*Adams, Roger, and others, editors. Organic syntheses, an annual publication of satisfactory methods for the preparation of organic chemicals. v. 1. New York: John Wiley & Sons, 1921. vii, 84 p. illus. 8°. $1.50. VOF (118) By reason of increased cost and delay in obtaining foreign chemicals it is proposed to assist American chemists by publishing annually the results of carefully checked researches covering in each series some twenty substances. It is stated that every five years the data will be rearranged and revised for inclusion in a cumulative volume.

"Although the main object in this series is to give the most convenient laboratory methods for preparing various substances in one-half to fivepound lots, an attempt has also been made to have these processes as far as possible adaptable to large scale development." Preface.

*Aitchison, Leslie. Engineering steels, an exposition of the properties of steel for engineers and users to secure economy in working and efficiency of result. London: Macdonald & Evans, 1921. xxxi, 396 p. illus. 8°. 25s. VIR (117)

The author's viewpoint is that chemical composi tion is less of interest to the engineer than "heat treatment" designed to give the steel the qualities of strength, toughness, hardness, durability, etc. Much of the work is therefore devoted to discussions of methods of testing and their results. Well illustrated with diagrams and photo-micrographs. Bibliographies in the appendix.

"The author's training has evidently been wholly metallurgical and his outlook is narrow. Tensile tests, shock tests, hardness tests are not the confines within which the engineer has his being, and yet the whole subject is discussed from a restricted point of view, in which such laboratory tests fill a very large portion of the field of vision, and any reference to the result of general engineering experi ence in special steels will be looked for in vain. Machining properties, for instance, are covered by a general statement of about four lines. It is a book written on the general properties of steel and its heat treatment from the standpoint of the metallurgist." - Engineering, Sept. 9, 1921.

Also reviewed in Ironmonger, Sept. 3, 1921; Mechanical world, Aug. 5, 1921; Electrical review (London), Sept. 9, 1921; Foundry, Aug. 18, 1921.

*Allen, Richard William. The air supply to boiler rooms of modern ships of war. London: Charles Griffin & Co., Ltd., 1921. (2. ed.) 149 p. 4°. £2.2.0. VXHG (121)

Presents data resulting from research work on design, construction, arrangement, and testing methods; on the installation of fans, deflectors, deck intakes, cowls, weather flaps, etc. Excellently printed and finely illustrated. Contains information which, for military reasons, was suppressed in the previous edition (1916). It is a volume of new ideas pertaining to a subject that has been neglected. The last few chapters relate to the calorific value of oil fuels, the air required for their combustion and various calculations.

"We never read a book of this kind without experiencing an uneasy feeling that we are surrounded

"This is a small book as compared with The New building estimator, of which twelve editions were issued up to date, but will be of great service to thousands who might at first consider the larger work too comprehensive. This book will act as a

feeder to the other. An endeavor has been made here to present facts in plain language." — Preface. *Austin, Leonard S. The metallurgy of the common metals: gold, silver, iron (and steel), copper, lead and zinc. 5. ed., rev. & enl. New York: John Wiley & Sons, Inc., 1921. xvii, 613 p. illus. 8°. $7.00. VIB (117)

"A book which has already made a place for itself in the library of metallurgy. Intended for use as a textbook and a reference work for men in the field... Considerable space devoted to...plant equipment and costs, including such items as location, equipment and erection, accessory equipment, equipment of plant, storage and supply and cost of plants...the general economic situation, organization and operating and profits and costs.... The book is well illustrated and indexed. It is a valuable work and should have a place in every metallurgist's library." - Metal industry, New York, Oct., 1921.

Also reviewed in Canadian mining journal, Sept. 23, 1921; Salt Lake mining review, Sept. 15, 1921; Mining and scientific press, Sept. 17, 1921.

*Batcher, Ralph R. Prepared radio measurements with self-computing charts. New York: Wireless Press [cop. 1921]. iv. 132 p. diagrs. sq. 8°. $2.00. TTF (121)

"A book that is devoted entirely to simplifying the methods of determining electrical and geometrical constants for radio instruments and appliances. The charts included in this book represent formulae that are apt to occur in ordinary radio computations. Designed to eliminate all mathematical work, except in a few cases when it is necessary to evaluate simple ratios and require no special equipment except a straight-edge or ruler." Introduction.

