Document 3NpVyexXxLdOgR6bzdbNzwQrO

^WjWh*1' -!' vU-^l ywkz' Heating Ventilating Air Conditioning GUIDE 1943 A orn Instrument Service prepared for the Profession--Containing a Technical Data Section OF REFERENCE MATERIAL ON THE DESIGN AND SPECIFICATION OF HEATING, VENTILATING AND AIR CONDITIONING SYSTEMS BASED ON--THE TRANS C ACTIONS--the Investigations of the Research Laboratory and o operating Institutions--and the Practice of the Members and Friends of the Society TOGETHER WITH A Manufacturers' Catalog Data Section Containing Essential and Reliable Information concerning Modern Equipment also j&L The Roll of Membership of the Society WITH Complete Indexes to Technical and Catalog Data Sections Vol. 21 $5.00 per Copy '.(vV^ith thumb index io.50? Published Annually by American Society of Heating and Ventilating Engineers *t 51 Madison Avenue New York, N. Y. X929912