J. Wiley & Sons, Inc., 1914. 3. ed., rev. and enl. 8°.

182 P.

diagr., maps, pl.

illus.

Third and enlarged edition of this standard work on stream measurement. Authors are engineers for the United States Geological Survey.

"Being practically the only work available dealing with its subject this volume will find a ready reception, and when future editions enable the authors to fill in the omissions and fill in the weak spots, it should be one of the most valuable works on practical hydraulics printed in the English language."—From a review of the first edition, in Engineering News, 1907.

Kunz, Frederic Charles. Design of steel bridges; theory and practice for the use of civil engineers and students. McGraw-Hill Book Co., Inc., 1915.

8°.

472 p.

New York: diagr., tables.

Emphasizes the practical side of the subject and is designed to meet the needs of engineers and advanced students who desire numerical examples and results of best modern practice in simple steel bridges and to serve as a guide in the calculation of stresses, sections, weights, etc. The fifty-two plates show a wealth of detail. Author is chief engineer of the bridge and construction department of the Pennsylvania Steel Co.

"The author has used freely in this book a great wealth of information that has been at his command. The information has been so arranged as to be easily accessible, and the book will appeal particularly to the practical engineer and the advanced student as a valuable reference work."-From a review in Journal of the Western Society of Engineers, Chicago, April 1915, p. 393.

Also reviewed in Engineering Record, New York, April 24, 1915, p. 531; in Engineering & Contracting, Chicago, April 28, 1915, p. 387; in Mining & Scientific Press, San Francisco, July 17, 1915, p. 110; in Canadian Engineer, Toronto, July 29, 1915, p. 213.

New plans.

Lauchli, Eugene. Tunneling; short and long tunnels of small and large section driven through hard and soft materials. York: McGraw-Hill Book Co., Inc., 1915. illus. 8°.

238 P.

"This book is particularly interesting to American readers because of its discussion of certain problems of tunneling which have been most studied in Europe. The importance of geological surveys in connection with tunnel driving, the determination of rock temperatures in deeply overlaid tunnels, and the pressure acting on tunnels driven through soft and cohesionless materials are subjects which have been carefully studied abroad, and each is given a special chapter by Mr. Lauchli. The chapters on long and deeply overlaid tunnels, tunnel timbering, lining deep tunnels, vitiation of air and ventilation during construction of long and deep tunnels are also records of European practice in large measure. The author in his subtitle includes short and long tunnels and his text substantially meets his title, but it is because the book is the most extensive treatise in English on long and deep tunnels that it holds interest. The author has had another advantage in his writing of being a practical tunnel builder with foreign and American experience. The era of long tunnels is, we believe, yet to come, but it is surely coming in America, and a concise record in book form of long and deep tunneling in Europe which is prominent in its experience with such work is an excellent service to the future American tunnel engineer." - From a review in Engineering and Contracting, April 28, 1915.

Also reviewed in Railway Age Gazette, New York, June 18, 1915, p. 1429; in Engineering Record, New York, May 15, 1915, p. 626; in Canadian Engineer, Toronto, June 24, 1915, p. 708.

*Moritz, Ernest Anthony. Working data for irrigation engineers. New York: J. Wiley & Sons, Inc., 1915. illus.

8°.

395 p.

Tables, diagrams, and specifications with a general consideration of the development of an irrigation project. Author is an engineer in the United States Reclamation Service.

"To practicing engineers who have to do much calculation in hydraulics the book should prove very useful, especially to those who are not expert in the use of the slide rule and to those who insist on the use of the Kutter's formula."-From a review in Engineering News, New York, June 17, 1915, p. 1171.

*Perkins, Lee. The railroad taper; the theory and application of a compound transition curve based upon thirty-foot chords. New York: J. Wiley & Sons, Inc., 1915. 12°.

356 p.

"As a self-contained pocketbook on the transition curve for steam railways this work deserves high rank, principally because of the unusual completeness of its tables, the simplicity of its underlying theory, and its practical applicability. The book will save much time in the field wherever this particular transition curve is in vogue." From a review in Engineering Record, New York, June 26, 1915, p. 812. Also reviewed in Railway Age Gazette, June 18, 1915, p 1429; in Canadian Engineer, Toronto, June 24, 1915, p. 707; in Mining & Scientific Press, San Francisco, July 17, 1915, p. 110.

*Raymond, William Galt. Railroad field manual for civil engineers. New York: J. Wiley & Sons, Inc., 1915. 386 p.

.12°.

Data and tables concerning railroad curves by the professor of civil engineering in the State University of Iowa.

"The author has in his preface largely confined his remarks to his suggested general adoption of the decimal division of degrees and of five-place tables. While the actual use of either is not new, yet a practical effort to make their use universal as good, or the best practice, is new, and the author is to be commended for his courage in coming to the front in a way tending to a practical realization of his hope for a general adoption of such features."-From a review by M. P. Paret, in the Engineering News. New York, July 15, 1915, p. 116.

