READER SERVICE SECTION POWER HEWS. _ TECHNICAL BRIEFS PLANT EQUIPMENT NEWS NEW FREE BULLETINS ' HYDRO-QUEBEC, world's lorgosl hydraulic pipeline dredge, it cleoring the entire 3300-ft width of the 15-mile Beouhomois Canal In Quebec.

Justs, the importance of personal hygiene should not be overlooked.

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Air Hygiene Foundation of America, Inc., 4 *iGO Fifth Avo., Fitt sburgh, Fa., December 10, 1037 HtF&^gCES ID RECENT LITERATURE OH INDUSTRIAL DISEASES (A) Lews Items ~' ' - 589 MICHIGAN SY] JOSI". .

and providing a description of any printed material or trademarks that appeared thereon.

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GENEMAI 6.29.02*054599 ifELECTR MAIN OFFICE AND FACTORY CHICAGO 20ia JACKSON BOULEVARD X-RAY CORPORATION BRANCH OFFICES IN ALL PRINCIPAL CITIES CABLE AOORESS VI CTO R X RAY C HICAG O CHICAGO April 1, 1935 North.

American Society of Heating and Ventilating Engineers Guide, 1930 Instead of making the calculation just described, refer to Table 3, and note that, for a first-floor radiator, the capacity of a in. pipe is 9,500 B.t.u.

American Society of Heating and Ventilating Engineers Guide, 1930 (VOJf d+BfUdpuOJ t 418 F ig. 1.

American Society of Heating and Ventilating Engineers Guide, 1930 many materials produce better results if dried quickly at comparatively high temperatures than if dried more slowly at lower temperatures.

American Society of Heating and Ventilating Engineers Guide, 1930 Its solubility in water, like all gases, is dependent upon the temperature and partial pressure.

American Society of Heating and Ventilating Engineers Guide, 1930 Table 1.

Copyright, 1931 BY American Society of Heating and Ventilating Engineers AND BY IT Dedicated .

American Society of Heating and Ventilating Engineers Guide, 1931 air is 1.34, based on the values given in Table 1, and when increased by the factor 3 to allow for moving air, the outside surface coefficient is 3 X 1.34 or 4.02 B.t.u. per hour per square foot per degree fahrenheit difference between the surface and the air in contact with it.