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RECHERCHES MINIERES Guide Pratique de Prospection et de Reconnaissance des Gisements it lUsage des Inge nieurs et des Propri taires de Mines. Suivi de Notions Abr g s sur lEm ploi dans lIndustrie des Min raux les plus Usuels. Pat F lix Colomer, Ingenieur des Mines. Paris: Veuve Ch. Dunod, Editeur. 1901. Octavo. Pp. 270. Price 1.75. TASCHENBUCH DER DEUTSCHEN UND DER FREMDEN KRIEGSFLOTTEN. Mit teil weiser Benutzung amtlichen Mate rials. III. Jahrgang. 1902. Her ausgegeben von B. Weyer, Kapitan-leutnant a. D. M nchen: Verlag von .1. F. Lehman. 1902. Pp. 304. 16. Price 75 cents. We have had occasion to comment. favorably upon the excellent naval handbools which Capt. Weyer published last year. The little book before us is, if an.vthing. better than last years production. So far as accuiacy of in formation goes and general tiustworthiness, it cannot be denied tllat the woi-k is fully as valuable as the larger naval annuals. Of pai--ticular service are the excellent tables which have been compiled for the purpose of show ing the relative efficiency of ordnance of the various navies. Interesting articles on naval topics will be found in the latter part of the book. Of these, a discussion of Englands ability to maintain her preponderance of power over two combined Euiopean navies is, per haps, the most noteworthy. THE PRINCIPAL METHODS OF ORGANIC CHEMISTRY. By Ludwig Gatter mann, Ph.D. Translated by William D. Schober, Ph.D. New York: The Macmillan Company. 1901. 16mo. Pp. 360. Price 1.60. The author is piofessor in the University of Fieiberg, and this book was written prim-aiily on account of the private needs of the author. The work has proved so satisfactory for use in general that it has very wisely been transla ted by Dr. Schober, who is instruc tor in oiganic chemistry in Lehigh University. Organic chemistry is much simplified by woi-ks of this nature. The boOK is admirably illus trated and is well printed. LiNEAR DRAWING AND LETTERING FOR THE BEGiNNim. By J. C. L. Fish. Palo Alto, Cal.: The Author. 1901. Ob long 12mo. Pp. 65, 4 sheets of fig ures. The author states that a faithful following of the directions given in the book will. it is hoped, furnish the student enough training iii the use of drafting instruments to enable him to construct accurate pencil drawings with the clear lines and do legible lettering. The dlrec-tions are very common sense, and with the aid of a blankbook for lettering, it is possible for the student not only to learn to draw, but also to make neat letters.