Also reviewed in Mining & Scientific Press, San Francisco, May 29, 1915, p. 857; in Railway Age Gazette, New York, May 21, 1915, p. 1064; in Canadian Engineer, May 27, 1915, p. 609.

Swain, George Fillmore. Conservation of water by storage. New Haven: Yale University Press, 1915.

384 p.

illus.

A concise, attractive and well illustrated discussion from both the economic and engineering standpoints, with chapters on water power at government and private dams, forest and stream flow, floods and their prevention, and the government acts regarding water power. Has an excellent bibliography. For the general reader and the specialist.

"Professor Swain acted as chairman of the Water Power Committee of the Fourth Conservation Congress, a position to which he was chosen as an authority on this question of absorbing moment. His thorough investigations and the careful consideration which he has devoted to this subject have led him to conclusions which cannot fail to have weight even among those who hold opposite opinions... The remarkable illustrations, of which there are over ninety, form a very important feature of the book."-From a review in Water & Gas Review, New York, May, 1915, p. 19-20.

Also reviewed in National Electric Light Association Bulletin, May, 1915, p.

Electrical Engineering

Anderson, Frederick Irving. Electricity for the farm; light, heat and power by inexpensive methods from the water wheel or farm engine. New York: Macmillan Co., 1915. 12°.

265 P.

illus.

"The tiny unconsidered brook that waters the farm pasture frequently possesses power enough to supply the farmstead with clean, cool, safe light in place of the dangerous, inconvenient oil lamp; a small stream capable of developing from twenty-five to fifty horse power will supply a farmer (at practically no expense beyond the original cost of installation) not only with light, but with power for even the heavier farm operations, as threshing; and in addition will do the washing, ironing and cooking, and at the same time keep the house warm in the coldest weather."-From the preface. This attractive book tells how.

Reviewed in Electrical World, New York, July 24, 1915, p. 188.

*Avery, Alfred H. Dynamo and electric motor building.

London: Cassell and Co., Ltd. [1914.]

152 p.

"It is plainly the work of a man who has been through the mill and who has no commercial axe to grind. The instructions are good, as also the many photographic blocks and drawings; best of all the type is large and clear. It caters, not for the man who deals with heavy machinery, but for the increasing class which constructs smallish models. Thus, one chapter, the longest in the book, deals with the building of a 120-watt motor-dynamo converter; it is scarcely possible to imagine that any detail of the work has escaped description. Designs are also given of other small machines. The man who wants to construct dynamos in sizes up to 1 h. p. can hardly do better than submit to Mr. Avery's guidance."-From a review in the Electrician, London, March 5, 1915, p. 748.

Bullard, William Hannum Grubb. Naval electricians' text book, by Captain W. H. G. Bullard... Revised by Commander J. T. Tompkins... assisted by Lieut. Commander Amon Bronson ...and Professor L. A. Doggett... Annapolis, Md.: U. S.

Naval Institute, 1915. 2 v. 3. ed. 8°.

Two large volumes prepared for the use of midshipmen of the United States Naval Academy for instruction concerning electrical engineering so far as it relates to the subject of warship installation. Volume one, covering theory, has been thoroughly revised and new chapters and illustrations added. Volume two, dealing with practice, has been reprinted, with notes and corrections, and an appendix containing descriptions of some of the later applications of electricity to naval purposes. Has excellent chapters on radio telegraphy and telephony.

*Curtis, Arthur F. The law of electricity; including electrolysis, electrical injuries, powers, duties and regulation of electrical companies, eminent domain taxation, electrical contracts, municipal ownership, abutting owners, interference with currents, injuries to appliances, conduits, street railways, master and servant, and evidence. Covering the decisions of the United States, England and Canada. Albany, N. Y.: M. Bender & Co.,

1915.

1033 p. 8°.

A voluminous treatise by a member of the New York bar. Contains a wealth of case references. Reviewed in Electrical World, New York, July 24, 1915, p. 188.

Dwight, Herbert Bristol. Constant-voltage transmission; a discussion of the use of synchronous motors for eliminating variation in voltage in electric power systems. New York: J. Wiley & Sons, Inc., 1915. 115 p. illus. 12°.

"The book is written in clear and concise language. A noticeable feature of the work is that the author is not afraid to give explanations and definitions of technical terms which, while not exactly unfamiliar to the average reader, are still of uncommon enough occurrence to puzzle one at times. It will well repay one for the short time required to peruse the pages of this volume. Moreover the book will be found to be a valuable one for reference purposes."-Canadian Engineer, April 29, 1915.

Hausmann, Erich. Telegraph engineering; a manual for practicing telegraph engineers and engineering students. New York: D. Van Nostrand Co., 1915.

406 p.

illus.

8°.

A well illustrated text and reference book dealing theoretically and practically with representative types of apparatus in the different fields of wire and cable electrical communication. Author is assistant professor of physics and electrical engineering at the Brooklyn Polytechnic Institute.

