These are effected by the sharp advances in Linseed Oil, White Lead and other essential raw materials.

The area of the branch air ducts leading to boilers should be such that the velocity will not be more than two-thirds of that in the main ducts.

Steam enters (see cut) the lower chamber, ris ing through 5^-in. pipes located within the 1^-in. pipes leading from the upper chamber.

Methods of Determining Dor Sonic dusts (as lead) are determined hv chemical methods and the concentra tions in air are recorded gravimetrically as milligrams per cotie meter.

Would a protective mask approved for lead dusts fiber out sine .vide?

MaJa In Our Coait Factory at l-nt Ansel** acne WHITE LEAD AMD COLOR WORKS.

that, lead charmed ie American tain "Frank ~T WaTRTns of ~TFfe "to live upr - ter its--admittedly xaieers__ _ . _ bland, Ken Monteiey Navy School and Mrs i superior ideals When "they loser and- trouble: .war workGdj-Walkms,_CQL -C.

Long-term medical studies of A occupationally exposed workers show that low to moderate levels of exposure to asbestos do not lead to an increased rate of dis ease.

A NATIONAL ISSUE By the late 1930s most of the nation's leading newsmagazines such as Time and Newsweek were running articles about the Hawk's Nest Incident.

The extreme ease of starting and operating a gas burning appliance leads to the pilot light being lighted on the first cool day of the season.

&r 114.13^ 0007-SWP-000017444 RECONCILIATION OP CHICAGO TOUTS rep SITE GENERAL BOOKS APRIL 1925 General Books Bslsaee Less items net used bp Shite Lead Credits 452822 2.90 452874 452881 452924 452944 481.29 143.02 895.46 1,311.28 452945 452946 452956 1,353.79 S:3 A 4005 4o6o 4176 4273 25.00 22.06 57.70 -Ss21 Debits 4,376.5< 452874 *212i2 Less debit used by IT L and not G.

They put out this material to compete with white lead; but it cannot compete with white lead without at the same time competing with liquid paint.

There are today in this country two lead ing types of stuccos--Portland cement stuccos and Oriental Stucco.

Oio'-agm fication refers to the uptake of trace PCBs by plants and t: n y organisms which see eaten by small fish or other animals v h ,, ch inturn are eaten by higher forms of animal life leading to i `i: rea*ing PCB content in each step of the sequence.

It is not reasonable to require elaborate precautions against substances such as ethyl acetate or cobalt, oxide, the toxicity of which is slight,, while men are being incapacitated by exposure to substances like lead, silica, benzol.