OF ENGINEERING A Treatise on BOILERS, STEAM ENGINES, THE LOCOMO MOBILE MOTORS, REFRIGERA TION, ETC. By CALVIN F. SWINGLE, M. E. EDITOR-IN-CHIEF And a Corps of ENGINEERS AND MECHANICAL AND ELECTRICAI SEVEN VOLUMES Containing Thirty-five Hundred Pages and Fifteen INTERNATIONAL SCHOOL OF ENGINEERING 350 WABASH AVE., CHICAGO |