Bayston, John R. The Ford car; construction and repair. A practical guide including instructions on the care and repair of the Ford car, complete methods for testing and repairing the Ford electrical system, and questions and answers. Chicago: American Technical Society, 1921. 148, 16 p. illus. 12°. $2.00. TON (121)

"In writing this volume, the author has constantly kept before him the repair man- his difficulties and his problems and his inability to find their solutions in the textbooks in his field and he has provided this practical material from his own years of experi ence. Preface.

Baxter, Leon H. Elementary concrete construction. Milwaukee: Bruce Publishing Co. (1921., 104 p. illus. 8°.

VEO (121) Manual training text-book for 7th and 8th grades. First half is devoted to history, manufacture, mixing, and estimating. Second part is given over to practical problems, each one accompanied by scale drawings.

Bolas, Bernard D. A handbook of laboratory glass-blowing. New York: E. P. Dutton & Co., 1921. vi, 106 p. illus. 16°. $1.50. PKV (118)

Easy exercises are followed by directions for making a large number of special pieces of apparatus, such as internal seals, spray arresters, Soxhlet tubes, vacuum tubes, thermometers, etc. Chapter 4 describes the annealing, drilling, grinding, and shaping of glass by other than fusion methods; marking glass, silvering, joining glass and metal.

Booth, Harris. Aeroplane performance. calculations. London: Chapman & Hall, Ltd., 1921. xv, 207 p. diagrs. 8°. 21 s. (Directly useful technical series.)

VDY (121)

This practical up-to-date handbook is designed to furnish a comprehensive and efficient instrument for saving time. Part 1 presents the theories of body resistance; wing characteristics; propeller, machine, air, ground, and water performances. Part 2, showing practical procedure, comprises a large number of curves. Part 3 works out problems at length and also shows the complete calculations for a typical machine. Author was recently technical adviser to the Air Department of the British Admiralty.

"The rapid advance of aeronautics during the war has been followed by a large crop of books, of which many, under the conditions now prevailing, will scarcely justify their existence... Books dealing with specific aspects of the subject, however, are likely to prove of more permanent value, and Mr. Booth's book is a case in point... Aeronautical engineers and designers should find the book of very great service as a time saver, while the student will find sufficient of the theory given to enable him to obtain a clear idea of the fundamental principles upon which the later work is based." Mechanical world, August 12, 1921.

Also reviewed in Engineering, Oct. 28, 1921. *Bower, Clifford O. Hydraulic forging and the plastic deformation of steel and its heat treatment. London: The Library Press, Ltd., 1921. xiii, 279 p. illus. 8°. 30 s. VNG (121)

Summary of practical experience written for the engineer, forgemaster, foreman, draughtsman, student, and all others interested in the study of the material, mechanical treatment, power forging presses and equipment, re-heating and annealing furnaces used in the manufacture of iron and steel articles by the process of power forging. One hundred and fifty-two photographs, drawings, etc.

Reviewed in Engineering, Sept. 23, 1921. *Broodbank, Sir Joseph. port of London. London: nor, 1921. 2 v. illus. 8°.

History of the Daniel O'Con£3, 3 s. VDNA (121) Traces the development and general progress of foreign trade from the Saxon period until the present time. Brief accounts are given of the careers of the various organizations that constitute the port. The volumes are attractively finished, containing 76 full-paged illustrations and 3 large maps. The author, chairman of the Dock and Warehouse Committee of the Port of London Authority from 1909 to, 1920, has had 49 years of personal association with port administration.

Buck, H. D. Flat machine knitting and fabrics. New York: Bragdon, Lord & Nagle Co. (1921. 147 p. illus. 8°. VLB (121)

This elementary work treats of methods of cloth construction by means of latch needle, with special emphasis on the study of the loop and on the forma tion of various stitches. Has chapters on methods of shaping collars, fashioned goods, automatic widening machines and the flat Jacquard machine. Profusely illustrated. Author is in charge of knitting in The Textile School of the City of New York.

Chatburn, George R. Highway engineering; rural roads and pavements. New York: John Wiley & Sons, 1921. xii, 379 p. illus. 8°. $3.00. VDG (121)

This text-book covers road location, types and adaptation, drainage, culverts and bridges, various kinds of roads, surface treatment for dust prevention, revenue, administration and organization. Author is lecturer on highway engineering in the University of Nebraska.

