Fishbeln: I am sending you herewith an article v/hich contains the results of several years experi mentation with tetraethyl lead* I am sending It to the American Medical Association because 1 think there are some matters In it that are of interest and importance to the medical profession at large.

Gumming: I have gone over your letter concerning the new sign for the pmps for tetraethyl lead gasolene, and entirely approve of it, and I have a note from Dr.

c 0 P 15 May 194-3 Ethyl Corporation Chicago, Illinois Dear Sirs* We need a small sample of lead tetraethyl for our laboratory experiments and analysis.

Wfhera Superintendent, Tetraethyl Lead 8 "Freon" %.

Kehoe and our management yesterday, the following policy was agreed upon in connection with distribution of the medical report from the Kettering laboratory entitled "An Investigation of the Potential Hazards of Exposure to Lead Associated With the Handling and Use of Gasoline Containing An Antiknock Fluid in Which Tetramethyl Lead is Substituted for Tetraethyl Lead:" 1.

We have been unable to locate any literature relevant to this class of compounds other than the sort which you have contributed to regarding tetraethyl and tetramethyl lead.

If by finding some lead in urine 3 or 4 years after a man came in contact with Tetraethyl gasoline In small quantities of 2-1/4 gallons per month, used in starting small engine and cleaning some machinery, a doctor can say that lead poisoning was contracted by absorption through the skin, it would seem that your profession would be assuming physical facts based upon the wildest imagination.

She sign is supposed to attract the attention of the motorist, however, and to give him suitable warning, so to speak, that he is purchasing gasoline containing tetraethyl lead .

The tests in question were repeated using gasoline colored red but containing no tetraethyl lead.

I mistakenly assumed from a hurried glance at the ac companying letter from the Hew York office that you had already been given UK inswer Th to let you know that the records of the Ethyl1 Corporation indicate that this grade of Sinclair gasoline in the area near Syracuse during the past year con tained quantities of tetraethyl lead that varied between .92 and 2.0 c.c. per gallon.

New York office that there was *A movement, on foot: in California, to limit the amount of tetraethyl lead per gallon in gasoline*.'

With respect to your question, I sec no reason to believe that tin.re is much difference in the products of the combustion of tetraethyl lead in various parts of the world.

i l In the matter of the studying of the effects of Vitamin nC " in the case of workers in the tetraethyl lead area, some con siderable delay in the preparation of this article for publi cation occurred.

Three is no regulation, but ve have an understanding with the Surgeon General in Washington and with the Health Authorities in Ottawa that ve will be responsible for the maintenance of the neces sary warning on pumps dispensing gasoline treated <dth tetraethyl lead.

Corporation Chrysler Building New York City New York Dear Grahams I have a letter from Sevan together with a report from Morganthaler, indicating that the Gexman health authorities have raised certain questions as to the- hazards which might be expected to arise from the use of leaded, gasoline in stationery motors, particularly in mines and in other enclosed places* ^hey have also questioned the degree of accumu lation of tetraethyl lead in motor lubricating oil, and have specifically requested Morgenthaler to obtain information on these points as the result of experience and observations in the United States and elsewhere.