ENGINEERING WORKSHOPS, MACHINES AND PROCESSES. By F. Zur Nedden. Translated by John A. Davenport. With an Introduction by Sir A. B. W. Kennedy, LL.D., F.R.S., M.Inst.C.E., M.Inst.M.E. Plates. Demy 8vo. 6s. net.

A handbook of workshop practice for the young engineer. It fills a gap in our books for the practical training of engineers.

MACHINE DESIGN. By Charles H. Benjamin, Professor of Mechanical Engineering in the Case School of Applied Science. Numerous Diagrams and Tables. Demy 8vo. 8s. net.

Prepared primarily as a text-book, but containing mainly what the writer has found necessary in his own practice as an engineer. As far as possible the formulas for the strength and stiffness of machine details have been fortified by the results of experiments or by the practical experience of manufacturers.

THE INTERNAL COMBUSTION ENGINE: Being a Text-Book on Gas, Oil, and Petrol Engines, for the use of Students and Engineers. By H. E. Wimperis, M.A., Assoc.M. Inst.C.E., Assoc.M.Inst.E.E. Illustrated. Crown 8vo. 6s. net.

Contents:—Introductory. Section I.—Theory: Thermodynamic Cycles. Combustion and Explosion. Thermodynamics. Section II.—Gas Engines and Gas Producers: The Gas Engine. The Gas Producer. Blast Furnace and Coke-Oven Gases. Section III.—Oil and Petrol Engines: The Oil and Petrol Engine. Petrol Engine Efficiency and Rating. Index.

THE MODERN STEAM ENGINE: Theory, Design, Construction, Use. A Text-Book for Students. By John Richardson, M.Inst.C.E. With 300 Illustrations. Demy 8vo. 7s. 6d. net.

Contents: Unit of Power. Natural Forces. Early Types of Engine. The Watt Engine. The Use of Steam in Multiple Cylinder or Compound Engines. Valve Gears. Double or Compound Slide Valves. Releasing Valve Gear. Exhaust Valves and Valve Driving Gear. The Governor. Electrical Regulation. Condensers. The Steam Turbine. Design of Details. Examples of Various Types. Feed and Steam Heating. Hints to Users. Appendix. Tables and Formulæ. Index.

Engineer.—"Essentially a practical treatise."

THE CONSTRUCTION AND WORKING OF INTERNAL Combustion Engines. Being a Practical Manual for Gas Engine Designers, Repairs and Users. By R. E. Mathot. Translated by W. A. Tookey. Medium 8vo. With over 350 Illustrations. 24s. net.