Aircraft year book. New York: Aeronautical Chamber of Commerce of America, Inc., 1924. viii, 339 p. illus. 8°. $4.25. VDS (121) Abundant facts and figures concerning American aeronautics during the past year, with a chapter on developments in fifty-five other countries.

American Society of Mechanical Engineers, New York. Standard rules for the construction of stationary steam boilers known as the A. S. M. E. boiler construction code formulated by the Boiler Code Committee. New York: The American Society of Mechanical Engineers, 1924. 198 p. illus. 8°. $2.50 VFH (121)

"The primary object of these Rules is to secure safe steam boilers. The interests of boiler users and manufacturers have been carefully considered and the requirements made such that they will not entail undue hardship by departing too widely from present practice." Introduction.

Reviewed in Power house, June 5, 1924. Associated Mountaineering Clubs of North America. New Bulletin, 1924. York, 1924. 47 p. 12°. 7 cents a copy.

Lists sixty affiliated clubs and societies, with names of officers and facts of interest. Tells of present activities in mountaineering and has some special articles dealing principally with the national parks. Copies may be obtained in Room 118, The New York Public Library, 476 Fifth Avenue, New York City.

Baly, E. C. C.

Spectroscopy. In two volumes. 3. ed. v. 1. London and New York: Longmans, Green & Co., 1924. xi, 298 p. illus. 8°. $5.00. PET (117)

To be completed in two volumes as a revision of the 1912 edition. Volume 1 deals with spectroscopic history, and with standard methods of work in the infra-red, visible, and ultra-violet regions of the spectrum.

"Here is a first-class practical book, written by an acknowledged authority, and crowned with those final glories of book-blessedness, author and subject indices, crying out the directions in the plainest possible way of the right road to work with the microscope." Chemical news, London, July 25, 1924.

Also reviewed in Engineering, Sept. 5, 1924.

Barber, T. W. Civil engineering design types and devices, a classified and illustrated index of plant, constructions, machines, materials, means and methods adopted and in use in civil engineering works of every class for the use of civil engineers, draughtsmen, students, builders and contractors. 2. ed., enl. London: Crosby Lockwood & Son, 1924. viii, 252 p. illus. 8°. 7s. 6d.

VDB (121) Identifies 1779 machines and constructions by the use of simple line drawings.

Reviewed in Public works, London, April-May,

1924.

Barnes, Frank E. Estimating building costs and appraising buildings. New York: McGraw-Hill Book Co., Inc., 1924. xii, 822 p. illus. 8°. $5.00. Desk (121)

Includes not only the detailed determination of costs, but condenses a large amount of technical information. Full data on present-day costs of replacing various types of existing buildings built between 1890 and 1923. Chapter on depreciation. Author is Supervising Building Valuation Engineer of the New York Central Lines.

Beck, Conrad. The microscope. Part 2. An advanced handbook, a sequel to "The microscope, a simple handbook." London: R. & J. Beck; New York: D. Van Nostrand Co., 1924. 231 p. illus. 8°. $3.00.

OCE (117)

"The book suffers somewhat on the instrumental side from the fact that the apparatus described is almost entirely the product of one firm. The only general criticism is that there is in places a somewhat inexact method of expression, but even this may be excused on the ground that the book is written for microscope users to whom practical hints are more valuable than scientific exposition. The book may be recommended to all working microscopists." - Journal of scientific instruments, May, 1924.

Berthoud, Alfred. The new theories of matter and the atom, translated from the French by Eden and Cedar Paul. London: Geo. Allen & Unwin, Ltd.; New York: The Macmillan Co., 1924. 259 p. 8°. $3.50. PAW (117)

"I have not attempted to popularize unduly or, with such an end in view, to slur over all the difficulties. But although this book cannot be read without close attention, my aim has been to render the ideas of which it treats intelligible to the cultured general reader." - Preface.

For a review of the French edition see Nature, Feb. 9, 1924.

