is referred to you for examination and report to determine whether or not his present condition and disability are the result of lead poisoning from the use of tetraethyl gasoline.

However, they have very little to do with the dangers of tetraethyl lead or Ethyl Gasoline, but are quite interesting with the gener al problem of lead poisoning* I hope to be able to re port soon on our experimental work on tribromanallne.

Subject: Lead Warning Signs Dear Hank: I do not wish to be "difficult*' in the matter of the warning signs on pumps, but I do want to make the point quite clear that the authority for the wording on these signs is that of the tetraethyl lead industry.

Obviously, you ccuid get the handlers of gasoline to testify that they have no knowledge of any such thing as any special toxicity imparted to gasoline through the addition cf this small quantity of tetraethyl lead.

Kehoe: Members of our staff have discussed the proposed substitution of tetramethyl lead (TML) for tetraethyl lead (TEL) in certain gasolines to be marketed by a major petroleum company.

Public Health Service to the use of 4.6 c.c. tetraethyl lead in aviation gasoline.

jr-.L '' 0*10 c.c. of pure lead tetraethyl applied to previously clipped skin of belly$ Given 16 such treatment from August 20 to November 25.

You will remember that I noticed the small of Tetraethyl Lead and its decomposition products as we approached tbo T.3.L. building.

. :: Our Mamifac taring Department idols rather strongly that Tetraethyl Lead shipped for purposes such as these should be colored with an oil soluble dye in sufficient quantity give the liquid a characteristic saada.

Centlemen: ' Kay I have all available information concerning the toxicity of tetraethyl lead gasoline.

This is the type of distribution Which] baa finds in cases where the exposure has been severe and bps been rapidly absorbent and which occurs a short time prior to death, and confirms our observation and impression that Kriynovioih died of acute tetraethyl lead intoxication.

In connection with their investigation of the relation of tetraethyl lead to lubricating oil performance, the Laboratories have done a certain amount of work in which tetraethyllead was added directly to the lubricating oil.

D bhcli Developwnt Company ilKtryv'iile California bear Charlie: .it the request of representatives of both Shell and Ethyl in New York, I am sending herewith one copy of each of two reports that bear on the use of tetraaethyl lead as a substitute in whole or in part for tetraethyl load in gasoline.

. :: Our Manufacturing Department fools rather strongly that Tetraethyl Lead shipped for purposes such as these should be colored with an oil soluble dye in sufficient quantity <v> give the liquid a characteristic sna.de.

,tetraethyl lead.