BOOKBINDING. A Practical Treatise on the Art. By J. W. Zaehnsdorf. With 8 coloured Plates and numerous diagrams. Second Edition, Revised. 5s.

"No more competent writer upon his art could have been found. ... An excellent example of a technical text-book." - Industries.

"To professional as well as amateur binders it may confidently be recommended."- Paper and Printing Trades Journal.

"Its phraseology is simple, straightforward and clear, its arrangement systematic, and its completeness apparently without a flaw." - Guardian.

PLUMBING. Its Theory and Practice. By S. Stevens Hellyer. With numerous illustrations. {Immediately.

SILK-FINISHING. By G. H. Hurst, F.C.S. {In the press.

"THE SPECIALISTS' SERIES."

A New Series of Handbooks for Students and Practical Engineers. Crown 8vo, cloth. With many Illustrations.

ELECTRIC TRANSMISSION OF ENERGY, and its

Transformation, Subdivision, and Distribution. A Practical Handbook by Gisbert Kapp, C.E., Member of the Council of the Institution of Electrical Engineers, etc. With numerous Illustrations. Third Edition, thoroughly revised and enlarged. 7s. 6d.

"We have looked at this book more from the commercial than the scientific point of view, because the future of electrical transmission of energy depends upon the enterprise of commercial men and not so much upon men of science. The latter have carried their work to a point, as is admirably shown by Mr. Kapp in his work, where the former should take held." - Engineer.

"The book is one of the most interesting and valuable that has appeared for some time." - Saturday Reznezv.

" We cannot speak too highly of this admirable book, and we trust future editions will follow in rapid succession." - Electrical Review.

HYDRAULIC MOTORS: Turbines and Pressure Engines. For the use of Engineers, Manufacturers, and Students. By G. R. Bodmer, A.M. Inst. C.E. With numerous Illustrations. 14s.

"A distinct acquisition to our technical literature." - Engineering.

" The best text-book we have seen on a little-known subject." - The Marine Engineer.

"Mr. Bodmer's work forms a very complete and clear treatise on the subject of hydraulic motors other than ordinary water-wheels, and is fully up to date." - Industries.

"A contribution of standard value to the library of the hydraulic engineer."- Athenceum.

THE TELEPHONE. By W. H. Preece, F.RS, and J. Maier, Ph.D. With 290 Illustrations, Appendix, Tables, and full Index. \2s. 6d.

Mr. Rothen, Director of the Swiss Telegraphs, the greatest authority on Telephones on the Continent, writes:-"Your book is the most complete work on the subject which has as yet appeared; it is, and will be for a long time to come, the book of reference for the profession."

' Messrs. Preece and Maier's book is the most comprehensive of the kind, and it is certain to take its place as the standard work on the subject." - Electrical Review.

ON THE CONVERSION OF HEAT INTO WORK.

A Practical Handbook on Heat-Engines. By William Anderson, M. Inst. C. E. With 61 Illustrations. Second Edition, revised and enlarged. 6s.

"We have no hesitation in saying there are young engineers - and a good many old engineers too - who can read this book, not only with profit, but pleasure; and this is more than can be said of most works on heat." - The Engineer.

"The volume bristles from beginning to end with practical examples culled from every department of technology. In these days of rapid bo<>k-making it is quite refreshing to read through a work like this, having originality of treatment stamped on every page." - Electrical Review.

ALTERNATING CURRENTS OF ELECTRICITY.

By Thomas H. Blakesley, M.A., M. Inst. C.E. Second Edition, enlarged. 4s. 6d.

"It is written with great clearness and compactness of statement, and well maintains the character of the series of books with which it is now associated." - Electrician.

"A valuable contribution to the literature of alternating currents." - Electrical Engineer.

BALLOONING: A Concise Sketch of its History and Principles. From the best sources, Continental and English. By G. May. With Illustrations. 2s. 6d.

Mr. May gives a clear idea of all the experiments and improvements in aero-navigation from its beginning, and the various useful purposes to which it has been applied." - Contemporary Review.

SEWAGE TREATMENT, PURIFICATION, AND UTILIZATION. A Practical Manual for the Use of Corporations, Local Boards, Medical Officers of Health, Inspectors of Nuisances, Chemists, Manufacturers, Riparian Owners, Engineers, and Ratepayers. By J. W. Slater, F.E.S., Editor of "Journal of Science." With Illustrations. 6s.

"The writer in addition to a calm and dispassionate view of the situation, gives two chapters on 'Legislation' and 'sewage Patents.'" - Spectator.