Reviewed in Surveyor, Aug. 5, 1921.

*Coles, Alfred C. Critical microscopy. How to get the best out of the microscope. London: J. & A. Churchill, 1921. viii, 104 p. illus. 8°. 7s. 6d. net. OCC (117)

Simple, practical and suggestive, this book explains the use of the microscope and its accessories, with short accounts on micrometry and photomicrography.

*Cosgrove, J. J. Hollow tile construction. A practical explanation of modern methods of designing and building fireproof residences of hollow tile, written so the builder may use it, with chapters on walls, floors, roofs, partitions, framework, roofing, cornices, fireplaces and interior work, analysis of specifications, estimating. photographs and floor plans of finished structure, etc. New York: U. P. C. Book Co., Inc., 1921. vi, 202 p. illus. 12°. $2.50. VEO (121)

Crocker, Francis B., and MORTON ARENDT. Storage batteries. A practical presentation of the principles of action, construction and maintenance of lead and non-lead batteries and their principal commercial applications. Chicago: American Technical Society, 1921. 136, 10 p. illus. 12°. $2.00.

VGH (121)

Deals adequately with proper charging methods, testing, locating and remedying troubles; the methods of use in large generating stations, in the telephone and telegraph industries, and in electric vehicles. Designed for self-instruction and home study.

Dalzell, Kenneth W. Homes of moderate size. A collection of photographs and plans of modern suburban and country homes, following the Colonial, Italian and English architectural styles, and arranged accordingly. Selected for their artistic merit and adaptability to the needs of the average American family, from the work of Kenneth W. Dalzell, arranged and edited by Edward F. Hammel. New York: U. P. C. Book Co., Inc., 1921. 144 p. illus. 4°. $4.00. † MRGF

Eddy, Walter H. The vitamine manual, a presentation of essential data about the new food factors. Baltimore: Williams & Wilkins Company, 1921. 121 p. 8°. $2.50. PPB (118)

Tells how vitamines were discovered, the attempts to determine their chemical nature, methods of testing, sources, chemical and physiological properties, use in diets, and diseases that result from vitamine deficiencies. Extensive bibliography of 28 pages. Author is Associate Professor of Physiological Chemistry in Columbia University.

"The literature has assumed a bulk that precludes sending the student to original sources except in those instances when they are themselves to become investigators. The demand on the part of the layman for concise information about the new food factors is increasing and worthy of attention. For

all of these reasons it has seemed worth while to collate the existing data and put it in a form which would be available to both student and layman.". Preface.

Reviewed in Canadian chemistry and metallurgy, Dec., 1921.

*Eiffel, G. Résumé des principaux travaux exécutés pendant la guerre, au laboratoire aérodynamique Eiffel, 1915-1918. Paris: Librairie Aéronautique, n. d. 212 p. illus. 4°. + VDW (121)

This quarto volume is a technical record of experi ments on the aeroplane and its various parts, with a chapter on wind tunnels. Completely diagramed.

*Elles, Gertrude L. The study of geologi

cal maps. Cambridge: University Press, 1921. viii, 74 p. illus. 8°. 12 s. net.

PTD (117)

"The first three chapters are given up to the exposition of topographical maps in their relation to geology, and full emphasis is given to the paramount importance of surface relief in the analysis of geological maps... The remainder of the book describes and illustrates methods of solving the problems of dip, thickness, relative age of strata, etc., from a geological map... The book is very well illustrated with diagrams, sections, and maps, and a series of plates of block diagram drawings helps considerably in expounding the relation between surface relief and geological phenomena.' Geological magazine, August, 1921.

Sec

The first section of this simply written work describes with some detail the constructional superintendence of a large 20-story office building, including a safe-deposit department and a Turkish bath. tion 2 tells how to write specifications, with details for a small house, and has chapters on "danger sig. nals" and the importance of clear drawings. Designed primarily for students and juniors.

EMF electrical year book, an encyclopedia of current information about each branch of the electrical industry with a dictionary of electrical terms and a classified directory of electrical and related products and their manufacturers in the United States and Canada, edited by Frank H. Bernhard. Chicago: Electrical Trade Publishing Co., 1921. 843 p. illus. 4°. $10.00.

