Gas Engine Design. Charles Edward Lucke, Ph.D., Mechanical Engineering Department, Columbia University, New York City. Demy 8vo. 12/6 net.

Gas Engine Construction. By Henry V. A. Parsell, Jr., M.A.I.E.E., and Arthur J. Weed, M.E. 2nd Edn. Demy 8vo.

Gas, Gasoline, and Oil Engines. Gardner D. Hiscox, M.E., Author of “Mechanical Movements,” “Compressed Air,” etc. 22nd Edn, largely rewritten and brought up to date, by Victor W. Page, M.E. Demy 8vo. 18/- net.

A complete practical work defining the elements of internal combustion, engineering, treating exhaustively on the design, construction and practical application of all forms of gas, gasoline, kerosene and crude petroleum oil engines, describing auxiliary systems, the theory and management of explosive motors for stationary and marine work, automobiles, aeroplanes and motor cycles, also producer gas and its production.

British Progress in Gas Works Plant and Machinery. C. E. Brackenbury, C.E., Author of “Modern Methods of Saving Labour in Gas Works.” Super-Royal 8vo. 6/- net.

Steam Engines, Boilers, etc.

Governors and the Governing of Prime Movers. Trinks. 22/6 net.

A Manual of the High-Speed Steam Engine. H. Keay Pratt, A.M.I.Mech.E. Demy 8vo. 6/- net.

Contents.—I. History and General Remarks. II. Steam Cylinders and Adjuncts. III. Valves. IV. Pistons. V. Connecting-rods, Piston-rods, Crank-shafts, etc. VI. Baseplates, Flywheels, etc. VII. Governors. VIII. Cast-iron and other Details. IX. Indicator-Cards and Effort Diagrams. X. Testing. XI. Foundations, Pipe Connections, etc. XII. Practical Notes on the Working of High-Speed Engines. XIII. A Description of Various Engines. Index.