office,', if.your own investigations -`lead you to conclude (that the statements mad e 'in .this report are v: erroneous, I';earnestly.

National Lead Company McCloskey Varnish Co.

(Bethesda Station) September l6 , 19^6 Dr* Robert A, Kehoe K ettering Laboratory of Applied Physiology University of Cincinnati C incinnati 19 , Ohio Dear Dr* KehoeJ As you a re a c tin g as summarizer and p rin c ip a l d isc u sse r of the papers presen ted a t the Conference on Lead Poisoning in Boston on September 30, 1 9 ^ .

Ab an example of what I mean, this same question arose in Italy some years ago* X attempted to forestall it by advising the people who were undertaking the manufacture of tetraethyl lead.

Furthermore, the extremely acute course of the Illness was of such a sort that lead poisoning could have been responsible for it only on the assumption that a rather large dose of lead had been absorbed very recently.

Furthermore, the extremely acute course of the Illness was of such a sort that lead poisoning could have been responsible for it only on the assumption that a rather large dose of lead had been absorbed very recently.

Suffice it to say, however, that it has been known for more than twenty years that there is no change in the urine Coproporphyrin in response to the absorption of tetraethyl lead, even in fatal poisoning.

In th e p re lim in a ry work o f m anufacture o f le a d t e t r a e t h y l sev era l very serious cases of lead poisoning have re s ta te d .

Ifeble In- tMs if The original role of lead poisoning In the etiology of the tuberculous process'in this case Is a matter of pure- conjecture.

$ feat above a trass furnace take tha poisonous gat away fraa th* furnace tender?

One example of this is the problem of childhood lead poisoning -- eating of old leaded paint in less advantaged areas of New York City.

Aub, Effect of the Parathyroid Hormone on the Excretion of Lead and of Calcium,.in Patients Suffering from Lead Poisoning.

Aub, Effect of the Parathyroid Hormone on the Excretion of Lead and of Calcium,. in Patients Suffering from Lead Poisoning.

that there .is any material difference in th chemical reactions in th fuel between airfeaBsobils motors and air* . plane motors# 3* Tetraethyl lead is oxtreasly easily oxidised and 1 do not believe that there is ary possibility 'that tufinawd tetraethyl lead con cons Q\xb of th cylinders* 4* Th experimental dotemina^iaa of the quantity of lead in exhaust gasss ds^xiremely difficult sine* at leeust* a part of .the load Is thon^very finely divided solid state which permits it to pass through most scrubbing systems An. electrical precipitator of th Cottrell type would probably be most effective 1 am sending you under separate cover, a report of the Bureau of Hines in which some work m s dans on '11118 problem and also a report of the British Investigating Committee in which th problem is discussed Th concensus of opinion appears to bo that if exhaust gas is diluted to the point Tiber poisoning from carbon monoxide does not occur, the lead concen tration is well below th limit believed to produe* any physiological effects HE 0015539 Cap* 1 Bergquist 7-eily Field* Texas - 2- Juaa 7, 1933 The problem; of the relation of tetraethyl lead to the publto health question has "been esmauatSrrely studied "by Dr E* A* Eehoe of the College of l.!

Some of the literature concerning lead and lead poisoning.