Lead Dust, Under a new subheading "Lead Dust," only three respirators are now listed.

Mdti&g. cutting, and welding of zinc, lead.

Services of Lyon &.Lyon - September 1958, in connection with lead oxide suit against Western Lead Products Company.

Lead Silicate Pigments.

LEAD INDUSTRIES ASSOCIATION------- ---- !

The same has been true of the molten sodium and lead systems.

Fleck Ethyl Corporation 100 Park Avenue New York City 17 Dear Van: In reply to ycur letter of April 16 on the subject of the possibility and desirability of Ethyl's consenting to an increase in the concentration of tetraethyl lead 'in motor gasoline above the present conventional level of J> cubic centimeters of tetraethyl lead per American gallon of gaso line, I have this to say. 1.

Tetraethyl Lead - T, B.

Under clause 24 they show that there is . possibility of lead poisoning.

Because lead is corroded to a considerable extent in most soils, lead coatings applied to steels are not adequate for underground use.

Fleck Ethyl Corporation 100 Park Avenue New York City 17 Dear Van: In reply to ycur letter of April 16 on the subject of the possibility and desirability of E t h y l 's consenting to an Increase in the concentration of tetraethyl lead `in motor gasoline above the present conventional level of 5 cubic centimeters of tetraethyl lead per American gallon of gaso line, I have this to say. 1.

Tar xtafU.u, 202 pair aluadnun conductor cable with etalpeth aheath would weigh a little ore thar 1/3 at web aa tha copper-lead cable.

Under clause 24 they show that there is i possibility of lead poisoning.

What le v e l o f lead per volume of a ir i s considered dangerous?

Work is under way to investigate the probable economy of lead silicate and monobasic lead sulphate without the sacrifice of any durability.