Every effort is made to lead ventilation ducts so that they do not pass through such structures.

ed--She-and-her-francerf3ahform Basketball Star Gordon Cunen are -Phoenix-,--Ar-iz and Johnny , -who--had- Bulla: a--first and-the-tl the Break getting married-next May or June Cal Pack and Milton Cleaners round 68 lead Commercial League bowlers for 141 but ' took 73 yesterday * Pacific s bang in in the third week of play.

And Moynihan said that "EPA never leveled with us about the differences of opinion" that lead to the 18-month delay in releasing the report Moynihan said that "we had to blast the material out of EPA, and they never offered any explanation for the delay."

Lead dust.______ :_____ _ Quartz dust____________ 480 250 73 370 1500-3000 200-400 15-20 IX 25 X XMo X-i 5-7 11 4-6 X M 1-1X 240 140 200-400 20-40 -- 10 X 3 . 2-3 5 1-2 X 31-47 31-47 1-1X Hoo 40 50 70 10 ----- i Xi Mo Mlo . 1X-S Ho Moo 1 2 Mo 5-10 2 0.15 mg/cu m 1 mg/cu m .Adapted from Y.

One part per million causes respiratory discomfort in man, headaches and depression, lowers the metabolism, and may even lead to coma6.

It is impossible to install a water gage glass on an inverted bucket trap, but if visual inspection is necessary, a gage glass can be placed on the line leading to the trap.

It does not lead to disability or infection. (5) In estimating the possible effects of any given industrial substance, it is necessary to know its chemical nature. (6) It now appears that certain silicates which were once considered as inert may become noxious when subjected to high temperatures. (7) Certain metals when subjected to high temperatures, liberate their oxides which may produce chemical pneumo nitis. (8) An industrial environment per se does not induce tuberculosis. -- Author's summary 289 Pathogenesis of Industrial Pulmonary Disease.

Toxic Dust Type Respirators are approved for protection against inhalation of toxic or piosonous dusts, such as lead, cadmium, arsenic, chromium, manganese, selenium, vanadium and their compounds.

Supply Mains {Steam): The pipes through which the steam flows from the boiler or source of supply to the run-outs and risers leading to the heating units.

These considerations in conjunction with those of barometric pressure and the difference in density of flue gases from that of air lead to the following formula: Dt = 2.96 HB0 (1) where H -- height of chimney, feet.

Produced under various trade names by leading Steel compan ies, these high strength steels 1.

A comparison between the perfor mance of two designs, unless based on such tests on each, may lead to entirely erroneous conclusions.

Joseph Lead Company; Chairman, F o u n d a t i o n 's B oa rd of T r u s te e s JOHN F.

Gardner opens with this statement Experiments still in progress at the Saranac Laboratory lead to the tentative conclusion that there can be little no injury to the lungs from exposure to glass wool dust because the material is not inhalable The complete report follows 01 501 0853

One part per million causes respiratory discomfort in man, headaches and depression, lowers the metabolism, and may even lead to coma5.