The Steam Injector
A theoretical and practical treatise on the design and operation of injectors and on the flow of fluids through and the design of nozzles.

9 THE THETA = PHI DIAGRAM. Practically Applied to Steam, Gas, Oil and Air Engines. By Henry A. Golding, Assoc. M. Inst. M.E. 3s. net, post free 3s. 4d. net, abroad 3s. 6d. net. 25. ‘ 1 The most exhaustive and complete treatment upon the subject of entropy that we have seen.”— Machinery. “ The vvork evidently supplies a void, as hitherto the information it gives was scattered about in the “Proceedings” of technical societies. . . . The work is well timed, and should prove useful to a large circle of readers.”—Engineer’s •Gazette. “There can be no question of the importance to designers of steam engines of a caieful study of the Theta-Phi Diagram, and it must be conceded thatMr. Golding provides a work which renders this knowledge readily accessible.”—Britisk Tråde ■J ournal. MODERN POWER GAS PRODUCER PRACT1CE AND APPLICATIONS. By Horace Allen. Price 6s. net, post free 6s. 6d. net, abroad 6s. 9d. net. 26. Should be of great practical value to those who are installing producer plant.” —Page’s Weekly. “Will be a useful addition to an engineer’s library.”—Times. “The book should be heartily welcomed by every one interested in the subject.’ —Power. “It is a useful and up-to-date treatise on a subject of growing importance.”— Meehanical World. EXPERIMENTS ON THE PRESSURE AND EXPLOS1VE EFFICIENCY OF MIXTURES OF ACETYLENE AND AIR. By Frederick Grover, A.M. Inst. C E., M.I. Mech. E., Author of “ Modern Gas Engines ” &c. Price Is., post free ls. Id. net, abroad ls. 3d. net. B 19. PRINCIPLES OF FITTING. By J. G. Horner. Price 5s. net, post free 5é. 3d. net, abroad 5s. 6d. net. B 52. TURNING LATHES. A Manual for Technical Schools and Apprentices. A Guide to Turning, Screw-cutting, Metal Spin- ning, &c. &c. With 194 Illustrations. By J. Lukin, B.A. Demy 8vo. Cloth, price 3s. net, post free 3s. 4d. net, abroad 3s. 6d. net. B 46. THE RESISTANCE AND POWER OF STEAMSHIPS. By W. H. Atherton, M.Sc., and A. L. Mellanby, M.Sc. Piice 5s. net, post free 5s. 4d. net, abroad 5s. 6d. net. 27. “ The book will appeal to marine engineers and shipbuilders, and, in faet, to all who are interested in watching the development of steamships.”—Scientific American. “ The book merits a place as a standard aid to the marine engineer and ship- builder.”—The Steamship. “ One of the admirable series of text-books published by the Technical Publish- ingCo., Ltd. . . . The authors are to be congratulated.”—British Trade Journal. MARINE ENGINEERS : THEIR QUALIFICATIONS AND DUTIES. With Notes on the Care and Management of Marine Engines, Boilers, Machinery, &c. By E. Constantine, Assoc. M. Inst. C.E., M.I. Mech. E. Second Edition. Crown 8vo. Cloth, price 5s. net, post free 5s. 4d. net, abroad 5s. 6d. net. 28. “ It is a masterly book of instruction, and the author can be congratulated upon having produced a really useful and serviceable manual.”—Western Mail. “We record with pleasure the advent of the second edition of this both useful and interesting book.”—The Model Engineer. “ We recommend this book to all who desire to beconie sea-going engineers.”— The Steamship.