656 CHAPTER 31 1951 Guide Air Duct Design 657 CU FT OF AIR PER MINUTE CU FT OF AIR PER MINUTE Fig. 1.

954 CHAPTER 46 1951 Guide Fiber saturation point is the moisture content of cellular materials (wood, etc.) at which the cell walls are completely saturated while the cavities are liquid-free.

1014 CHAPTER 48 1951 Guide tively steaming part of a boiler, the heat transfer may be twice as great as would be obtained if the water surrounding the coil were circulating slowly.

238 CHAPTER 11 I^ 1952 Guide Table 1.

326 CHAPTER 13 1952 Guide l door, and by leaks in the setting, whereas the gases leave only through the outlet.

384 CHAPTER IS 1952 Guide 2.

538 CHAPTER 22 1952 Guide amount of heat required to maintain the common equivalent temperature is of the order of 7 percent.

564 CHAPTER 24 ^ 1952 Guide vefit is-not required if the main is-above the heater in. which case.air can be eliminated through the piping system

680 CHAPTER 31 1952 Guide Fig. 7.

1G76 1952 Guide Williams Oil-O-Matic Div., Eureka Williams Oil-O-Matic Div., Eureka BURNERS, Gas (See Oas Burner) Williams Corp., 1393 Williams Corp., 1393 BURNERS, Oil (See OH Bumetr) BOILERS, Magazine Feed BOILERS, Unit Steam Gener Farrar A Trefts, Inc., 1359 ator CALKING, Building Spencer Heater, Lycoming-Spencer Cleaver-Brooks Co., 1353 Philip Carey Mfg.

166 CHAPTER 8 1953 Guide H .*' . 15 The Volumetric Incidence of Atmospheric Allergens', by 0.

246 CHAPTER 12 '1953 Guide effective temperature for sedentary persons, as determined at the A.S.H.V.E.

334 CHAPTER 14 1953 Guide soiled'filter paper.

480 CHAPTER 21 1953 Guide nee in the water level, at the.far end of the return, due to the difference in steam pressure, would be 1 of 28 in. (28 in. head being equal to one pound per sauare inch), or 3J in.

664 CHAPTER 31 1953 Guide Vt = velocity of primary air.