and products; Pigments; Fertilizers; Illuminating gas; Coal tar and its distillation products; The petroleum industry; The destructive distillation of wood; Oils, fats and waxes; Lubricating oils; Soap, soap powder, and glycerine; Essential oils; Resins, oleo-resins, gum resins, gums; Varnish; Sugar; Starch, glucose, dextrin and gluten; Beer, wine and liquor; Textiles; Dyestuffs and their application; The paper industry; Explosives; Leather.

"The purpose...is to meet the needs of those teachers...who find that the time at their disposal does not warrant the employment of an extended treatise The endeavor has been, in arranging this condensation, to treat the subjects covered in a general manner only, thus eliminating as much of the detail as possible in order that the fundamental principles might be more clearly set forth." Preface.

Reviewed in India rubber world, Jan. 1917; Textile world journal, Dec. 16, 1916; Gas age, Dec. 15, 1916.

A practical book covering a wide range of details for the production and application of stains, fillers, shellacs, varnishes, and waxes. Gives attention to fast-to-light anilines, and strives to develop "a better understanding of the artisan in the production of chemical solutions which make use of the natural color-giving constituents ever present in wood." There are helpful suggestions for the construction of the finishing room, the equipment of the laboratory, the preparation of the wood, and the making of the fuming box. Many formulae are included.

13. Toch, Maximilian.

366 p.

The chemistry and technology of paints... New York: D. Van Nostrand Co., 1916. illus. 2. ed. rev. 8°.

VOP

Second edition of this standard work is double the size of the first (1907), important additions having been made regarding specifications, new special paints and driers, the theory of corrosion of iron and steel and its prevention, the action of fungi on paints, the hygiene of workmen, detailed methods of analyzing paints and paint materials, with tables and constants of such materials.

"This volume is intended for the student in chemistry who desires to familiarize himself with paint, or the engineer who desires a better knowledge of the subject, or for the paint manufacturer and paint chemist as a work of reference. It is not intended for those who have no previous knowledge or training in the subject."-Preface to first edition.

Reviewed in Paint, oil, and drug review, Nov. 22, 1916; Engineering news, Jan. 18, 1917.

8°.

14. Waggaman, W. H., and J. A. CULLEN. The recovery of potash from alunite. Washington: 1916. 14 P. (United States Department of Agriculture, Bulletin no. 415.)

VPZ

Extensive deposits of alunite, a hydrous sulphate of potash and alumina, have been discovered near Marysville, in southwestern Utah. This government pamphlet tells briefly about several methods of potash recovery and gives the results of experiments to determine the best conditions under which a complete extraction could be made from impure as well as from the purer grades of Marysville alunite, with due regard to the production of a salable by-product.

15. Westcott, Henry Palmer, 1878-. Handbook of casinghead gas. Erie, Pa.: Metric Metal Works [cop. 1916]. ix, 274 p.

12°.

VHY

"Casinghead gas is the gas that flows from oil wells, coming out between the casing and the tubing.' By either compression or absorption it is changed into gasoline. Before 1903 this gas went largely to waste; since that date its utilization has developed until in 1915 approximately eight million dollars worth of gasoline was produced. This treatise goes thoroughly into the technology of the subject, giving also data for the construction of pipe lines and for the shipping of the product. There are many tables and a number of instructive illustrations.

Reviewed in: Gas age, Oct. 16, 1916; Compressed air magazine, Nov., 1916,

p. 8187.

Civil Engineering

16. Dilworth, Edward Coe.

Steel railway bridges, designs New York: D. Van Nostrand Co., 1916. diagr., tables. ob. 4°.

and weights...

185 p.

viii, *VEK

A working supplement to modern text-books on bridge design. Basing computations on the specifications (1912) of the American Railway Engineering Association and on Cooper's standard loadings E40, E50, and E. 60, weight curves have been plotted for all types of railway bridges, excluding arch, cantilever, and suspension. The weight curve of each E50 type is illustrated by several complete designs, giving the stresses and structural details, as well as most of the necessary assumptions and practical computations. Attractively printed on heavy plate paper 91⁄2 x 121⁄2 inches. There are 66 pages of text, 108 pages of detailed drawings, and 11 pages of tables.

"All the designs, computations and drawings were made especially for this volume, and to the best of the author's knowledge this is the first time an attempt has been made to design a full set of all kinds of ordinary railway bridges, such as plate girders, trusses, swing bridges, viaducts, and turntables for a certain specification and live load."-Preface.

Reviewed in Railway age gazette, Jan. 19, 1917.