Blanchard, Harold F. Electrical equipment of the automobile, in collaboration with A. F. Oliver. New York: U. P. C. Book Co., Inc., 1924. xii, 441 p. illus. 8°. $3.50. TON (121)

Clear, complete, and well-arranged instruction for locating and curing troubles of the lighting, starting, and ignition systems, with a section devoted to the storage battery. Principles of electricity and of various apparatus carefully explained. 264 diagrams and illustrations. Mr. Blanchard was formerly Technical Editor of the Motor world.

catalysis, and structure, and including a section by Jacques Loeb on the crystalloidal and colloidal behavior of proteins. Volume 2 deals with the practical applications of colloid chemistry to mineral, vegetable and animal products. Numerous bibliographies.

*Bonnin, Alfred. Tutenag & Paktong; with notes on other alloys in domestic use during the Eighteenth Century. [London]: Oxford University Press, 1924. xi, 98 p. illus. 8°. £2, 2s. VID (117)

Tutenag was the name applied to zinc imported into Europe from China and the East Indies during the eighteenth century. This name, however, became synonymous with paktong, a copper-nickel-zinc alloy used for making fenders and candle-sticks. Mr. Bonnin's book discusses the history of the alloy and presents photographic representations of art objects made therefrom. Has also a chapter on art alloys in general.

*Boscovich, Roger Joseph. A theory of natural philosophy put forward and explained. Latin - English edition from the text of the First Venetian edition published under the personal superintendence of the author in 1763 with a short life of Boscovich. Chicago: Open Court Publishing Company, 1922. xix, 463(7) p. fo. $20.00.

† PAD (117)

Boscovich (1711-1787), a Jugo-Slav and a Jesuit, was reputed highly as a philosopher, astronomer, physicist, mathematician, historian, engineer, architect, and poet.

"Presents a system that is midway between that of Leibniz and that of Newton."- p. 35.

Brinckloe, William Draper. The small home. How to plan and build it with sixty practical plans for low cost bungalows, cottages, farmhouses, apartments, garages and barns. New York: Robert M. McBride & Company, 1924. 223 p. illus. 8°. $2.50.

VEC (121)

Based upon "Home-planning Contests," conducted by the author, for The Ladies Home Journal, The Farm Journal, People's Popular Monthly, and other magazines.

de Bruyne, N. A. The electrolytic rectifier, for electrical engineers, physicists and wireless amateurs, containing a chapter showing how to make and use a rectifier for charging accumulators from alternating current supply mains. London and New York: Sir Isaac Pitman & Sons, Ltd., 1924. vii, 75 p. illus. 12°. $1.00. VGM (121)

As the author says: "A small book on a big subject." However, there are plentiful references to original sources. Makes some qualitative additions to the gas layer theory.

"The subject matter has been ably sifted from a large mass of scattered publications, and the book is a valuable contribution to modern technical literature The diagrams are clear and well chosen, the indexing, printing and general arrangement good." Electrical review, London, July 4, 1924.

Also reviewed in World power, Sept., 1924.

Calcott, W. S., and others. Monograph on corrosion tests and materials of construction for chemical engineering apparatus...reprinted from v. 15, part 1 of the Transactions of the American Institute of

Chemical Engineers. New York: D. Van
Nostrand Co., 1923. vi, 182 p. diagrs. 8°.
$3.00.
VOF (119)

The first paper, dealing in detail with laboratory corrosion tests, embodies valuable data released by the Jackson Laboratory of the du Pont Company. The second paper, by a chemical engineer of the National Research Council, contains a list of corrosive agents as well as a discussion of resistive metals and equipment. Bibliographies.

Reviewed in Journal of the Franklin Institute, April, 1924.