+ VG (121)

The material of this annual is arranged in one alphabet and covers a large variety of subjects: (1) growth, development and status of various appli cations of electricity; associations; colleges and

schools; periodicals; libraries and testing laboratories; biographies; facts concerning codes, patents, and other items of interest; (2) definitions of electrical terms, words and abbreviations; (3) descriptions of products with names of manufacturers, also separate entries for the latter. Among the names of the contributing editors are some of the best known in the United States. An excellent volume for the reference librarian.

*Escard, Jean. L'électrométallurgie du fer et ses alliages; fontes, fers et aciers ordinaires et spéciaux électrothermiques; fer électrolytique. Ferro-alliages simples et complexes. Travail, trempe et soudure électriques des fers, fontes et aciers. Traitement électromagnétique des minerals de fer et des fers métallurgiques. Paris: Dunod, 1920. ix, 811 p. illus. 4°. VIP (115)

Extensive study covering electric furnaces designed for the Héroult process; also a section on the Keller furnace. A long chapter is devoted to electric steel plants, with descriptions of some well-known installations. Industrial iron alloys; the manufacture and utilization of electrolytic iron; and electrothermic processes, including tempering and welding, are fully treated. Completely illustrated and has many dia

grams.

*Fischer, Martin H. Soaps and proteins, their colloid chemistry in theory and practice...with the collaboration of George D. McLaughlin and Marion O. Hooker. New York: John Wiley & Sons, Inc., 1921. ix, 272 p. illus. 8°. $4.00. VON (118)

Dr. Fischer is professor of physiology in the University of Cincinnati. The linking of soaps and proteins was originally undertaken as a purely biological problem, for the reason that the former are similar in their colloidal chemistry to the latter, and because they contain a more controllable number of purely chemical variables. Covers: the colloid chemistry of soaps, including their foaming, emulsifying and washing properties; the colloid chemistry of soap manufacture, outlining the principles of hot and cold processes of manufacture, also a discussion of fillers; and the analogies in the colloid chemistry of soaps, protein derivatives and tissues.

Fiske, Bradley A. Invention the masterkey to progress. New York: E. P. Dutton & Co. (1921. ix, 356 p. illus. 8°. $4.00. V (121)

In tracing the history of inventions from primeval through ancient, medieval and modern times, the book reveals how much of the progress of civilization is due to inventors. Here are shown the effects of the inventions of the gun and of printing; the discoveries of Columbus, Copernicus, Galileo; the rise of electricity, steam and chemistry; various important creations of inventions and their beneficent influence; invention and growth of liberal government; the modern military machine; telephone; phonograph and preventive medicine; conquest of the ether; moving pictures; rise of Japan and the United States; the fruition of invention; the machine of civilization and the dangerous ignorance concern. ing it, as shown by statesmen; and finally a discussion of the future of inventors.

Geddes, A. E. M. Meteorology, an introductory treatise. London: Blackie & Son, Ltd., 1921. xx, 390 p. illus. 8°. 21s. PRC (117)

Simple and devoid of difficult mathematics, with an interesting historical introduction. Has chapters on atmospheric electricity, atmospheric optics, atmospheric acoustics, weather forecasting and climate. Maps and excellent colored plates. Author is connected with the University of Aberdeen.

"Mr. Geddes' book is very welcome as no compre hensive text-book of meteorology has been produced in this country [England] in recent years which

could be regarded as a standard work for the nonmathematical student... It is to the advantage of the book that the author seeks to express rather the views of English meteorologists as a whole than to advance particular theories. The style throughout is easy and attractive, and the reader is not obliged to have already a knowledge of physics in order to follow the reasoning." - E. V. Newnham in Science progress, Oct., 1921.

Also reviewed in Engineering, Aug. 12, 1921.

Gilbert, Chester G., and JOSEPH E. POGUE. America's power resources. The economic significance of coal, oil, and waterpower. New York: The Century Co., 1921. 326 p. illus. 8°. $2.50. VHV (117)

"The material presented is largely the result of investigations carried on by the authors in the Smithsonian Institution, in the Fuel Administration, and in a somewhat diversified engineering practice, and brought out from time to time as special papers, emanating mostly from the Division of Mineral Technology, United States National Museum." - Preface.

Treats of human labor and mechanical work; the foundations of industrialism; coal, the basis of national welfare; oil, the accelerator of progress; natural gas, nature's bonus to America; water-power, an unused annuity; smokeless fuel and civic progress; power and industrial progress; three-dimensional transportation; the equalization of industrial oppor tunity; coordination and industrial evolution.

