476 CHAPTER 25 1946 Guide such pans; when the radiator is steam hot and the relative humidity in the room, is between 25 and 40 per cent.

536 CHAPTER 29 1946 Guide Fig. 7 is a typical example of an orifice-type meter installation.

844 CHAPTER 46 1946 Guide ' damper for purpose of inspection, cleaning, or for renewal of fusible link.

872-CHAPTER 48'1946 Guide Sometimes an auxiliary generator driven by the air conditioning engine is used and serves to help charge the bus battery, thereby offsetting the power drain imposed by the ventilating blower. .

904 CHAPTER 51 1946 Guide ` Table 2.

72 Heating' Ventilating /4ii; Conditioning- Guide. 1946 "SCHARMER, George A.

8 CHAPTER 1 1948 Guide defined as carbon or soot particles less than 0.1 micron in size which result from the incomplete combustion of carbonaceous materials such as coal, oil, tar, and tobacco.

J78_ CHAPTER 10 1948 Guide substantial number of physicians, bacteriologists,' aerobiologists, physi cists, public health workers, engineers and hospital personnel.-' Some data are available on the types and quantities of bacteria found in a variety of occupied and unoccupied spaces, but it is not possible at present to use-this information as a conclusive index of the potential health hazard of a given environment.'

376 CHAPTER 19 1948, Guide.

768 CHAPTER 41 1948 Guide tt = temperature of air leaving duct, Fahrenheit degrees.

878 CHAPTER 50 1948 Guide Fig. 8.

212 - '.

' /- V'- ' .

126 CHAPTER 6 1949.

Heating Systems Specialties The V.