Chemistry in the twentieth century, an account of the achievement and the present state of knowledge in chemical science, prepared under the guidance of a committee representing the scientific societies with Dr. E. F. Armstrong, F.R.S., as chairman and editor. New York: The Macmillan Co., 1924. viii, 281 p. illus. 8°. $5.25. PKO (119)

Relates "in a convenient form the outstanding part that British scientists have played in the wonderful developments of recent years. To those possessing a fairly detailed knowledge of chemistry or physics, the volume should be of interest, summarising as it does those branches of scientific progress with which the reader in the course of his daily work has not had opportunity to keep abreast. As a whole the work does not, and was not intended, to appeal to the general public... There are exceptions however.". Chemical trade journal, May 23, 1924.

-

Clarkson, Grosvenor B. Industrial America in the world war. The strategy behind the line 1917-1918, with an introduction by Georges Clemenceau. Boston and New York: Houghton Mifflin Co., 1924. xiii, 573 p. illus. 8°. $6.00. V (121)

A history of the United States War Industries Board. There are chapters devoted to the rôle of steel; copper, brass, and other non-ferrous munitions metals; platinum and tin; ferro-alloys; nitrates; explosives and chemical warfare; artificial dyes; the forests; leather and rubber; textiles; tools; power and transportation. There are many interesting personal touches.

Craig, Archibald. Notes on chemical analysis. Easton, Penn.: Chemical Publishing Co., 1924. 162 p. illus. 8°. $2.50. PMB (119)

Suggestions concerning apparatus and manipulation, methods of analysis and of separation which the author "believes to be worth recording, and which have been verified by his own experience."

Cranston, J. A. The structure of matter. London: Blackie & Son, 1924. xv, 194 p. illus. 8°. 15s. PLB (119)

Expansion of lectures to advanced students in chemistry at the Royal Technical College, Glasgow. Historical outline is followed by chapters on electrons, radioactivity, atomic numbers, isotopes, crystal structure, atomic theories, the valency theory of Langmuir, and the present outlook. Appendix contains Bohr's theory of spectra.

Croft, Terrell. Conduit wiring. New York: McGraw-Hill Book Co., 1924. 458 p. illus. 8°. $3.00.

X,

VGM (121)

Deals minutely and clearly with materials, installation and testing of this kind of interior wiring as applied to residences and other structures up to the largest office buildings. 700 drawings that really illustrate.

Our physical

Downing, Elliot Rowland. world, a source book of physical naturestudy...with a chapter on radio communication by Fred G. Anibal. Chicago: University of Chicago Press, 1924. xviii, 367 p. illus. 8°. $2.50. OAG (117)

Principles set forth by toys and familiar appliances; with parts of the text intended for the guidance of the teacher-parent. Includes chapters on astronomy and geology. 193 illustrations and a book list. Author is connected with the School of Education, University of Chicago.

Dumville, J., and S. KERSHAW. The worsted industry. London and New York: Sir Isaac Pitman & Sons, 1924. x, 127 p. illus. 12°. (Pitman's common commodities & industries series.) $1.00.

VLMD (121)

"Designed to carry through the whole range of operations involved in transforming raw wool into finished worsted yarn and cloth, to show the interdependence of one process upon another, and to indicate the contribution each process makes towards the value of the finished article." Preface.

--

E. I. Dupont de Nemours & Co., Inc. Principles and practices of up-keep painting. 3. ed. Philadelphia: The Company [1923). 200 p. illus. plates. 8°. $2.00. VEY (121)

Although issued in the interests of the Du Pont products this is an excellent guide for those responsible for the maintenance of industrial property and equipment, and to architects and engineers interested in the protection of new construction in wood, metal, or cement. Deals with interior and exterior surfaces. Chapters on causes of decay, practical tests, mechanical painting, brushes, and paint shop operation.

Ellson, F. A. Automatic telephones. An introductory treatise dealing with the fundamental principles, methods, and advantages of automatic telephony, with descriptions of apparatus, circuits, and operation, for students, telephone operators, and others. London and New York:

"Although a knowledge of the calculus is necessary for the proper appreciation of the various principles treated here, the applications are carefully restricted for the most part to those that do not require the calculus except, possibly for a proper appreciation." - Preface.

