^ MATERIAL: TERRITORY: METROX LITHARGE and RED LEAD.

was due chiefly to zinc fumes; however, lead fumes might have been ' ^ present. ' A- ,

Joseph Lead Co. .

AND F I ND HIM F I T AND SU I T ABL E TO BE EMPL O Y ED IN BLEN DI N G LEADED GASOLI NE.

They represent the minimum requirements for the avoidance of lead exposure.

Joseph Lead Company Standard Abrasive Abrasive Standard Line & Stone Company Sterling Grinding Wheel Company The Sun Rubber Company Texas Gulf Sulphur Commdary Titan Abrasives Company Toledo Edison Company Company Toledo Scale Company Company Trentou Potteries Company State Zine & Lead Ore Producers Association -- & Union Asbestos Rubber Company Company Union Carbide & Carbon Corporation United States Potters Association United States Smelting Refining & Mining Company United States Steel Corporation of Del Universal Sanitary Manufacturing Co.

I have rested under the impression that most Of the expenses in connection with the Betts Process operations, in cluding carrying charges of the White Lead Plant, would be charged against the bismuth operations.

Kehoe$ I regret this delay in thanking you for your letter of October 11th with your careful review of the lead article by Hamlin and Weber.

Baritaa Lead - Lbs.

The sample contained 0.03 parts of lead per million but the water was unpotable on account of its high iron content, 6 parts per million.

.-- - V ; permissible concentration should be lead, 0.15; mercury, 0.1; zinc, 15.0.

The h igh u r in ar y l ead co n cen t r at i o n t en d s t o su b st an t i at e t h e si g n i f i c a n c e o f t h i s el evat ed lead con cen t r at i o n i n t h e b l o o d .

Kehoe: Enclosed are two copies of a proposed agreement be tween the University of Cincinnati and Du Pont relating to in vestigations of hygienic problems in connection with tetra ethyl lead.

Approximately 50% of the tanks cleaned had contained leaded gasoline at some time.

Canadian Leaded 2ino lg26 KT.