The matter concerned in our discussion mas the imminent likelihood of the use of tetramethyl lead as a substitute in part or in whole for tetraethyl lead.

Or blatant advertising of a new lead compound might create a, competitive situation that would result in reprisals to the discredit of tetramethyl lead, or even tetraethyl lead.

The portable "Uni-Jet" Lead-In-Air Analyzer was revised to provide constant rate collection of tetraethyl (TEL) and tetramethyl lead (TML).

It is possible, however, that certain drivers will make strenuous efforts to secure compounds con taining tetraethyl lead from other sources, and it is suggested that all Ethyl rep resentatives in the field be on the alert for reports of such material and take steps to discover its source.

Sign e d : HE 0008764 Re po rted t *>-28-58 / V- y Results Analysis Number Lead Tetraethyl Remaining Organic Lead - 57A-8593 - ^0. 0001^ - 0. 023$ Th e co n ce n tratio n o f te tra e th yl le a d w ith in th is s a m p le o f Gun ite is n e glig ib le fro m the as p e ct of s afe ty, but is pro bably b a re ly s ign ifican t {enough to in dicate that s o m e s m a ll am o u n t h ad be e n ab s o rb e d ) in th e a n a lytic a l s e n s e .

Same base as 115-145 Grade with less lead.

Taylor c/o British-Amerlean Oil Company Edmonton, Alberta, Canada Dear Doctor Taylor: The analytical results on the samples of urine and blood taken from the men who had potential exposure to tetraethyl lead on or about October 12, are enclosed.

Scales and certain of his associates in the Research Laboratories of Ethyl Corporation in Detroit, in an effort to supply technical information pertinent to the nature and extent . of the potential hazard involved in the substitution of tetramethyl lead for tetraethyl lead in antiknock fluids.

-2- Spears & Riddle Company 3/21/27 You will recall that there were all sorts of dire predictions about sales resistence in connection with the putting of a notice on the pump that it con tained tetraethyl lead, but I do not believe anyone would say today that such notice has created any substantial resistence and if our picture of the future is correct as to the greaterimportanee to be attached -to Ethyl Gasoline, I think such notice and precautionary measures will have less significance from the standpoint of resistence to sales. .

Tetraethyl lead differs from most lead compounds in that it is readily absorbed through the skin.

Inasmuch is I have been responsible for the hygienic conditions in the most hazardous of all of the lead trades, namely, the manufacture of tetraethyl lead, I am well aware of the fact that sound methods of industrial hygiene and of engineering control can solve the problem in a wholly satisfactory manner.

3-85 BRONN k ROOT B.SMITHSOM 40 STRAIGHT RUN KEROSENE SHaL 830002/10-65 BRONN k ROOT B.SMITHSOM 41 SULFOLANE SHELL 5620 / 9-B5 BRONN k ROOT B.SMITHSON 42 SULFUR SHaL 8080 `''9-85 BRONN k ROOT B.SMITHSOM 43 SULFURIC ACID SHaL 6445 1-81 BRONN l ROOT B.SMITHSOM 44 TETRAETHYL LEAD 45 TOLUENE ETHYL.--.

Kehoe began by describing the background development of the tetraethyl lead industry from 1924.

r ETHYL NEWS INDEX-1957 AGRICULTURE Architects of Abundance (ASAE 50th anniversary) Plowmen on Parade (World plowing matches).....................

Tetraethyl lead differs from most lead compounds in that it is readily absorbed through the skin.