478__________________________________ CHAPTER 25 1946 Gi4 required to maintain the common air temperature at the 30-in. level is of the order of 13 per cent.

604 CHAPTER 33 1948 Guide emanating from, animals and people, some of the gaseous constituents of combustion, alcohols, ketones, esters, and , gaseous products of .putre faction.

s'jcjsct JOS MO.

KAISEFl ENGINEERS INTEROFFICE MEMORANDUM TO P.

898 : - 1- ' CHAPTER Sir:. : - ?.

9.12 : , 1948 Cm'dg CIRCUMFERENCES AND AREAS OF CIRCLES Diameter IN Inches Area Sq In.

' Air System Equipment Air Filters and Cleaners Air Devices, Inc.

Air System Equipment Motors The Louis Allis Co.

68' Heating Ventilating Air.

CODE OF ETHICS FOR ENGINEERS |V NGINEERING work has become an increasingly impor^ tant factor in the progress of civilization and in the wel fare of the community.

372 CHAPTER 17 .1949 .Guide * Gas Floor Furnaces, Gravity Circulating Type (U.

726,.

Air System Equipment Hendrick Manufacturing Company 48 Dundaff Street, Carbondale, Pal Sales offices in principal cities--consult telephone directories Hendrick Bulators; Hendrick Perforated Metal Grilles; Hendrick Mitco Open Steel Flooring, Armorgrids, Shur-Site Treads HENDRICK BULATOR* Hendrick Bulator* is a practicable com bination of an ornamental grille and a deflecting vane grille.

Heating Systems &5SS53JSSSS Crane Co.

344 CHAPTER 14 1950 Guide adapted to flat flames, or to conical flames that can be spread over the floor of the combustion chamber.