American Society of Heating and Ventilating Engineers Guide, 1928 It will be noted from the example cited that when the efficiency is based on the net or lower heat value, the appliance apparently absorbs 8.21 pier cent more of the heat supplied to it than when the efficiency is based on the gross heat value.

American Society of Heating and Ventilating Engineers Guide, 1928 TEMPERATURE AND HUMIDITY CONTROL Air washers require method of control of temperature to prevent freez ing by too low temperature and of over-humidification by too high temperatures of the air entering and leaving the washer.

Officers of Local Chapters 1927-2,8 Cleveland Headquarters, Cleveland Meets: Second Friday in Month President, J.

1929M1D-YAfi MIEI1M6 , iftz .

c 05 I 0 I 03 I 2 C i 1' REQUEST FOR ADMISSION HH: You were aware as early as 1920 2 of research, studies and/or articles indicating a causal connection 3 between asbestos exposure and 4 (a) asbestos is; 5 !

BUILDING SERVICE INDUSTRIAL SALES CO, INC.

Air Conditioning Unit Htators and Coolers D, J.

324 Heating System* BUn, BadiiMrt, Vihi Tvaia 'p44rnAam^'^rp<>rdiu^ '^SSST HEATING & COOLING DIVISION IRVINGTON, NEW YORK There's a Burnham for Every Purpose--Write for Descriptive Catalogs A.

260 Air System Equipment RmI Vfntilrttn WESTERN ENGINEERING & MFG.

330 Twenty-second Congress--National Safely Council . .

mL O 17I B E S T O S- H A H D BOO K.FOR.BR ARE SERVICE BASIC FUNDAMENTALS OF BRAKE SERVICE It'l!

i>o Th!

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.

TUMORS OF THE SKIN 157 ployed in the crude paraffin departments of Scottish Oils, Ltd.

158 OCCUPATIONAL TUMORS AND ALLIED DISEASES it is probable that this industrial neoplasm was prevalent among mule spin ners of this district long before the period covered by the investigations of Wilson.