Grabau, Amadeus W. A textbook of geology. Part 2, Historical geology. Boston: D. C. Heath & Co. [cop. 1921. viii, 976 p. illus. 8°. $6.00. PTD (117)

An

Part 1 was noted in New technical books, 1921, v. 6, no. 2. Part 2, comprising nearly 1000 pages and over 1200 illustrations, emphasizes stratigraphic rather than biologic development, the latter having been segregated mainly in special chapters. interesting history of the development of classification includes portraits of pioneers in this work. Mapping and correlation of geological formations; fossils, their nature and mode of preparation; essential characteristics of animal types; and the beginnings of earth history are followed by detailed descriptions of the geologic formations. Has an unusually complete index. Although designed as a textbook the general reader should find much of interest. well-known author is at present professor of palaeontology in the Government University of Peking, China.

The

This elementary work covers the principal materials used in cake and pastry making. There are chapters on coloring matters, aeration of goods, general methods of using materials, and analysis. Also has a good list of books on the various aspects of the art. It is not, however, a book of recipes. Author is head of the Food Stuffs Department, College of Technology, Manchester, England.

Grant, L. C. The steam turbo-alternator; a treatise for central station engineers and operators, designers and engineering students, dealing with the various types of turbines, high-speed alternators and their control gear in present day use. New York: Sir Isaac Pitman & Sons, Ltd., 1921. xvi, 260 p. illus. 8°. $5.00. VFM (121)

Practical and devoid of difficult theory and mathematics. 161 illustrations.

Grew, W. F. The cycle industry: its origin, history and latest developments. London: Sir Isaac Pitman & Sons, Ltd., 1921. ix, 123 p. illus. 8°. (Pitman's common commodities and industries.) $1.00. TOR (121)

"An attempt is made to give a brief outline of the history of the manufacture of bicycles from the introduction of the velocipede to the present-day mechanically propelled machine, the motor cycle. Some of the more important processes of manufacture are described, with particulars of the numerous other trades on which the cycle manufacturer is dependent." Preface.

Hale, Harrison. American chemistry. A record of achievement. The basis for future progress. New York: D. Van Nostrand Company, 1921. vii, 215 p. illus. 8°. $2.00. VO (118)

A summary of the most striking facts in the various chemical fields, previous to and during the great war. It discusses the progress in food, fertilizers, textiles, coal tar and dyes, fuel, silicate industries, paints and varnishes, rubber, electro-chemical industry, acids, and metals. The volume concludes with a brief forecast of the industry. With its untechnical style and appropriate illustrations, should prove of interest to the general reader.

*Harvey, Arthur. Tanning materials with notes on tanning extract manufacture. London: Crosby Lockwood & Son, 1921. vii, 182 p. illus. 8°. 15 s. VMK (121)

One half of this work comprises an alphabetical list of materials with the important facts about each, Section 2 is a synopsis of the general methods used in the manufacture of extracts. Section 3 is devoted to the examination of methods of examining materials. Has a good botanical index.

"The volume is well-illustrated, and from the point of general get-up leaves nothing to be desired. It will certainly appeal to all students of leather chemistry, and will be a useful handbook in the tanner's laboratory.". Chemical age (London), July 9, 1921.

Also reviewed in Chemical trade journal, June 25, 1921.

Complete, authoritative, and well illustrated, this volume presents "enough to enable the reader or the designer of any special work to obtain general ideas, make better comparisons, and form safe general opinions on the subject." - - Preface.

Discusses fundamental principles relating to house treatment, collection and final disposal; procedure in small towns and villages; estimating costs of disposal; feeding of garbage to hogs; stable and street refuse; night-soil and animals; incinerators, their design and construction. Unusually complete index.

*Hicks, I. P., and JOSHUA C. DUNCAN. Hicks' builders' guide... New York: U. P. C. Book Co., Inc., 1921. 384 p. 12°. $3.00. VEC (121)

New edition of this practical work shows much enlargement. Beginning with the layout and foundations the reader is directed through the details to the finished structure, be it of wood, brick, or hollow tile. There are chapters on the waterproofing of foundation walls, stucco work, fireplaces and chimney design, metal ceilings and walls, and estimating.