W I;hQMPgh ^Oeffi, iSS* 'ills investigation a contemplated by ourselves fend agreed upon In principle at a conference in Cleveland# Ohio, on April 2o, 1:943, is to be pursued in two general and complementary phases, namely; (a; determination of the potential hasard of contact of the skin with the "vitol'* mixture containing 3 ml. of tetraethyl lead per gallon# by subjecting experimental animals to such cutaneous contact with the product under conditions and by means comparable to those employed in the investigation of the potential hasarda of cutaneous contact with gasoline containing $ ml. of tetraethyl lead per gallon; lb; determination of the apparent hasards of lead absorption on the part of persons who nave been,and are to be, exposed to such hasarde in the conduct of work which involves the preparation# handling and use of "Vitol'', by carrying out a systematic program of clinical and analytical examinations of available personnel.

I ronder if you would be kind enough to write then n letter, perhaps telling them in a general way what the effects of tetraethyl lead tire when added to lubricating oil.

\ 'T We have already received the two smaxi cansv of tetraethyl lead and have proceeded with our experi ments.

Lewis: I dare say the reason you do not have in your files corres pondence on the subject of the ordering of Ethyl Fluid and tetraethyl lead outside of laboratories, is that this was apparently a three-ring session between Kaley, Calingaert and, myself.

Coheir; I have received a letter from Sergeant Cohen, asking for infor mation about tetraethyl lead, and I have sent him all of the infoiraation ve have.

Kehoe: Thank you for your letter of June 15, enclosing the draft of "Changes in the Regulations for the Sale and Distribution of Gasoline Containing Tetraethyl Lead".

December 12, 19^9 - Completion of Sixth Tetraethyl Lead Building.

Georg Callhgaert Ethyl Gasoline Corporation 783 East Milwaukee Avenue Detroit, Michigan Dear Cal* I have seen one of the simpler types of mercury detectors as supplied by the General Electr1o Company, and I am very much Interested in knowing that they have developed or are developing a more precise equipment for this purpose* Hot only am I interacted in this device in connection with mercury' closure, hut I am also definitely interected in the application of some such principle for the detection of tetraethyl lead* You are wellaware, no doubt, that the instrument would ho of very little use to us unless it would give fairly accurate quantitative figures* If' th5.a could be done* I am sure that we could find good use for such equipment.

Coheir; I have received a letter from Sergeant Cohen# asking for infor- \ mation about tetraethyl lead, and I have sent him all of the \ infoiraation ve have.

Kehoe Laboratory of Applied'Physiology University of Cincinnati Eden Avenue Cincinnati, Ohio Dear Dr- Nehoe: This will acknowledge receipt of your letter of July 25, 1940, in which, you ask for a date Tvhich is mutually convenient to discuss certain matters per taining to tetraethyl lead.

As to the knotty problems that you are coming upon in connection with tetraethyl lead and etyhl gasoline, I will be glad to discuss them with you at any time that is mutually agreeable.

I have only one other comment to make, and that refers to the use of dye in this tetraethyl lead.

As to the knotty problems that you are coming upon in connection with tetraethyl lead and etyhl gasoline, I will be glad to discuss them with you at any time that is mutually agreeable.

Lewis : I dare say the reason you do not have in your files corres pondence on the subject of the ordering of Ethyl Fluid and tetraethyl lead outside of laboratories, is that this was apparently a three-ring session between Kaley, Calingaert and, myself.

Van Hartesveldt of Thompson Products Company I told him of the results obtained in your Laboratory, both on the matter of the evaporation and selective absorption of tetraethyl lead by suspended material.