National Lead Co. -- National Lead Co.

The steel keg for white lead, which National Lead Co. pioneered, was a notable packaging development of 1909.

The new lead salts are Dythal, a dibasic lead phthalate, and Tri-Mai, a tribasic lead salt.

We should be able to deal with all the material you have indicated in a direct and forthright manner, xvithout any great controversy, with the exception of the part indicated as ''latent lead poisoning and sequellae lead poisoning."

Lead concentrations Dr .

Lead concentrations /< 0016*062 Dr...

From the amount of lead in the air (ranging from 0.3 to 2.3 mg. of lead per 10 cubic meters) and the amount of lead in the urine of C.

ITaturally it is understood that severe lead absorption may result in lead encephalopathy which, presumably indicates that lead can effect the central nervous system.

I am sure you are aware of the possibility of other difficulties than lead exposure, but since your request related to lead X shall confine myself thereto.

one up to the present have indicated that lead concentrations up to and including 6 c.c. tetraethyl lead per American gal!

International Lead Refining Company The refinery at East Chicago, Indiana, treated 7,974.68 tons of lead bullion from the Tooele Plant, and 3.268.31 tons of purchased ore and bullion, from which there were produced 20,683,128 pounds common lead, 914.875 pounds antimonial lead, 2,612,959.96 ounces silver, and 9,020.993 ounces gold.

9-IN ICA L SIGNIFICANCE OF HEMATOLOGIC CHANGES IN LEAD ABSORPTION AND LEAD POISONING WILLARD MACHLE, M.D.

Gleaning operations lead to liberation of vapour; from the "scale" or "bludge".^* The toxic effects following absorption of tetra-ethyl lead are due to the lead content and are, fundamentally, precisely the same as those of poisoning with inorganic lead compounds.

In the entire history of the use of leaded gasoline there has never been a case of lead poisoning among the tank wagon drivers, filling station attendants and garage mechanics who have some occasion to come in contact with leaded gasoline or its combus tion products.

Instead of .proving lead exposure, have merely proved that the samples analyzed were grossly contaminated with lead from external sources.