N O WYNKOOP, Publisher PHILIP W SWAIN, Editor E J TANGERMAN, Consulting Editor FA ANNETT, S A TUCKER, L N ROWLEY, Associate Editors E W FELLER, G A KEATES, Asst Editors PAUL WOOTON, Washington, H $ KNOWLTON, Boston ftYmBER, 1942 86 * NUMBER 9 JAMES H McGRAW. founder and Honorary Chairman James H McGraw.

GA^000'20 COPY PLAINTIFF'S EXHIBIT G-285____ INDUSTRIAL hygiene FOUNDATION of AMERICA.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 heavy traffic hours and under atmospheric conditions favorable to con centration, the air of congested streets is found to contain enough CO to menace the health of those exposed over a period of several hours, par ticularly if their activities call for deep and rapid breathing.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 A complete study of all of the factors involved in air movement through building constructions would be very complex.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1940 Velocities through registers may be reduced by the use of registers larger than the connecting pipes.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1940 temperature of 83 F would be cold.

HEATING VENTILATING AIR CONDITIONING ^GUIDE 1940 insulation to a point slightly higher than the dew-point for the corre sponding air temperature and relative humidity.

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 more nearly equivalent to the boundary surfaces of an internal air space than they are to the external surfaces of a wall.

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 quantities are increased from a minimum, if the outdoor temperature as sensed by Tt is low enough to provide cooling; and finally chilled water valve Vt opens.

HEATINC VENTILATINC AIR CONDITIONING CUIDE 1941 the non-heating, season with the operation of the fuel burning device controlled by the water heater thermostat.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 Table 1.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 methods to domestic heating boilers of small size, especially when frequent attendance is impractical.

HEATING VENTILATINC AIR CONDITIONING GUIDE 1942 As much as 350 gal of oil per hour can be burned in these units, and frequently they are arranged in multiple on the boiler face, from two to five burners to each boiler.

HEATING VENTILATINC AIR CONDITIONING CUIDE 1942 CoRBENT Table 1.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 EASTWOOD, E.