But at the same tins* newer uses have helped i to ccnpeneate for this* For Instance, ateetle fiction requires lead shielding to protect humans against dai^croue r*y, although at yut this can not ba reckoned aa a major nee of lead* Also (lass television tubes contain as tuch as 30 per cent lead In the fom of lead oxide.

But at the same tins* newer uses have helped i to ccnpeneate for this* For Instance, ateetle fiction requires lead shielding to protect humans against dai^croue r*y, although at yut this can not ba reckoned aa a major nee of lead* Also (lass television tubes contain as tuch as 30 per cent lead In the fom of lead oxide.

That Mine nore tetraethyl lead.

lead-containing substances.

CO., WIDENER BUILDING, PHILADELPHIA Sheet Lead and Lead Pipe PRODUCTS Antimonial SheetLead Chemical Slieet Lead Crawlproof (Reinforced) Sheet Lead Tellurium `Sheet Lead Antimonial Lead Pipe Chemical Lead Pipe Tellurium Lead Pipe '' Other products of National Lead.

Evans Lead Co.

Lead presses which automatically sheath the wires in lead made this method obsolete shortly before 1900.

The architects chose lead.

Leaded window with ornamental lead frieze and lead dashing on Mr.

Hard lead

All National Lead Co.

All National Lead Co.

lead oakum calked cast iron pipe joints.

(33) Summary of Mean Values of Lead Found in Samples of Faeces, of Lead in Milli grams per Gram of Ash in Faeces, and of Lead in Milligrams per Liter of Urine, for Identical Subjects Examined in 1927 and 1929.

Total lead liberated to atmosphere about 200 lbs. per day in 1950.