Author is Assistant Professor of Mathematics in Dartmouth College.

Fournier d'Albe, E. E. The moon-element, an introduction to the wonders of selenium. London: T. Fisher Unwin, Ltd., 1924. 166 p. illus. 8°. 10s. 6d. PED (117)

This popular author has himself dug deeply into the mysteries of selenium, about which he writes simply and entertainingly, summing up our knowledge of the relations between electricity and light, tracing the history of selenium and describing its characteristics. He also explains its various delicate applications to picture transmission and television, the optophone, the conveying of speech along a beam of light, and the talking film. Interesting illustrations. Reviewed in Nature, July 12, 1924.

Garard, Ira D. Applied chemistry. New York: The Macmillan Company, 1924. vii, 496 p. illus. 8°. $3.25. PKO (119)

"A textbook for college students who have taken a course in general chemistry and who are further interested in the applications of chemistry and the manner in which it functions in modern life. Sufficient organic chemistry is included to make clear any of those later chapters which deal primarily with organic substances.' - Preface.

Author is Professor of Chemistry in the New Jersey College for Women.

*Geikie, Archibald. Text-book of geology. 4. ed. rev. & enl. New York: Macmillan & Co., 1923. 2 v. 8°. $10.00. PTD (117)

Reprint of 4th edition published in 1903. Geikie, Sir Archibald. A long life's work, an autobiography. London and New York: The Macmillan Co., 1924. xii, 426 p. illus. 8°. 18s. OABB (117)

Geikie was reputed the best writer of English prose among his classmates at the University of Edinburgh. As a geologist he is world-known. His autobiography, covering over 400 pages, is a delightful, simply told, record of experiences and friendships, with no attempt to burden the reader with the technicalities of geology

*General Filtration Co. General data on the activated sludge process of sewage treatment, with brief descriptions of a few plants, and other information of interest to sanitary engineers. Rochester, N. Y.: General Filtration Co. [1924.] 47 p. 8°. Gratis. VDI p.v. (121)

Compilation of data, chiefly from periodicals, concerning the plants at Milwaukee; Chicago; Indianapolis; Houston, Texas; Sherman, Texas; Gastonia, N. C. Should be of interest to sanitary and city engineers, especially of the smaller municipalities.

Gibson, Charles R. Great inventions and how they were invented. Interestingly written descriptions of wonderful machines

and appliances and how they work, told in simple language. London: Seeley, Service & Co., Ltd., 1924. 240 p. illus. 8°. $2.50. V (121)

For children from eight to fourteen years of age. Tells of the steam-engine, locomotive, steamship, motor-car, aeronautics, spinning and weaving, electric battery, telegraph and telephone, radio, and the dy. namo. Good illustrations.

Hacker, John L., and others. Build a boat. A new book of small-boat designs and blue prints of twenty-five practical runabouts, cruisers, hydroplanes, auxiliaries, and dinghies. Each design complete in itself, with accurately reproduced drawings, full specifications, and building instructions. New York: Motor Boating, 1924. 90 p. illus. 4°. $3.00. VXHG (121)

*Harding, Richard. Cotton in Australia. The possibilities and the limitations of Australia as a cotton-growing country, containing numerous illustrations and graphs; together with data relating to Australian climate, rainfall, temperature, soil analyses and cost of production. London and New York: Longmans, Green & Co., 1924. xviii, 270 p. illus. 8°. $4.20. VLLD (121)

"The result of eighteen months' investigations made in Australia, and is compiled from a careful study of local conditions made throughout various parts of the country. Its main object is to demonstrate the tremendous cotton-growing possibilities of that continent, and to prove by the pertinent statement of facts, or by comparisons with other countries, to what a vast extent great areas of Australia are adapted by climate and rainfall to commercial cotton production." Preface.

