Heat Engines Steam, Gas, Steam Turbines and Their Auxiliaries John R. Allen 1941 McGraw Hill vintage hardback Christoph von Schmid they come upon Pellucidar no editions or printings they come upon Pellucidar a savage Scuffed spot upper left corner front board Radiating Power Of Bodies ): Heat Elementary Thermodynamics Properties Of Steam Calorimeters And Mechanical Mixtures Combustion And Fuels Boilers Boiler Auxiliaries Steam Engines Types And Details Of Steam Engines Testing Of Steam Engines Valve Gears Governors Compound Engines Condensers And Air Pumps Steam Turbines Gas Engines Details Of Gas Engine Construction Economy Of Heat Engines Comprehensive Index