work, who are anxious to become familiar with the methods and processes of one of the country's most important industries, may do so through the medium of a book specifically written for the purpose, and covering the subject in broad, general outline... The work is, therefore, in a sense, elementary in nature, but_covers fully not only the practical but the commercial phases of the industry." - From a review in Machinery, New York, May, 1915, þ.`774.

Also reviewed in Iron Age, New York, April 8, 1915, p. 822; Iron & Coal Trades Review, London, April 23, 1915, p. 576; Engineering Record, New York, June 26, 1915, p. 813; Iron Trade Review, Cleveland, March 25, 1915, p. 603.

*Borchers, Wilhelm, 1856-. Kupfer; bearbeitet von Wilhelm Borchers... Unter Mitwirkung von Rudolf Franke... Halle (Saale): W. Knapp, 1915. 450 p. illus. 4°. (Metallhüttenbetriebe.

Bd. 1.)

A comprehensive and exceptionally well illustrated treatise of 450 pages covering chiefly the best modern American practice of roasting, smelting, concentration, leaching, refining, and electrolysis. The colored plates and historical data are noteworthy. The author is professor of metallurgy in the Royal Technical High school of Aachen, Germany.

Clennell, John Edward. The cyanide handbook. York: McGraw-Hill Book Co., 1915.

601 p.

New

illus. 2. ed. 8°.

Contains 81 pages more than the previous edition and is brought strictly up to date with sections and illustrations dealing with crushing and grinding, hydraulic classification, filter presses, vacuum filtration, agitating and aërating devices, zinc and aluminum dust precipitation, and the treatment of refractory ores.

"This new handbook for the use of managers of cyanide plants, chemists, foremen and assayers is devoted to the fundamental principles of cyanide practice, and is therefore likely to have a greater permanent value than treatises given up largely to descriptions of mechanical details and arrangements of individual plants.. The handbook does not add greatly to the theoretical discussion of the cyanide process, but it places in the hands of those engaged in the conduct of actual operations information to meet the daily needs of the plant, and also data for the study of obscure problems along lines where the greatest improvements are yet to be made." From a review of the first edition in the Engineering and Mining Journal, New York, August 6, 1910, p. 277.

p. 392.

Second edition is reviewed in Mining Press, San Francisco, March 6, 1915,

Coppock, John B., and G. A. LODGE. An introduction to mining science. London: Longmans, Green and Co., 1915. 12°. (Longmans' technical handicraft series.)

230 p.

"This little handbook is intended to instill into the minds of workers in mines the necessity for regarding all problems of underground safety in an intelligent way. It is cleverly and interestingly written, so that though intended primarily for the beginner and even the dullard, it contains so many novel presentations of well known facts that it may convey many a useful hint to the most seasoned individual. A specialty is made of the multifarious ways in which an underground fire can be started, and all through the book instances are given of methods for detecting and preventing such outbreaks... Both in substance and method of presentation the book is excellent.” — From a review in Mining Magazine, London, July, 1915, p. 53.

Also reviewed in Iron & Coal Trades Review, London, July 9, 1915, p. 46.

Hager, Dorsey. Practical oil geology; the application of geology to oil field problems. New York: McGraw-Hill Book Co., Inc., 1915. 149 p. illus. 1. ed. 12°.

"This is an excellent little book on the application of geology to oilfield problems, somewhat similar in scope to E. H. Cunningham Craig's Oil Finding,' but written from the American point of view. The author has had extended experience in the California fields especially, and is engaged in active practice as a consulting geologist in Western North America. The book is concise, but clear, and illustrated with numerous sketches. It includes working diagrams and tables, and such general matter as is appropriate to the main purpose. The various chapters cover the origin and properties of petroleum, stratigraphy and structure as relates to oil, methods of prospecting and mapping, locating drill holes, relations of geology to drilling, applications of geology to development of properties, a study of water problems, and some special cautions. There are not many books on petroleum and this little volume will fill a gap in many a working library.” — From a review in the Mining Magazine, London, July, 1915, p. 53. Also reviewed in Mining Journal, London, June 26, 1915, p. 470.

Nicolls, William Jasper. Coal catechism.

J. B. Lippincott Co., 1914.

249 p. 16°.

Philadelphia:

A useful set of questions and answers by the author of "The story of American coals." Covers origin, geography, production, classification, prospecting, development, transportation, preparation, coking, power, and uses.