*Harrison, H. H. An introduction to the Strowger system of automatic telephony. London and New York: Longmans, Green & Co., 1924. vii, 146 p. illus. 8°. $2.50. TTH

Although designed for class instruction the mechanisms have been so fully illustrated that the subject may be followed intelligently by the student who lacks access to the switches. Devoted exclusively to the Strowger system (adopted for the city of London); but the author claims that it offers an excellent basis for the study of other systems.

*Harvey, George M. Colliery electrical engineering. A treatise for mine-owners, managers, colliery engineers, and mining students. London: Sir I. Pitman & Sons, Ltd., 1924. xi, 387 p. illus. 8°. $4.50.

VHW (117)

Requires a working knowledge of the theory of direct and alternating currents. Deals with the layout, equipment and maintenance. 153 illustrations.

Reviewed in Electrical review, London, July 11, 1924; Mining journal, London, June 28, 1924; Elec tricity, July 11, 1924; Engineering and mining jour nal, June 21, 1924; Colliery guardian. April 17, 1924. *Hepworth, Harry. Chemical synthesis. Studies in the investigation of natural organic products. London: Blackie and Son Limited, 1924. xx, 243 p. 8°. (Manuals of pure and applied chemistry.) 20s.

POD (119)

Treats of recent work in connection with the natu ral synthesis of organic substances, i. e.: Photosynthesis, the extraction of plant pigments such as chloro

Heuser, Emil. Textbook of cellulose chemistry for students in technical schools and universities as well as for cellulose experts... Translated from the 2d German edition by Clarence J. West and Gustavus J. Esselen, Jr. New York: McGrawHill Book Co., Inc., 1924. xi, 212 p. 8°. $2.50. VOF (119)

"Presents only theoretical considerations from a purely scientific viewpoint." Reviews the various attempts to establish the constitutional formula, but omits detailed reference to colloidal chemistry. Author is a professor in the Technical School of Darmstadt.

History of the Royal Astronomical Society, 1820-1920, edited by J. L. E. Dreyer & others. London: The Society, 1923. vii, 258 p. ports. 8°. 20s. OMD

The century is divided into seven periods, each recorded by a prominent member of the Society. A readable account of British astronomers and their accomplishments. 12 portraits.

Holslag, C. J. Arc welding handbook. New York: McGraw-Hill Book Company, Inc., 1924. xi, 250 p. illus. 8°. $2.00.

VID (117)

"An attempt has been made, throughout, to describe the methods, step by step, in a clear and practical manner so that the beginner may understand both the equipment and the processes. To the engineer, draftsman, and designer, it should serve as a guide." - Preface.

Reviewed in Welding engineer, July, 1924.

Hool, George A., and W. S. KINNE, editors-in-chief. Reinforced concrete and masonry structures. Compiled by a staff of specialists. New York: McGraw-Hill Book Company, Inc., 1924. xix, 786 p. illus. 8°. $6.00. VEOM (121)

Practical, well-illustrated, chapters by specialists, covering preparation and placing of concrete; forms; bending and placing reinforcement; finishing concrete surfaces and waterproofing; reinforced concrete buildings; retaining walls; slab and girder bridges; arches; hydraulic structures; chimneys; concrete detailing; and estimation of concrete costs.

Hopkins, B. Smith. Chemistry of the rarer elements. New York: D. C. Heath & Co., 1923. vii, 376 p. diagrs. 8°. $4.00. PNF (119)

"An interesting account of those elements which have not been studied to any great extent, either on account of their scarcity, or because they have found no application in industry or the arts. The book is written in an easy style, and should be intelligible to all those who possess a knowledge of general chemistry. One of the most interesting features is the series of short but comprehensive sections dealing with the uses of each element and its compounds... Numerous references are given in the text." English mechanic, May 30, 1924.

Author is Professor of Inorganic Chemistry in the University of Illinois.