In the matter of your statement as regards tetra ethyl lead poisoning, my objection was not that reference was made to tetraethyl lead which produces a type of poisoning In large doses more serious perhaps than any other lead compound* The misleading portion of the statement consisted of the fact that reference was made to the seriousness of the poisoning asso ciated with anti-knock gasoline containing tetraethyl lead, Y/hereas all of the evidence indicates that lead poisoning from this;1 type of distribution of tetraethyl lead is non-existent.

This is equivalent in lead content to gasolines containing 3 milliliters of tetraethyl lead per gallon. 2.

In retrospect tbs metallic lead retirements for tetraethyl lead in 151,0 mcro approximately 50 thousand tons, vhilo in 1550 this demand was sooo 120 thousand tons* Hadtod quoow.

In retrospect tbs metallic lead retirements for tetraethyl lead in 151,0 mcro approximately 50 thousand tons, vhilo in 1550 this demand was sooo 120 thousand tons* Hadtod quoow.

We believe we can make the compound using tetraethyl-lead as an ethylating agent.

We believe we can make the compound using tetraethyl-lead as an ethylating agent.

Tetraethyl lead is introduced into gasoline in amounts so small that the solution lacks the essential toxicalogical properties of tetraethyl lead.

Webb: In further inference to our conversation concerning the use of tetraethyl lead in gasoline other than that now marked as ethyl gasoline, it is my understanding that it i3 the intention of your company to permit the use of tetraethyl lead In gasoline other than that so marked, in amount not to exceed 1 1/2 cc. per gallon,' that all such gasoline will have a distinctive color; and that the pumps from which such gasoline is sold will be marked with a label similar to that now used on pumps for ethyl gasoline - that is, a label with black letters on a white background, the letter to be of the same size as now used but the wording to be as follows: FOB USE AS A MOTOR FUEL ONLY CONTAINS LEAD (tetraethyl) The Service can see no objection to the above proposal, provided the recommended precautions In regard to ethyl gasoline are used (as given in Public Health Bulletin No. 162* J'The Use of Tetraethyl Lead Gasoline In its Relation to Public Health", copy enclosed) covering the mixing and marketing of ethyl gasoline.

Webb: In further inference to our conversation concerning the use of tetraethyl lead in gasoline other than that now marked as ethyl gasoline, it is my understanding that it i3 the intention of your company to permit the use of tetraethyl lead In gasoline other than that so marked, in amount not to exceed 1 1/2 cc. per gallon,' that all such gasoline will have a distinctive color; and that the pumps from which such gasoline is sold will be marked with a label similar to that now used on pumps for ethyl gasoline - that is, a label with black letters on a white background, the letter to be of the same size a 3 now used but the wording to be as follows: FOB USE AS A MOTOR FUEL ONLY CONTAINS LEAD (tetraethyl) The Service can see no objection to the above proposal, provided the recommended precautions in regard to ethyl gasoline are used (as given in Public Health Bulletin No. 162* J'The Use of Tetraethyl Lead Gasoline in its Relation to Public Heal t h ", copy enclosed) covering the mixing and marketing of ethyl gasoline.

Hazards Associated with Manufacture of Tetraethyl Lead and Ethyl Gasoline.

Tetraethyl lead is now manufactured only by B.

Prepared by tetraethyl lead industry.

The lead content of the fluid was found to be 8.43$ which would corres pond to a tetraethyl lead content of 13.11%.

The lead content of the fluid was found to be 8.4-3/5 which would corres pond to a tetraethyl lead content of 13.11%.

Hematologic changes are never seen in tetraethyl lead poisoning, and the compound which stabilizes lead in high concentration in the erythrocyte, when inorganic lead is absorbed, is not formed or docs not enter the erythrocyte when the source of lead absorp tion is tetraethyl lead.