Air Hygiene Foundation of America, Inc. 4400 Fifth.

Site Face to face., ........ ....................................................... 1 Center to facet

VENTILATING ENGINEERS 6BIDE823 amorphous state, cooling in the usual summer weather, absorbs water just like any other material; given enough time, the clear, hard, compact mass forms a solid solution with the absorbed water, and the sugar slowly but surely crystalizes out as it was before the cooking.

I Ji -*S**W Index to Modern Equipment American Society of Heating and ventilating Engineers Guide 1924-25 AIR COCKS (.See Cocks, Air) AIR CONDITIONING American Blower Co.

American Society of Heating and Ventilating Engineers Guide, 1925-26 Date.

American Society of Heating and Ventilating Engineers Guide, 1925-26 b Portable.

American Society of Heating and Ventilating Engineers Guide, 1925-26 Class D--85 per cent equipment.

American Society of Heating and Ventilating Engineers Guide, 1926-27 motor drives were installed on machines.

.American Society of Heating and Ventilating Engineers Guide, 1926-27 furnace when the fan is shut down.

American Society of Heating and Ventilating Engineers Guide, 1928 From which we have in which ^ = Awx|^ + Pdj X 3 K A 8 = Area of steam piston in square inches.

American Society of Heating and Ventilating Engineers Guide, 1929 Fig. 9.

American Society of Heating and Ventilating Engineers Guide, 1929 STATIONARY GRATES Stationary grates are installed on bearing bars, and not movable except as they are lifted out of the furnace for repair or replacement.

American Society of Heating and Ventilating Engineers Guide, 1929 senting the given temperature difference: thence vertically to the line representing the conductivity of the given material; thence horizontally, Chapter XV--Heat Insulation for Pipes and Surfaces weather-proof the insulation and to provide a drainage system for the water which may get into the conduit.

American Society of Heating and Ventilating Engineers Guide~19j^ Chapter 14--Automatic Control ture at the air conditioner outlet.

L.J.WingMfg.Co.