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.

Pelz: We have received correspondence from the Standard Oil Company (Indiana) concerning your request for the equivalent of 300 cc's of tetraethyl lead.

Keohe: e have several men in our operations who are exposed to mercury compounds and Tetraethyl Lead.

Industry and EPA Hazardous Haste No Acutely Hazardous Haste P10B P018 P10B PI 15 P109 PI 10 pin P112 P062 P113 PI 13 P114 PI 15 P045 P049 P014 P116 P026 P072 P093 P123 P118 P119 P120 PI 20 P001 P121 P122 Strychnidin-10-one, and salts Strychnidin-10-one, 2,3-dimethoxyStrychnine and salts Sulfuric acid, thallium(I) salt Tetraethyldithiopyrophosphate Tetraethyl lead Tetraethylpyrophosphate Tetranitromethane (R) Tetraphosphoric acid, hexaethyl ester 'rhallic oxide ihallium(III) oxide Thallium(I) selenite Thallium(I) sulfate Thiofanox Thioimidodicarbonic diamide Thiophenol Thiosemicarbazide Thiourea, (2-chlorophenyl)Thiourea, 1-naphthalenylThiourea, phenylToxaphene Trichloromethanethiol Vanadic acid, ammonium salt Vanadium pentoxide Vanadium(V) oxide War far in Zinc cyanide' Zinc phosphide (R,T) H.

Gentlemen The Surgeon General of the United States Public Health Service issued Public Health Bulletin, Number I63, in 1926, having to do with regulations for the distribution of gasoline treated with tetraethyl lead.

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.

It does not appear that any investi gation on our part is indicated at the present time since there is no reason for believing that the nature of the manfs illness was such as to indicate exposure to lead tetraethyl.

/ 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.

Keohe: e have several men in our operations "who are exposed to mercury compounds and Tetraethyl Lead.

Cumming* letter, we have revised our aviation contract to insert in the appropriate place the following clause ''Euyer may mix up to but not exceeding four (4) cubic centimeters of tetraethyl lead per TJ.

, 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 , :.

I take the liberty of reminding you of my request for some bibliographical references or review article on the gen eral problem of lead tetraethyl toxicity.

A CONFIDENTIAL REPO':-T ON CAGES CF TETRAETHYL LEAD INTOXICATION ARISING CUT OF THE CLEARING OF AVIATE K GASOLINE STORAGE TAMS AT KALE, DORSET, J.NUAEY - MARCH, 1951.

Generally speaking, the whole problem is one of prevention and no difficulties of any kind should occur if the plant is operated properly and if the men follow the regulations, file dangers of exposure to tetraethyl lead are quite consideraDle, but they can be completely prevented by means of proper care and suitable equipment.

Generally speaking, the whole problem is one of prevention and no difficulties of any kind should occur if the plant is operated properly and if the men follow the regulations, file dangers of exposure to tetraethyl lead are quite consideraDle, but they can be completely prevented by means of proper care and suitable equipment.