29, 1932.