THE POWDERED PRODUCTS CO.

50 1 Sayers 2 MR.

CONCEPT AND SIGNIFICANCE 23 the ratio is lower in clerical workers than in manual workers and is lower in those doing light, than in those doing heavy, manual work.

366 OCCUPATIONAL TUMORS AND ALLIED DISEASES Port, K., Deutsche Ztschr. f.

AUTOMOBILE ACCESSORIES CO., REDDING, CALIFORNIA IT'S OLD, IT'S NEW & IT'S CELEBRATING!

Page 1400 1 Preston Street garage, was there any one manufacturer 2 that had more vehicles than another?

1 included in that group of people he has studied.

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^AMERICAN SOCIETY OF HEATING & YENTILATIN6 ENGINEERS 6CTDE.1923 tically up to the curve; from the point of intersection with the curve tranverse to the vertical scale which will show that 2,000 cu. ft. of air per hr. per person is being supplied to the room.

AMERICAN SOCIETY OF HEATING & YEMUAI1N6 ENGINEERSGUEE1923 TABLE 75. ' PROPERTIES OF VARIOUS FOOD PRODUCTS Substance COMPO5ITION Water Solids Specific Heat Above Freezing in Heat Units Specific Heat Below Freezing in Heat Units Latent Heat of Freezing in Heat Units Water........ .

American Society of Heating and Ventilating Engineers Guide, 1924-25 by lining ordinary galvanized-iron pipe with 1 in. of a patented, porous insulating material that will not disintegrate in water and withstands a temperature of 500 deg. fahr. or more.

American ' Society of Heating and Ventilating Engineers Cuide, 1924-25 thumb and neck of the bottle and the net-covered bulb is filled with air by pressing the uncovered bulb with the hand; the thumb is then released and the inrushing air replaces the air originally in the bottle.

American Society of Heating and Ventilating Engineers Guide, 1924-25 be positive.