"Perhaps some people do not object to the catechism as a way of imparting information. This is a matter of taste, and a book is valuable or not according to the material it contains and the judgment used in its selection regardless of the manner of presentment chosen. We think the book stands the test well, seeing that it is intended for 'that great number of intelligent readers who have no technical training. It is in nearly every case accurate as it can be made without entering exhaustively into details." — From a review in Coal Age, New York, April 24, 1915, p. 737-738.

*Park, James. A text-book of practical assaying; for the use of mining schools, miners, and metallurgists. Revised and enlarged from third New Zealand edition. London: C. Griffin & Co., Ltd., 1914. (Griffin's mining

series.)

342 p.

illus. 12°.

A compact, well arranged little treatise dealing with the_common metals, chlorine, sulphur, rare earths, arsenic, phosphorus, cyanides, Portland cement, rocks, coals, soils, manures, oil shale, water, alcohol, and milk.

"Any person with a small knowledge of certain reagents and materials could learn assaying from this book without trouble, owing to its practical style." - From a review in Mining & Scientific Press, San Francisco, April 10, 1915, p. 607. Also reviewed in Mining Magazine, London, April, 1915, p. 237.

*Rodenhauser, Wilhelm. Ferromangan als Desoxydationsmittel im festen und flüssigen Zustand und das Ferromanganschmelzen. Leipzig: O. Leiner, 1915. illus. 8°.

127 p.

"Engineer Rodenhauser is well known to steel metallurgists for his work on the Roechling-Rodenhauser induction furnace. This timely book...is concerned principally with the latest improvement in manufacturing steel the addition of molten ferromanganese. It describes the properties and function of ferromanganese, the various means for melting it, and the advantages resulting from adding it melted to the steel. The melting is described in detail as carried on in Rombach,

Keller, Girod, Heroult, Nathusius and Roechling-Rodenhauser furnaces. We are sorry to see the Renner felt furnace omitted, for a good description of its usefulness for this very purpose was published by the Iron and Steel Institute last year. Notwithstanding this omission, it is a book which every steel maker ought to read." - From a review in Metallurgical & Chemical Engineering, New York, July, 1915, p. 18.

Also reviewed in Stahl und Eisen, Düsseldorf, June 3, 1915, p. 598–600.

285 p.

table.

Thomson, Francis Andrew. Stamp milling and cyaniding. New York: McGraw-Hill Book Co., Inc., 1915. illus.

8°.

"This is an excellent little work on a subject which has been covered many times by other authors. One would think that unless something new had been developed there would be hardly any scope for another book. The concise manner in which it has been arranged gives the volume its chance. Strictly speaking it is a compilation. The author, who is at the State College at Pullman, Washington, admits this. He has drawn freely from the leading journals in the United States, and one in England, which devote most of their space to ore treatment. Manufacturers of machinery for this purpose helped illustrate the book by supplying photographs of their products." - From a review in Mining and Scientific Press, May 15, 1915.

Also reviewed in Engineering News, New York, June 17, 1915, p. 1177; in Mining Magazine, London, June, 1915, p. 361.

*White, Charles Henry. Methods in metallurgical analysis. New York: D. Van Nostrand and Co., 1915. 356 p. illus. 12°.

General in scope and represents American practice. Supplemented by a list of helpful references. Also treats of recent practice in such subjects as copper in steel, cyanogen in commercial cyanide, gas analysis, testing of uranium ore, and examination of boiler water.

Painting, Gilding, etc.

Scott-Mitchell, Frederick. Practical gilding, bronzing. London: The Trades Papers Publishing Co., 1915. 178 p. illus. 12°. ("The decorator" series of practical handbooks. no. 11.)

Practically the second edition of work published in 1905. Revised with new material on glass embossing, gesso and relief decoration, and mosaic work, with a scale of charges.

Reviewed in Journal of the Royal Society of Arts, London, July 23, 1915, p. 803. *Wenzel, Franz Jos. Handbuch für Maler; praktisches Nachschläge- und Auskunftspuch über das gesamte technische Wissen des Dekorationsmalers, Anstreichers, Lackierers, Vergolders und verwandter Berufsangehöriger. Von F. Wenzel... Leipzig: Jüstel & Göttel, 1914. 411 p. 2. ed., rev. & enl.

8°.

A comprehensive reference book by the editor of the Maler-Zeitung, Leipzig. A wealth of practical information about_tools, materials and technique. Has 39 pages of index; also several glossaries. Lacks illustrations.

Naval Architecture

Hobbs, Edward W. Model power boats, a complete manual on the designing, building, and running of all kinds of model selfpropelled boats, steam, petrol, and electric. London: P. Marshall & Co. [1915?] 338 p. illus. 8°.

