M AXfiELL, ADOPTION, LONDON YOUR 4-0 AND 4 2 P LEASE DELIVER FOLLOWING LETTER TO APPRO PRIATE O FFIC IA L OR O FFIC IA LS SIGNED IN THE NAHE OF ETHYL GASO LINE CORPORATION QUOTE WE ARE ADVISED THAT COMMITTEE I S BEING FORMED TO IN VESTIGATE ANY HAZARDS ASSO CIATED WITH THE D ISTRIBU TIO N OF ETHYL PETRO L STOP WE ARE THE SO LE DISTRIBU TO RS TO O IL COMPANIES OF ETHYL FLU ID OF WHICH TETRAETHYL LEAD I S A PART STOP WE AND OUR PREDECESSO R HAVE BEEN ENGAGED IN T H IS BU SIN ESS FOR FI V E YEARS AND MAY BE OF SOME SERV ICE IN CONNECTION WITH T H IS INVESTIGATIO N STOP WE W ILL BE PLEASED TO FURNISH THE COMMITTEE ANY INFORMATION OR DATA AVAILABLE TO US BEARING i UPON T H IS SU BJECT STOP DR GRAHAM EDGAR WHO HAS BEEN IN CHARGE OF OUR CHEMICAL LABORATORY FOR SEVERAL YEARS AND WHO I S NOW IN LONDON W ILL BE GLAD TO RENDER ANY SERV ICE HE P O SSIBLE GAN WHICH ALSO A P P LI E S TO ANYONE ELSE IN OUR ORGANIZATION STOP ASSURING YOU OF OUR FULL COOPERATION UNQUOTE WEBB KB 0001296

With reference to the analytical results, first, I think it wise to point out that the absorption of tetraethyl lead does not elevate the lead content of the blood materially, but it does elevate the urinary lead concentration greatly and promptly.

facts are known:except as bo the ooaurrcma or lack of ooearrnnea ; of IXInse# In the tsea working with ita* doooawl at the tine his Illness was contrasted# She fseta are detailed bo low in the asqnonoo of their oceuriHinco*. together wSMr the ovMohe ot% which tM dir^nool of fatal tetraethyl lead poisoning ros&s* According to Mr# TJurphy# concurred in by Mr# Carter, end I subsequently by Mr# P# 0* Ho Cranio#' one tank at the Hgeipa fcamin&X of Oktng fta'O ).!!

The early experimentalworktn this laboratory indicated the character of the hazards of the mixing operations and of all other operations associated with the industry# It became apparent that the compound tetraethyl lead was an exceedingly treacherous lead compound and that it would be necessary to rigidly regulate the handling of the material# From time to time, therefore* we have issued instructions based on the continued observations of Industrial conditions.

Ludwig Teleky, who stated, "Neither absorption by skin (ex cept of tetraethyl lead) nor absorption by scratched skin. ia. proved in workers, but in actors painting and rubbing in the whole body with white lead ointment."

If there was any accidental exposure to tetraethyl lead on the day in question, I should appreciate it if you would report it to me in some detail.

gated this accident and I discussed with their re presentatives the accident as they were particularly in terested to know whether v/e, at a ay time, had spiked these tanks with tetraethyl lead, our records show that this had never been none, however, the -uthyl Corporation felt that there was something unusual in connection with this accident as it was the first case on record where a leaded gasoline t-unu, used only as a storage tank, contained lead salts which gave off vapors fatal to workmen.

However, I believe that your article might have in sill fairness presented a more balanced and a more ob jective analysis of the use of tetraethyl lead in gasoline and the possible toxicological effects which it is claimed to impart by some, particularly Dr.

However, I believe that your article might have in all fairness presented a more balanced and a more ob jective analysis of the use of tetraethyl lead in gasoline and the possible toxicological effects which it is claimed to impart by some, particularly Dr.

If there was any accidental exposure to tetraethyl lead on the day in question, I should appreciate it if you would report it to me in some detail.

Second, there is a slow and almost imperceptible decomposition of tetraethyl lead in leaded gasoline, but tanks used over a period of time will contain small amounts of these decomposition products in the scale on the sidos and at the bottoia!

A further danger exists from the inorganic ieed compounds in the water bottoms and sludge re sulting from treating operations other than tetraethyl lead* IT J APFABSST, TK?

Dr* J# Heels #32 Avenue des Aaalcoa Brussels Dear Doctor Heelst I had the plea summer of visiting Brussels and of talk Dr Stessena of the Government Health D concerning the Introduction of leaded g Belgium It has always been m y purpose that wa have a capable medical advisor the mixing operations within any countr very much pleased to have Dr* Stassens you be approached on this subject* Since that tim frcm ocmmero!

PROOF A FACILITIES Lead-sodiun alley Eleotrolytio sodium Tetraethyl Lead Tetraethyl Lead Antiknock fluid (ROUP B FACILITIES Ethyl Chloride Ethylene Dichloride Vinyl Chloride QBOUP C FACILITIES Hydrocarbon pyrolysis Olefin recovery and purification 2.

March 7, 3.940 Dr* B# Hurtado Colombian Petroleum Cotap any Cucuta# Box 100 Colombia,* South America Dear Doctor Hurtado* I was very sorry to have missed you on the occasion of your recent visit to Cincinnati# for I should have been pleased to talk with you about various phases of our work* I am sure you obtained all of the practically useful Information from Dr# Sanders however* so that I trust your trip to Cincinnati served your purpose# I believe you received most of the reprints of our work which were available* On the other hand there was a series of articles which had been translated into Spanish# which# X believe# will be useful to you in that language# Accordingly I have sent you,under separate cover* copies of these translations* If you should find that you require additional copies of these translations# please do not hesitate to lot me know for I had these articles translated primarily for the use of medical men who are concerned with this problem* I should appreciate it if you would drop me a note from time to time# letting me know of your progress and specially of any difficulties which may occur# Our experience in other countries in connection with the occurrence of difficulties may well be of some value to you if such trouble should arise# In any case I try to keep in touch with what occurs in various parts of the world in this connection# It is possible that your attention was not called with emphasis to the rather serious hazards which may be associated with the cleaning out of storage tanks which have been used over a considerable period of time for the blending and storage of leaded gasoline# We have had a series of accidents In this country which have been the result of failure to carry out the regulations which we have prescribed in connection with this work* It seems that from time to time a group of workmen will Insist upon entering these tanks for the purpose of cleaning without being supplied with the necessary protective clothing# and especially with an airline hose mask# Under certain unusual oiroumatmoos it may happen that concentrated Ethyl Fluid Introduced into the gasoline in too rapid a streara,may sink to the bottom of such tanks and lie there over a period of months or years in the sludge# This happens, of course, only if there is a water bottom in the tank# Subsequently when men enter such a tank to clean it, they may have serious contact with concentrated Ethyl Fluid, and they may also be exposed to relatively concentrated vapors of tetraethyl lead# All of these things can be avoided by proper attention to the regulations which we have devised and which are given in detail in the booklet of regulations which you have# I call your attention to this point as being the one thing which is moat* likely to result in serious difficulties, in order that you may warn your people against this danger and urge upon them the necessity of proper precautionary measures* Cordially yours.