A TREATISE ON MANURES; or, the Philosophy of Manuring. A Practical Handbook for the Agriculturist, Manufacturer, and Student. By A. B. Griffiths, Ph.D., F.R.S. (Edin.), F. C.S. 7s. 6d.

"We gladly welcome its appearance as supplying a want long felt in agricultural literature, and recommend every farmer and agricultural student to possess himself with a copy without delay." - Farm and Home.

COLOUR IN WOVEN DESIGN. By Professor Roberts

Beaumont, of the Textile Industries Department, The Yorkshire College. With 32 Coloured Plates and numerous Illustrations. 21s.

"An excellent work on the application of colour to woven design." - Textile Manufacturer.

"The illustrations are the finest of the kind we have yet come across, and the publishers are to be congratulated on the general excellence of the work." - Textile Mercury.

Works in Preparation -

LIGHTNING CONDUCTORS AND LIGHTNING

GUARDS. By Professor Oliver J. Lodge, D.Sc, F.R.S., M.Inst. C.E. With numerous Illustrations. [In the press.

THE DYNAMO. By C. C. Hawkins, A.M.I.C.E., and

J. Wallis. [Preparing.

CABLES AND CABLE LAYING. By Stuart A. Russell, A.M. Inst. C.E. [Preparing.

THE ALKALI-MAKERS' HANDBOOK By Professor Dr. George Lunge and Dr. Ferdinand Hurter. Second Edition, revised, and in great part rewritten. [In the press.

ARC AND GLOW LAMPS. New and Revised Edition.

[Preparing.

THE DRAINAGE OF HABITABLE HOUSES. By

W. Lee Beardmore, A.M. Inst. C.E., Hon. Sec. to the Civil and Mechanical Engineers' Society.

LONDON: GEORGE BELL & SONS, 4, YORK STREET,

COVENT GARDEN, and WHITTAKER & CO., Paternoster Square.

CATALOGUE OF BONN's LIBRARIES.

740 Volumes; £158 14s.

The Publishers are now issuing the Libraries in a NEW AND MORE ATTRACTIVE STYLE OF BINDING. The original bindings endeared to many book-lovers by association will still be kept in stock, but henceforth all orders will be executed in the New binding, unless the contrary is expressly stated.

New Volumes of Standard Works in the various branches of Literature are constantly being added to this Series, which is already unsurpassed in respect to the number, variety, and cheapness of the Works contained in it. The Publishers beg to announce the following Volumes as recently issued or now in preparation: -

Goethe's Faust. Part I. The Original Text, with Hayward's Translation and Notes, carefully revised, with an Introduction and Bibliography, by C A. Buch-heim, Ph.D., Professor of German Language and Literature at King's College, London. {Immediately.

Arthur Young's Tour in Ireland. Edited by A. W. Hutton, Librarian,

National Liberal Club." 2 vols. [Preparing.

Euripides. A New Literal Translation in Prose. y E. P. Coleridge. 2 vols. 5s. each.

Vol. I. - Rhesus - Medea - Hippolytus - Alcestis - Heraclidae - Supplices - Troades - Ion - Helena. II. - Andromache - Electra - Bacchae - Hecuba - Hercules Furens - Phcenissae - Orestes - Iphigenia in Tauris - Iphigenia in Aulis - Cyclops. [See p. 15.

Voltaire's Tales. Translated by R. B. Boswell. Vol. I. 3s. 6d. [See p. 8. Count Grammont's Memoirs of the Court of Charles II. With the

Boscobel Tracts, etc. New Edition. 5s. [See p. 9.

Gray's Letters. New Edition. Edited by the Rev. D. C. Tovey, M.A.

[In the press.

Schools and Masters of Fence. By C. Egerton Castle. New Edition. With numerous Illustrations. [In the press.

Montaigne's Essays. Cotton's Translation, revised by W. C. Hazlitt. New Edition. 3 Vols. [In the press.

Hartley Coleridge's Essays and Marginalia. Edited by the Lord Chief

Justice. [.Preparing.

Hoffmann's Works. Translated by Lieut.-Colonel Ewing. Vol. II.

[In the press.

Bonn's Handbooks of Games. New enlarged edition. In 2 vols.

Seep. 21. Vol. I. - Table Games, by Major-General Drayson, R.A., R. F. Green, and 'Berkeley.' II. - Card Games, by Dr. W. Pole, F.R.S., R. F. Green, 'Berkeley, and Baxter-Wray.

Bonn's Handbooks of Athletic Sports. 8 Vols. [See p. 21.

For BOHNS SELECT LIBRARY, step. 23.

March, 1892.