17. Droege, John A.

Passenger terminals and New York: McGraw-Hill Book Company, Inc., 1916. illus. 8°.

trains... 410 p. TPCM

A companion volume to the author's Freight terminals and trains. Treats of general principles and design, as well as the operation of the various departments. There are chapters on water front terminals, the passenger_terminals of New York City, terminal agreements, car cleaning, small stations, passenger trains and terminals of foreign countries, time tables and train schedules, accidents, the commissary, and statistics. Well illustrated with over 200 diagrams and photographs. Author is general superintendent of the New York, New Haven, and Hartford Railroad.

"Written by a man of long experience in railway service, this book is of distinct and practical value to the engineer, the architect, the operating official and the student of railway affairs and problems. The engineer finds grouped here matters relating to the general layout and design of terminals. The architect will find numerous points of importance in regard to interior plan and facilities of the buildings, points which none but a 'railway man' would think of or suggest. For the operating official there is a wealth of information on

matters important in general and in detail. A notable feature of the book is the interesting and readable style in which it is written.”—Engineering news, Dec. 21, 1916.

Also reviewed in Railway age gazette, Dec. 15, 1916; Canadian engineer, Dec.

28, 1916.

18. Folwell, Amory Prescott.

Municipal engineering practice... New York: J. Wiley & Sons, Inc., 1916. xi, 422 p. illus. 8°.

VDH

As editor of the Municipal journal, also as a teacher, the author has profited by unusual opportunities to gain practical information concerning this subject or rather subjects. He excludes, however, consideration of sewerage, water supply and street paving, about which there are already excellent text-books; and confines himself to less treated topics such as street cleaning, public comfort stations; street lights, signs, and numbers; street sprinkling, city wastes disposal, markets, baths, parks, cemeteries, and shade trees. There are also chapters on city planning, bridges, and city surveying. Should prove of exceptional interest, not only to the engineer, but to the progressive citizen as well. 19. Gillette, Halbert Powers, 1869-. Handbook of rock exNew York: Clark Book Co., Inc., 1916. xvii, 835 p.

cavation. 12°.

Desk - Tech. Div.

Stated to contain most of the author's standard work, Rock excavation, methods and cost, published twelve years ago, with additions which practically double the book's size. Cost data are expressed in the form of unit costs, and methods are described with great detail. Particularly complete are the chapters on drills and drilling, including core drilling, and on blasting.

"The copious cost data are perhaps the most valuable single feature of the work, and accompanying these are descriptions of methods of excavating and transporting rocks under difficult conditions which give the reader the necessary particulars to enable him to analyze and interpret the figures."— Compressed air magazine, Dec., 1916.

Also reviewed in Mining and engineering world, Dec. 9, 1916; Railway age gazette, Nov. 10, 1916; Mining magazine, Feb., 1917; Compressed air magazine, Dec., 1916.

20. Holt, Andrew H. A manual of field astronomy... York: J. Wiley & Sons, Inc., 1917. x, 128 p.

New

illus. 16°.

VDE

Aims to fill a want for a text-book "sufficiently concise to fit the short time usually allowed for the work in a civil engineering course which would still provide enough of the fundamentals of the subject to enable the reader to make, intelligently, the observations and accompanying computations required in the practice of general engineering and surveying.'

Reviewed in Engineering record, Feb. 17, 1917.

21. Prince, George Thomas. Tabulated data with explanatory notes relating to flow of water, under pressure, through closed pipes... New York: D. Van Nostrand Co., 1916. v, 149 p. 16°. A pocket book based upon the formulae of Kutter, D'Arcy, Lampe, Fanning, and the exponential formula Hr = my1.73. Gives the mean velocity in feet per second, cubic feet per second, U. S. gallons per minute, million

VDM

gallons in 24 hours, and the coefficient c of the Chezy formula, for varying falls and for pipes ranging in diameter from 4 inches to 120 inches.

An explanatory introduction includes instructions for plotting flow data by means of logarithms. Reviewed in Mining and scientific press, Dec. 30, 1916; Engineering news, Jan. 18, 1917; Engineering record, Feb. 17, 1917.

illus.

12°.

22. Sprague, Ernest Headly. The stability of arches... London: Scott Greenwood & Son, 1916. (Broadway series of engineering handbooks, v. 20.)

VEK

A condensed treatment of masonry arches, following German authorities and based upon the elastic theory of deformation. Contains an interesting historical introduction and an appendix giving graphical methods for the construction of circular and parabolic arcs.

"The book can be strongly recommended to students and engineers in practice; it will not satisfy the demands of those engineers who clamour for simple formulae.” Concrete and constructional engineering, Nov., 1916.

