Hft deceased, are making claim against the Orange State Oil Company and contending that death was occasioned by exposure to tetraethyl lead fumes .earning a gasoline storage tank From our investigation, of this matter is appears that died on December 23, 193S, The report of Dr Robert Eehoe, of Bering laboratories in Cincinnati, Ohio, together with the other in forelation we have been able to develop causes us to conclude that this man's death was due to exposure to tetraethyl lead through the negligence of the Ethyl Gasoline Corporation.

The leaded gasoline story must also be read as a call to action, for the lead menace lives.

Except in acute fatal tetraethyl lead poisoning, which is quite by itself and differs greatly from fatal inorganic lead poisoning, there are few data.

(2) those associated with exposure to exhaust gases containing finely divided lead, on the part of pilots, passengers and the general public* It seems quite clear to me that we need not concern ourselves with the question suggested under the second heading since the opportunities for exposure to insufficiently diluted exhaust gases in confined or unventilated areas will bo insignificant in the case of aeroplanes as compared to those which have been afforded by automobiles without evidence of human lead accumulation, therefore there remains only the question of exposure to gasoline containing concentrations of tetraethyl lead up to 1 part in 84Q of gasoline# It is apparent that the vapors rising from tanks or open containers will show slightly Increasing amounts of lead, with increasing concentrations of lead In the gasoline* The vaporised lead in the atmosphere as the result of spillage will also be grantor for a given amount of gasoline, with every increase In the concentration of lead In the gaaol'ne* However, the amount of lead which will bo present In vapors above tanks are too small to b8 ~a Dr* R* H* layers of practical Importane, at the specified concentrations.

You are probably aware that historically Switzerland has been very cautious in permitting the a3s of tetraethyl lead and continued to demonstrate reluctance to do so long after the use of tetraethyl lead was widespread in other countries.

TetraMethyl Lead does not appear to be any more toxic than Tetraethyl Lead which is currently being used, in gasoline in Japan. 2.

Townsend* Thanks very much for your letter of February 26, with the question raised concerning the addition of tetraethyl lead to gasoline to be used in commercial aircraft.

We have heard that the American Ethyl Corporation are marketing an improved anti knock additive which is a mixture of tetraethyl lead and methyl cyclopentadienyl manganese tricarbonyl.

Townsend: " Thanks very much for your letter of February 26, with the question raised concerning the addition of tetraethyl lead to gasoline to be used in commercial aircraft, in concentrations not to exceed 4.6 e.c.~ per American gallon.

rig finely divided lead, on the part of pilots, passengers and the general public* It seems quite clear to me that we need not concern ourselves with the question suggested under the second heading since the opportunities for exposure to Insufficiently diluted exhaust gases in confined or unvenbllated areas will bo Insignificant in the case of aeroplanes as compared to those which have been afforded by automobiles without evidence of human lead accumulation, therefore there remains only the question of exposure to gasoline containing concentrations of tetraethyl lead up to 1 part In 84G of gasoline* It Is apparent that the vapors rising from tanks or open containers will show slightly Increasing amounts of lead, with increasing concentrations of lead in the gasoline.

Of the compounds now employed in industry, tetraethyl lead is the only one that- poses a real problem in that regard

Here a sufficient concentration of lead in the brain, in association with a history of exposure to tetraethyl lead, comes very near indeed to proof of fatal tetraethyl lead poisoning, in the hands of a well informed person.

Inform them that we are participating with the Public Health Service in the recommendation of the Ad Hoc Camittee that: "The Public Health Service, in. collaboration with the manufacturers of tetraethyl lead, the petroleum industry, and other appropriate organizations, conduct studies to provide more definitive data on levels and trends of atmospheric lead contamination in selected urban areas and of the body burden of lead, in selected population groups.

Inform them that we are participating with the Public Health Service in the recommendation of the Ad Hoc Camittee that: "The Public Health Service, in. collaboration with the manufacturers of tetraethyl lead, the petroleum industry, and other appropriate organizations, conduct studies to provide more definitive data on levels and trends of atmospheric lead contamination in selected urban areas and of the body burden of lead, in selected population groups.

'tetraethyl lead, on the other hand, really is absorbed rapidly, as are also some other ?