SKELLY OIL COMPANY INSURANCE DEPARTMENT C .

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September 15, 1938 Mr.

October 4, X 939 Dr* Carlos Otollna Log Lechosos a l^nte Brian 220 Caracas* D, F* Venezuela bear Doctor QtoXln&s I just received, word that leaded gasoline is to be blended in the near future in Venezuela by the Shell people at their San Lorenzo refinery, and by the Jersey people as well, Shis brings me to wish to complete the arrangements discussed with you by my associate* Dr.

August E* 1937 Dr* Carl M* H lllenbrand Plant Physician Harrison Radiator D ivision General Motors Corporation Lockport* Hew York Dear Doctor Hillenbrand* tI a a 3 e n d in ^ y oovu^hieerew ith reports on and The resu lt on^ B | i a within n o r m l^ fS x t^ ^ n fx o that on ^ ^ f l ^ f f o b a b l y not s i g n i f i c a n t l y h igh from cllrm ja3^ > oln t o f view but i s in d ic a t iv e o f some s lig h t lead exposure* or i t is at le a s t suggestive of such exposure* I am a ls o send in g you th com plete s e t of r e s u lt s on the blood samples and th e spot samples of u rin e which I obtained w hile at the plant* These are fo r your information aid for the sake of seeing the range o f valu es which i t is p o s s ib le to obtain in a group o f men who show no c lin ic a l evidences of In toxication * I have checked w ith a lead p en cil those re su lts which are s u ffic ie n tly h ig h to r a is e some q u estio n in one*s mind as to t h e ir s ig n ific a n c e * i f c l i n i c a l symptoms o f any kind were to d e v e^ i^ ^ a o w ey er , there i s only one* namely th at which is a sso cia ted with such sympTomB and p h y sic a l fin d in g s as might be in te r p r e te d as t o x ic symptoms due to lead* ' As I have in d ic a te d in a l e t t e r which I wrote Mr* Jen k ins a few days ago* I th in k a l l o f th e se symptoms and p h y sic a l s ig n s are b est explained otherwise* but the coincidence of such find in gs with a urinary value of 0*1?

i n t e r -o f f ic e CORRESPONDENCE Et h y l Ga s o l i n e Co r p o r a t i o n Ch r y s l e r B u i l d i n g 4 0 5 Le x i n g t o n Av e n u e Ne w Yo r k May 10, 1937 Dr.

Gr a ha m:Edga r .

Gia u a m Ed &\b D IR ECT O R O F R ES EA R C H Et hyl Gasol ine Corporat ion 25 l i OADWAV NkwYokin January 27, 1930 YonkeBrosx,INREPLYPLEASE REFERToP 0 . 3H9ew0 York DUCCroni.nlilvceRieg.nresnAiaot.ytfiK,MoeOhfeohdeCiiocininceinnati My dear Kehoe: bwmMttacsaociIhnhsoalfeoocegoyhanuvlrDsreaaleelkttodeonvmaa.unnepoiorpagtanglftelalHaorrehdrwbohherysett.leynmocoieasesaS.sceranetaTonanleapkapttrtnhtdlohIgaiaoliitnyrntstrarsyyhdatctsaiionhcmiaatcniloastifa,staoderncednrtnondehdwmDhoehaaahinwnunatitemenhutdcsrnonohhaabvcuteDpttohpeateelhodsorepreealhhtvclrnldi*ietap,eeuimvcncrraleydwoyaitaoelrnhnHbt,t.ashditgaisaeiootonstibnohsotdHtleteydhoetieawsememlfcncubooalftcpihsodrsenrcgulaueayopodhrnirymarauetoengwdeealribieddvasnjornodenotsteutabhgy.turelnoydoaasantodgnafttmroewhgesInItohiorhedmimwoaeoaeosnedsuxeitfindthiaxfrpthxhwetpmatlormarassseraeepmiiotnamnthwbcaenruoeigneiafneemnadofyenaurtltnteyanrhtimhiaatssiooocbepbooiennnpduauolrgheaorttuiroiaelrtsmodyxiu wlcttjyhieaoreclinottiS.ncnwoagtrnihaHtdhenteoioatctsuioeyutnolsblutp.jhseeefccomItirae.awpltaipohsurtaoflsdrtv}aanhalketpoopwefrgxeiiopclvulirearebtseMeasioefgIdnutlailcdoilaffltsoDyytaooetuguepermawtreotimDnplltiren.nwaitoPs,rnriaittocenoednmhIeti(hsoeanfmrmeasenuodkbfi KE?

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Et hyl Gasol ine Corporat ion J.H.SCHAEFER MANAGER Dr.

it \ INTBR-OFFICB COm U PONOKN CC H "O Et hyl Ga so l ine Co r po r at io n Daxton Office Mu t u a l H o m e B u i u j in g 120 We s t Se c o n d St r e e t Daxtoi,Ohio March. 21, 1934.

Et hyl Gasol ine Corporat ion Chrysl er Buil dinq 135 East 42*1?

June 2, 1932 Mr.