The making of these craft is a scientific and technical matter and the sailing of them a recognized sport. This attractively illustrated work should be of great educational value, both theoretically and practically, to all boat loving boys.

p. 324.

Reviewed in the Marine Engineer & Naval Architect, London, June, 1915,

*Hovgaard, William. Structural design of warships. With 23 tables, 6 plates, and 186 illustrations. London: E. & F. N. Spon, Ltd., 1915. illus.

383 P.

diagrs., pl., tables.

4°.

Includes also the structural design of torpedo boats and submarines. "The author of this valuable work is professor of naval design and construction in the Massachusetts Institute of Technology, and was formerly a commander in the Royal Danish Navy, so that not only is the matter contained in the book well digested, being the text of his lectures of thirteen years, but it is the dictum of a man who has seen service, and is not mere desk-work. As a general knowledge of the theory of naval architecture is pre-supposed, the author is able to deal with the higher class of work. The first half of the book treats of the principles underlying the structural design of warships, and a great deal of matter has, for the first time, been collected in a book written in the English language.. The second half of the book is devoted to practical construction, and special attention is given to such things as the strengthening of plates in which manholes have been cut."-From a review in the Marine Engineer and Naval Architect, London, April, 1915, p. 275-276.

Sewage and Sewage Disposal

Daniels, Francis E. The operation of sewage disposal plants; a manual for the practical management of sewage disposal works, with suggestions as to improvements in design and construction. Illustrated from photographs by the author. New York: Municipal Journal, 1914. 136 p. 8°.

Compilation of material which originally appeared in the Municipal Journal. Discusses grit chambers, screens, tanks, filters, disinfection, chemical precipitation, electrolytic treatment, trade wastes, testing stations, and records of operation.

"The author of this little book, as director of the department of water and sewerage inspection of the State Board of Health of New Jersey, has had for years an excellent opportunity to study the management, or perhaps more properly the mismanagement, of sewage disposal plants; and the volume he has written... possesses more real value for sewage works managers and city officials than any book on the subject which has appeared in a long time."—From a review in Engineering Record, New York, May 1, 1915, p. 563.

Also reviewed in Engineering News, New York, March 18, 1915, p. 535.

340 p.

Kershaw, George Bertram de Betham. Sewage purification and disposal. Cambridge: University Press, 1915. diagr., tables. 8°. (Cambridge public health series.)

Concisely presents recent practice with bibliographical references and complete author, subject, and place indexes. Has a chapter on the disposal of trade wastes. Author has been for sixteen years engineer to the Royal Commission on Sewage Disposal.

"The work is useful, not so much because it contains many new facts as because it is the latest comprehensive review of the subject...and also because, besides epitomizing the best of the voluminous contents of the reports of the Royal Commission, it takes into account both American and German studies and practice.”—From a review in Engineering News, New York, June 17, 1915, p. 1175.

Also reviewed in Engineering Record, New York, April 24, 1915, p. 531; in the Engineer, London, June 25, 1915, p. 633.

Koller, Theodor. The utilization of waste products; a treatise on the rational utilization, recovery, and treatment of waste products of all kinds. Translated from the second revised German edition by a technical chemist... Second revised and enlarged English edition. London: Scott, Greenwood & Son, 1915. 327 p. 8°.

illus.

Briefly treats of the practice in many lines of manufacture, covering 59 subjects. Reviewed in India Rubber World, New York, June 1, 1915, p. 499.

*Matthews, Ernest Romney. Refuse disposal. A practical manual for municipal engineers, members of local authorities, &c. By Ernest R. Matthews... London: C. Griffin & Co., Ltd., 12°. (Griffin's scientific text

1915.

books.)

160 p.

illus.

Describes the various modern methods of collection and burning, emphasizing British practice. Has chapters on chimneys and on vacuum cleaning. Well illustrated with plates and halftones.

Textiles

221 p.

Balls, W. L. The development and properties of raw cotton. London: A. & C. Black, 1915.

illus. 12°.

"The book is fully illustrated with photographic engravings, drawings, and diagrams, amply elucidating the text, which is itself clearly and attractively set forth, indications as to the various topics under discussion being provided as marginal annotations. Altogether the production is a notable one, and the policy that has allowed of its issue at such a reasonable price must be warmly commended." -From a review in the Textile Mercury, May 29, 1915, p. 422.

Also reviewed in the Textile Recorder, Manchester, June 15, 1915, p. 62.

Beaumont, Roberts. Woollen and Worsted; the theory and technology of the manufacture of woollen, worsted, and union.