318 CHAPTER 13 1954 Guide tef LETTER SYMBOLS USED IN CHAPTER 13 = fraction of incident solar radiation absorbed, dimensionless; subscripts D, d, andt refer to direct, diffuse and total, respectively.

344 CHAPTER 14 1954 Guide ture obtained due to surrounding conditions.

388 CHAPTER 16 1954 Guide are considered consistent with good practice, although there are boilers; which have high efficiencies and also operate at higher 'transmission, rates.

488 CHAPTER 21 1954 Guide; Each heating unit in a vapor system, as in all two-pipe systems, is pro vided with a graduated or modulating valve which permits the control of heat in the radiator by varying the opening of the valve.

492*tJA CHAPTER 21 1954 Guide tated as much, as possible, as an air bound system will not heat readily nor properly.

570 CHAPTER 24 1954 Guide 3r deteriorate, the age allowance on the pipe will probably be a sufficient allowance for the anti-freeze.

582 CHAPTER 25 1954 Guide Fig. 7..

904 CHAPTER 40 1954 Guide not greater than 100 deg from the vertical, cannot enter the machine either directly or by striking ana running along the surface.

958 CHAPTER 43 1954 Guide of brines.

978 CHAPTER 45 1954 Guide Table 1.

1080 CHAPTER 49 1954 Guide washing tank capacity in gallons, giving the gallons of 180 F water per day necessary to fill the tanks. 5.

1162 1954 Guide!

112 CHAPTER 6 1955 Guide upon a number of factors, including the dietary and hygienic habits of the occupants (frequently reflecting their socio-economic status), the outdoor air supply, air space allowed per person, odor adsorbing capacity of air conditioning processes, and temperature and relative humidity.

546 CHAPTER 22 1955 Guide vessel, is utilized to produce the required pressure.

974 CHAPTER 43 1955 GjjlBJlLrrosion and Water Formed Deposits, Causes and Prevention 975 it- ii Table 4.