"It may be said that, taken altogether, this volume is a real and valuable addition to telegraphic literature and worthy of possession by every telegraphic student and engineer... The illustrations are very clear and understandable, and while some higher mathematics are employed in the book, the simpler mathematics largely predominate."-From a review in Telegraph & Telephone Age, New York, April 16, 1915, p. 188.

Also reviewed in Electrical World, New York, June 19, 1915, p. 1616. *Köhn, Paul. Die elektrische Kraftübertragung, von Paul Köhn... Leipzig: B. G. Teubner, 1915.

illus.

121 p.

diagrs.,

12°. (Aus Natur und Geisteswelt... 424. Bd.) Concise, plainly written, and well illustrated compendium of theory and practice with practically no bothersome mathematics.

*Kroll, Moritz. Lehrbuch der Elektrotechnik für technische Mittelschulen und angehende Praktiker, von Moritz Kroll... Leipzig: F. Deuticke, 1914. illus. 2. ed., rev. 4°.

444 p.

"The emphasis of the book is on the descriptive side. In theory the authors are naturally restricted. The book is clear, easily comprehended, and adapted to instructional purposes. The illustrations are, on the whole, good... The book can be recommended."-From a review in Zeitschrift des Vereines Deutscher Ingenieure, Berlin, May 22, 1915.

Lowe, P. E. Drake's electrical dictionary; a compendium of words, terms and phrases used in the electrical trades and electrical enginering. Chicago: Fred. J. Drake & Co., Cop. 1915, 313

p.

tions.

16°.

Gives brief definitions of the words and phrases in common use. No illustra

Murdoch, W. H. F., and C. A. OSCHWALD. Electrical instruments in theory and practice. London: Whittaker & Co.,

1915. 366 p. tables. illus.

12°.

Discusses advanced theory of damping, moving coil and iron core instru

ments, the electrometer and voltmeter, hot wire and dynamometer instruments, and the post-office box. Has an excellent historical summary.

"Although a good deal of descriptive literature exists with regard to electrical instruments and their main principles of operation, books dealing with mathematical analysis of their actions are comparatively few, and it is with a view to fill this gap that the work under notice is presented. Naturally the matter is such as only appeals to the advanced student, but to him it is often important, and we have pleasure in commending the volume before us for its clear and succinct treatment. "The section dealing with supply meters is especially full and gives the results of a number of experiments as compared with theory which are particularly interesting, as the theory of the induction meter is complex and the explanations given sometimes erroneous."-From a review in the Mechanical Engineer, Manchester, 1915, v. 35, p. 316.

Also reviewed in Electrical World, New York, July 24, 1915, p. 188; in Electrician, London, Aug. 13, 1915, p. 705.

Peek, F. W., jr. Dielectric phenomena in high voltage engineering, by F. W. Peek, jr. New York: McGraw-Hill Book 8°.

Co., Inc., 1915. 265 p., illus.

"It is the object of the author to give in this book the properties of gaseous, liquid, and solid insulations, and methods of utilizing these properties to the best advantage in the problems of high voltage engineering. Such problems require a knowledge, not only of the laws and mechanism of breakdown of dielectrics as determined by experiment, but also a simple working knowledge of the dielectric circuit."-From the preface.

Reviewed in Electrical World, New York, Sept, 4, 1915, p. 453.

*Pritchard, O. G. The manufacture of electric arc carbons London: "The Electrician" Printing & Publishing Co., Ltd. [1915.] illus. 8°. (Electrician series.)

55 P.

This is a reprint of Pritchard's original work (1889), with a digest of Jehl's book (1900) which is claimed to be "still the only practicable book on the subject in any language." The appendix contains some notes and brief references concerning the flaming arc.

Richey, Albert Sutton. Electric railway handbook; a reference book of practice data, formulas, and tables for the use of operators, engineers, and students. By Albert S. Richey... assisted by William C. Greenough... Hill Book Co., Inc., 1915.

New York: McGrawillus. 12°.

832 p. Author is professor of electric railway engineering, Worcester Polytechnic

Institute.

"No attempt has been made to cover the entire field of electric railway engineering... Rather, it has been the aim to present data on the subjects which come up in everyday electric railway practice for constant use by the operating, constructing or designing engineer; a book which may be used by the non-technical manager or operator as well as by the engineer; and a convenient reference book on electric railway practice for those who may be specializing in other or allied lines." -From the preface.

"This is an admirable and valuable addition to engineering literature and was badly needed, as it is a long time since a real effort was made in this field to compile practice data, formulas and tables that would be of use to engineers, students, and particularly to the large group of men engaged in the operation of electric railways. It is now over 15 years since Mr. Philip Dawson, in England, made the first publication of this character in a book that remains a classic. Professor Richey's book is extremely up to date and is essentially American in nature, scope