It is known that some substances in our environment, for example, 2-naphthylamine and tetraethyl lead are converted to carcinogenic compounds.

LEAD INDUSTRIES ASSOCIATION, In c . 292 MADISON AVENUE NEW YORK.

Our Committee also recognized'the desirability of rotation of directors representing foreign lead producers but decided to refer this to your committee for reconsideration

Bulletin, "Occupational Lead Exposure and Lead Poisoning".

(Lusaka, Northern Rhodesia): LEAD POISONING IN SMALL ANIMALS.

Ule ^a^cu'o-C^ LEAD INDUSTRIES ASSOCIATION, INC.

New York, New York 'CLARK, Kenneth, Professor Department of Electrical Engineering Polytechnic Institute of Brooklyn Brooklyn, New York CONVERY, Sam National Lead Company .

As you gather, he has a real cause on the subject cf the contamination of natural water ways with lead. he thinks with some reason that with modern methods, using radioactive isotopes for the measurement of very small quantities in materials of some of the earlier figures of lead in water are open to debate.

Secretary National Lead Company 111 Broadway Hew York, New York 10006 Re: Stein Paint Company Dear John: I reached Kenny Specht at his home Thursday night and he told me that Stein was entirely agreeable to give up the 5$ In connection with sales to the new customer according to the local National Lead salesman in Miami.

Bulletin on "Occupation al Lead Exposure and Lead Poisoning", my first thought is that it should be brought up to date and republished, but I would first want to discuss the matter with a few of my colleagues in this area.

* > National Lead Co.

Our whole staff in the analytical section are required in preparing for the start-up of the lead smelter and nobody could be spared for a trip to the United States.

Whit* Lead 35X I.

Lead is indeed a normal, i.e., physiological, constituent of vegetation, as we have demonstrated; it also occurs in and on vegetation in abnormal quantities under appropriate conditions.

Plans are practically complete for me to attend the Symposium on Lead at Kettering Laboratory on February 25 through 27, 1963.