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.

7 THE FAN : INCLUDING THE THEORY AND PRACTICE OF CENTRIFUGAL AND AXIAL FANS. By Charles H. Innes, M.A., Lecturer on Engineering at Rutherford College. Newcastle-on-Tyne, author of “ Centrifugal Pumps, Turbines, and Water Motors,” and “ Problems in Machine Design.” Crown 8vo. Cloth, price 4s. net, post free 4s. 6d. net, abroad 4s. 9d. net. 17. “This book is one of a series of admirable text-books issued by the same publishers.”—Mining Journal. “This book constitutes another valuable addition to the admirable series of text-books on applied science.”—British Trade Journal. “The book probably contains all that can be usefully said of the fan, and is therefore to be warmly commended to all interested in the design and construstion of such apparatus as from under the title adopted.”—Mechanical World. “ This work is a complete mathematical treatment of the subject.... and is one of the best Works on this particular subject we have yet reviewed.”— Power. “To the mining engineer and to others well versed in mathematics this book will appeal with a special interest.”—Ir on and Coal Trades Review. VENTILATION AND DUST REMOVAL IN THE CARD AND GASSING ROOMS OF COTTON MILLS. By Marks and Clerk. Over 60 illustrations. Gives a clear insightinto the latest systems adopted. Crown 8vo. Cloth, price 2s. 6d. net, post free 2s. 9d. net, abroad 3s. net. B 49. “Anyonewho is directly interested in the subject will find the book a handy one.”—Textile Recorder. MACHINE DRAWING AND SKETCHING FOR BEQIN= NERS. By J. H. Robson, Lecturer on Engineering at the L.C.C. School of Engineering and Navigation. Illustrated by 350 illustrations, mostly plates. Nearly 200 pages. Specially adapted for class work and students generally. A book of exceptional value. Large 8vo. Cloth, price 2s. 6d. net, post free 3s. net, abroad 3s. 3d. net. 18. THE APPLICATION OF GRAPHIC METHODS TO THE DESIGN OF STRUCTURES. Profusely illustrated. A Treat- ment by Graphic Methods of the Forces and Principles necessary for eonsideration in the Design of Engineering Structures, Roofs, Bridges, Trusses. Framed Structures, Walls, Dams, Chimneys. and Masonry Structures. By W. W. F. Pullen, Wh.Sc., A.M. Inst. C.E., M.I. Mech. E. Seconcl Edition. Crown 8vo. Cloth, price 5s. net, post free 5s. 6d. net, abroad 5s. 9d. net. 19. ‘‘ Engineers generally will find this work of much value.”—Steamship. ‘ 1 It has established its reputation as a handbook of value for engineers. ”— Daily Telegraph. “Written by an expert . . . for experts, this manual should prove of much usefulness to all classes of engineers.”—The Scotsman. “ The faet that a second edition of this work has been called for is evidence of its inereasing popularity. . . . As a work exelusively devoted to graphic statics, this treatise is the best of its class. . Our advice is, get it.”— Canadian Engineer.