INTERVIEW Dr.

PLAINTIFF'S EXHIBIT To tbs Executive 0519 On Jana 25*1929 tha Welfare Committee "authsriicd an appropriation of $5,000. par year for five years to tha Saranac Laboratory for tho purposo of enabling It in oooparation with this Company to eoatiaao bacteriological studies of silieosis."

Air Hygiene Foundation of America, Inc. 4400 Fifth.

Heating and Ventilating The Herman Nelson Corporation Main Office Moline, Illinois Sales Representatives in all Principal Cities The Univent Unit Heating & Ventilating Systems. j To the Engineer: Owing to the fact that each room is treated separately, Uni vents offer an extremely simple and satisfactory solution of the heating and ventilating problem.

Roll of Membership HA1RE.

American Society of Heating and Ventilating Engineers Guide, 1925-26 Fig. 62.

American Society of Heating and Ventilating Engineers Guide, 1926-27 In selecting burner sizes the total load imposed upon the boiler and thence upon the burner should be carefully determined.

of and 1926-27American Society Heating Ventilating Engineers Guide, industrial installations.

American ofSociety Heating and Ventilating Engineers Guide, 1926-27 and allowing return mains to be run overhead.

American Society of Heating and Ventilating Engineers Guide, 1928 tions next to unheated spaces, (4) ceilings of upper floors, either below a cold attic space or as the underside of a roof slab, and (5) floors of heated rooms above an unheated space.

American Society of Heating and Ventilating Engineers Guide, 1928 Hence, use the values 2.23, and 0.41 for the heat to be supplied in B.t.u. per hour, per foot of crack for an average wind velocity of 15 miles per hour for each of the two kinds of cracks respectively.

American Society of Seating and Ventilating Engineers Guide, 1928 The average carbon dioxide content of the 4 samples taken in the room is 5.7 or 1.7 parts more than the outside sample, which, according to the chart, is 99.5 per cent perfect for this factor and calls for 0.4 per cent penalization for imperfection of ventilation.

American Society of Heating and Ventilating Engineers Guide, 1929 adapted to use when it contains a large percentage of lumps or when it is uniformly sized, since the fine coal will cause a considerable loss by falling through the grates.

American Society of Heating and Ventilating Engineers Guide, 1929 Chapter IX--Fan Furnace Heating Direct transmission heaters for fan-furnace systems are to be had made of cast-iron or steel.

American Society o/yHEATiNG and Ventilating Engineers Guide, 1929 type of heater specified for any condition of steam pressure, air velocity through heater, entering air temperature and final air temperature desired.