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.

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.

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 .

CLINICAL AFFECTS OF TETRAETHYL LEAD (TEL) POISONING.

newcomer, I can safely say that the average Doctor on this side knows nothing whatsoever about tetraethyl lead.

Turner of Esso Standard of New Jersey in our endeavor to obtain the quotation and delivery date on one (1) drum containing 55 gallons of iso-octane, each gallon to contain six cubic centimeters of tetraethyl lead--the drum to be non-returnable, and to be accompanied by a National Bureau of Standards certificate as to specifications.

Dear Doctor Calingaert l , On March 22 Doctor Kehoe wrote to you, sending you a copy of "A Study of the Relative Evaporation Rates of Tetraethyl Lead from Gasoline and Vitol* and. requesting :Iyour considered judgment as to its validity in relation to the practical problem presented Doctor Kehoe recalls receiving your comments, but is unable to locate the letter.

Dear Doctor Calingaerti On March 22 Doctor Kehoe wrote to you, sending you a copy of "A Study of the Relative Evaporation Bates of '.Tetraethyl Lead from Gasoline and Vitol" and requesting riyour considered judgment as to its validity in relation to the practical problem presented Doctor Kehoe recalls receiving your comments, but is unable to locate the letter.

c 0 p Y Post Engineers, Petroleum Section 1391 AAF-BU (NAD-ATC) APO #406, c/o PM, Hew York 30 Say, 1945 Medical Dept, Ethyl Corp. 405 Lexington Avenue New York City Dear Sir; , I have been exposed to concentrated tetraethyl lead solution, through prolonged inhalation of vapor and con tact with the liquid on hands and clothing from a leaking quart size container of 1-T mix.

/ C 0 p Y Post Engineers, Petroleum Section 1391 AAF-BU (NAD-ATC) APO #406, c/o PM, Neu York 30 May, 1945 Medical Dept, Ethyl Corp. 405 Lexington Avenue New York City Dear Sir; , I have been exposed to concentrated tetraethyl lead solution, through prolonged inhalation of vapor and con tact with the liquid on hands and clothing from a leaking quart size container of 1-T mix.

, 1941 Mr, J, f, Olsen, Chemical Engineer The Turbo-Mixer Corporation 247 Park Avenue Bew York, lew York Soar Mr, Olsent W@ acknowledge, with thanks, receipt of your letter of January 24 regarding our relieving you of the sludge sample containing an appreciable amount of tetraethyl lead which you had received from on of your clients* I am transmitting your letter to Mr* 0, riassemaa, Division Manager at our Deepwater Plant, asking him to handle this matter further with you to arrange the most appropriate method of shipment, Very truly yours, J, H, Schaefer -2 , :.

Under high temperatures it would be theoretically possible, he stated, for the percentage of tetra ethyl lead in the atmosphere to be ns high as the percentage of tetraethyl lead in the gasoline.

Petroleum Series, 99; Gasoline, 100; Occupational Exposures, 100: Path ology, 100; Signs and Symptoms, 100; Laboratory Findings, 101; Dis ability, 101; Treatment, 102; Illustrative Cases, 103; Tetraethyl Lead, 106; Toxicity, 106; Pathology, 107; Symptoms and Signs, 107; Prodromal Period, 107; Physical Examination, 107; Complications, Sequelae, and Convalescence, 107. 99 CHAPTER X The Aliphatic Hydrocarbons--Cont'd.................................................................. 109 The Alcohols, 109; Methyl Alcohol, 109; Ethyl Alcohol, 110; Propyl Al cohol, 110; Butyl Alcohol, 110; Amyl Alcohol, 111; Treatment.

Automobile gasolines are not permitted to have more than 3 c.c. of tetraethyl lead per gallon, and at this concentration or even a little higher, the opportunity for lead absorption is negligible, under the ordinary conditions of commercial handling.

For our own purposes in the tetraethyl lead industry ve do not regard the conditions as satisfactory If the lead concen tration is in excess of 0*75 mg. of lead per 10 cubic meters of air.