I have been the medical and hygienic advisor of the industries concerned with the manufacture of tetraethyl lead in this country and also in England since this material was put into use.

On this background ve can consider the facts vith reference to the field army stove vithout a filter* Assuming that the gasoline contains 4 ml. of lead tetraethyl per gallon T4.24 gm. of Pb) and that the stove operates vith a normal stream of air, the effluent stream from the burner (unfiltered) vill contain about 101 mg.

Every chemist is aware that tetraethyl lead is added to gasoline.

City and State health authorities and labor leaders, who are in a position to know if the use of tetraethyl lead, which is now universally known to be very dangerous in its undiluted form, had caused any known serious results when diluted `jt* in gasoline in their respective jurisdictions, gave absolutely negative evidence as to any such harmfulness.

On this background ve can consider the facts vith reference to the field army stove vithout a filter* Assuming that the gasoline contains 4 .ml. of lead tetraethyl per gallon T4.24 gm. of Pb) and that the stove operates vith a normal stream of air, the effluent stream from the burner (unfiltered) vill contain about 101 mg.

Tetraethyl......................

We have a copy of a book published by them, dated 1930 on lead poisoning.

Under these circumstances, the diagnosis of tetraethyl lead poisoning is wholly untenable, and the occurrence of classical poisoning from the absorption of inorganic lead compounds is highly improbable.

Sew York, concerning the probable non-availability cl gasoline free of tetraethyl lead, in certain areas supplied iron the 'United S t a t e s .

The fourth paragraph makes _the categorical statement that lead poisoning from anti-knock gasoline containing tetraethyl lead is one of the most serious forms, I and my associates, as well as certain members of the staff of the Unit ed States Public Health Service, have been studying this problem from the point of view of the public health and the health of gasoline handlers in the United States over some period of years, Every at tempt has been made to dtermine notoonly whether poisoning has resulted fJfoi this cause, but also whether there is any evidence that men so engaged are absorbing appreciable quahtities of lead.

Under these circumstances, the diagnosis of tetraethyl lead poisoning is wholly untenable, and the occurrence of classical poisoning from the absorption of inorganic lead compotmds is highly improbable.

In fact, absorption of lead compounds through the skin, with the exception of a few organic liquid lead compounds, like tetraethyl lead, does not occur to any important or practical degree.

That lead poisoning should]'till!

us you are probably veil aware, " M s Laboratory in <be 'University of Cincinnati, has been carrying on. extensive-.investigations on the general problem of the lead exposure tc..the''lAmericar. community :as well as the occupational lead exposure existent, in American industries in general e have also, of: course, under cue financial sponsors-hip of .Ethyl Corporation, carried on rather extensive general investigations and industrial hygiene services, in connection with the problem, of leaded gasoline, including the hazards of the nanufacture of tetraethyl lead, the hazards of its mixture with gasoline, and the potential hazards associated with any aspect of 'this industry in this country and abroad.

If only wise and wellinformed people conduct the gasoline business and the tetraethyl lead business, we. shall be all right, in all likelihood, but what is the situation otherwise of an unregulated business?