"Aside from the crowded figures and poor lettering of the illustrations, the book is well printed, especially the mathematical formulas. Those who desire the simpler treatment of arch problems should find it satisfactory and useful." - Engineering record, Oct. 14, 1916.

Also reviewed in Canadian engineer, Nov. 30, 1916; Building age, Nov., 1916.

New

23. White, Lazarus, and E. A. PRENTIS, Jr. Modern underpinning, development, methods and typical examples... York: John Wiley & Sons, Inc., 1917. xii, 94 p. (Wiley engineering series, no. 2.)

illus.

VEF

"The building of the subways of New York undoubtedly contributed more to the advancement of the art of underpinning than all other causes combined. Almost every conceivable case is here met and solved. Miles of excavation were made close to and much deeper than the adjacent buildings on all kinds of foundations, solid and shelving rocks, earth and quicksand. Some of the buildings had to be carried bodily and set upon the subway roof. The structures varied from unimportant little buildings up to one of twenty-one stories, and included miles of elevated railroads.” — p. 2.

While intended primarily for engineers, this book should give the general reader a clear idea of how this difficult work was done. Notable are the 48 illustrations, several of which are from photographs with the details drawn in to scale.

Reviewed in Engineering record, Feb. 17, 1917; Bulletin of the General Contractor's Association, Jan., 1917.

Electrical Engineering

24. Bender, C. W. Railway electrical engineers' handbook [of electric light and illumination. 2. ed. rev. and enlarged. Cleveland: Engineering Department of National Electric Lamp Association, 1912. 344 p. illus. narrow 12°.

Desk-Tech. Div.

Second edition of this compact pocket book contains a large amount of up-to-the-minute information concerning the electric lighting of trains. Describes the straight storage battery system, head-end systems, and the several axle generators; discusses the cost of equipment and operation; tells about the types and operation of storage batteries, and of incandescent lamps. Section

7 gives data on illumination and methods of calculation, while section 8 consists of brief notes on the illumination of the different car types. The remainder of the volume is devoted to conductor and wire data, general data, and physical and mathematical tables.

25. Clewell, Clarence Edward. electricity...

Handbook of machine shop

New York: McGraw-Hill Book Co., Inc., 1916.
Desk-Tech. Div.

461 p. illus. 16°.

A concise simply written reference pocket book for the practical machine-shop man who has to do with the care and operation of electrical shop equipment. Section 3 treats of the various costs involved; section 6 deals with soldering and welding; and section 10 with the application of motors to the various kinds of shop machinery. There are reading references both in the text and at the section endings.

Reviewed in Iron tradesman, Nov., 1916; Electrical news, Nov. 1, 1916; Electrical record, Feb., 1917.

26. James, William H. N. Alternating currents in theory and practice... Cambridge: University Press, 1916. vi, 353 p. illus. 8°. (Cambridge technical series.) VGI

An adequate basis for the specialized study of alternators, static transformers, induction motors, and convertors-which machines are clearly and simply described. Chapter XI deals with switchgear, protective appliances, and high tension transmission. The calculus is not used in the body of the text, although several solutions have been given in footnotes "mainly with the idea of showing students what excellent examples of the use of elementary calculus are furnished by the subject under discussion." Well illustrated.

27. Kapp, Gisbert. The principles of electrical engineering and their application. New York: Longmans, Green & Co. [1916.] 8°.

v. 1. Principles.
354 p. illus.

VGC This, the first of a proposed series of two volumes, is intended as a textbook for students of the several branches of engineering and as a handbook for the general engineer.

"All the subjects treated in this book come, strictly speaking, into the province of the electrical engineer, but for him this book is merely an introduction to the study of some specialised work on the particular branch of electrical engineering he is adopting. The general engineer should find all he requires here; some may even think more than they require, but this is unavoidable. The line of demarcation between general and electrical engineering is not definite; it stretches this way and that according to the particular subject an engineer is interested in."-Preface.

Reviewed in Canadian engineer, Oct. 26, 1916, Mechanical engineer, Oct. 13, 1916, and Electrician, Nov. 10, 1916, p. 187.

28. Klingenberg, G. Large electric power stations, their design and construction, with examples of existing stations... New York: D. Van Nostrand Co., 1916. xvi, 260 p. illus. sq. 8°.

VGMB

English translation of Dr. Klingenberg's important work: Bau grosser Elektrizitätswerke. Emphasizes the standpoint of economy in capital outlay and production, discussing in detail the principles of design and operation of engine room, boiler-house, coal equipment, ash removing machinery, and switchgear, with suggestions concerning the location and architectural features of the plant.