Frontmatter -- PREFACE -- List of Contributors and Revisers for Volume IV -- TABLE OF CONTENTS -- I. Gases and Oils -- Fundamental Chemical Notions -- Fuels -- Illuminating Gas and Oil-Gas -- Producer-Gas -- Industrial Waste Gases -- Purification of Gas -- Moving of the Gases -- Gas Examination -- Motor Oils -- II. Theory of Internal Combustion Engines -- General Theory -- Working Cycles -- III. Materials and their Manipulation -- Materials -- Manufacture -- IV. Construction of Internal Combustion Engines -- Engine Bed and Frame -- Cylinder -- Piston -- Driving Gear, Moving Parts -- Theory of Driving Gear -- Valve Gear -- Governing of Four Stroke Cycle Engines -- Distribution and Governing of Two Stroke Cycle Engines -- Details of Oil Engines -- V. Equipment of Internal Combustion Engines -- Centrifugal Governor -- Lubrication -- Ignition -- Starting Gear -- VI. Erection -- Foundation of the Engines -- Piping, Tubing -- VII. Complete Plants -- Stationary Plants -- Portable Engine Plants -- VIII. Working and Testing -- Working -- Testing -- IX. Economics -- Supply and Cost -- Employer and Employee -- Alphabetical Index giving the Page and Column in which each Word is to be found -- a) German, English, French, Italian and Spanish in one alphabet -- b) Russian