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JOURNAL OF CHEMICAL EDUCATION
American literature in this section of the hook. It is interesting t o recall in this connection that the first resolution of an inorganic complex salt was carried out by an American student working in Werner's laboratory. Cornell's department of chemistry is t o he congratulated on its choice of a kcturer and t o he thanked for sharing the benefits of its Baker Lectureship with other chemists. Professor Jaeger could not have left a more valuable souvenir of his visit to this country. LAWRENCEW. BASS
JANUARY. 1931
he is interested in.
The fifth chapter covers the theorems of Taylor and MacLaurin regarding series. Fourier series are mentioned. A necessarily hrief discussion of differential equations is presented in the sixth chapter. The addition of a chapter (Chapter 8) on the theory of errors is of course quite in order in a hook meant t o he used by experimental scientists. The treatment seems adequate for an introduction t o the subject. Again i t is felt that this interesting volume can be made even more useful by the inclusion of many more problems.
Einfiihrung in Die Mathematik Fiir The Metallurgists and Chemists' Handhook. Compiled by DONALDM. LIDBiologen und Chemiker. LEONOR DELL,Member of Weld & Liddell, econoMICHAELIS, University of Berlin. Julius Springer, Berlin, 1927. vi f mists and engineers; member M.M. S.A., A.I.M.E., Inst. of Metals (Brit.). 313 pp. 116 figs. 14 X 22 cm. Rm. pp. 10.5 X 17.25 cm. $5.00. Third 16.50; hound, Rm. 18.00. edition, McGraw-Hill Book Co.. Inc., The author introduces the subject by New York City, 1930. vii f 847 PP. a brief review of a few theorems of ge10.5 X 17.25 cm. $5.09. ometry and algebra; the trigonometric The third edition of this excellent handfunctions are mentioned and series are defined. The second chapter covers the book, although enlarged by one-third over field of analytical geometry and the gra- the 1918 edition, still fulfils its purpose of phic representation of the usual analytical supplying t o the metallurgist and chemist and transcendental functions. I n the the most necessary physical and chemical next two chapters the author presents the tables in a form so compact t h a t i t may concepts of the differentialand integral cal- he carried by the traveler or prospector culus in the usual fashion as found in any without undue weight added to his kit. I n addition t o a complete index the book of the numerous books on the subject. However, the attempt is made t o connect is divided into twelve sections: Mathethe subject matter of mathematics with matics; Price and Production Statistics; the fields of chemistry and biology by pre- Physical Constants; Chemical Data: senting and solving problems taken from Sampling, Assaying, and Analysis; Ore Fuels and Rethese sciences. It is felt t h a t these proh- Dressinn: -. Cyanidation: l and lems are not sufficiently numerous. fractories; ~ e c h a n i c a Engineering Every one should he in complete agree- Construction: General Metallurgy; Orment with the author's idea that students ganic Chemistry; First Aid. The mathematical section covering fifty of chemistry and biology should he trained most thoroughly in certain branches of pages includes tables of weights and measmathematics. The best way no doubt t o ures and money both U. S. and foreign. teach the use of mathematics lies in its fundamental equations in algebra, trigoapplication to actual problems. It is nometry, geometry, and calculus, various cubes, etc., . hoped that the author will he later able tables of interest.. sauares, t o enrich his volume b y many more er- and the usual trigonometric tables. amples taken from the field of science that Metallurgical price and production sta-
VOL.8,No. 1
RECENTBOOKS
tistics is most complete, the monthly prices of t h e most common metals covering periods of twenty years and production throughout the world for five years. Physical constants of the inorganic compounds is rather brief, about 500 elements and compounds being included instead of 3000 to be found in a typical chemical handbook. "Chemical Data," a section of 90 pages, deals with the structure of the atom, the properties of the common elements, qualitative analysis of the metals and acids, and tables of chemical properties. Following this the essentials of sampling, fire-assaying, and metallography are covered as is the quantitative determination of the common elements in table form. Ore dressing is quite complete with quantities of data on the practice of crushing, screening, concentrating, thickening and flotation. A brief description of the theory and practice of cyaniding follows with considerable operating data. "Fuels and Refractories," primarily of interest t o the furnace man, describes the properties of the major fuels and refractories used in metallurgical and chemical operations. Mechanical engineering data on construction is included with tables concernmg the handling of solids, liquids, and gases. The largest section of the book is devoted t o general metallurgy. The constitution of about 1300 alloys is given and various data on reduction and refining of the common metals, properties of slags, mattes, etc. I n the final section a few pages are given t o the physical and chemical constants of the mare common organic compounds, followed by instructions in first-aid treatment. The physical data of the chemical campounds, both organic and inorganic, are so brief t h a t from the chemical point of view the book will not appeal t o the chemist because of the more extensive handbooks available. For the metallurgist the chemical tables are quite suliicient. Written from the metallurgist's point of view this volume, containing a most complete accumulation of facts of metallurgi-
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cal physics and chemistry in table form. will he of inestimable value t o the man primarily a chemist and secondarily a metallurgist. CROSLEYF. BAKGR W I ~ S OM NB U O R ~ LABOR*TORY L T U s T b COLLBEB, MABS.
MISCELLANEOUS PWLICATIONS Doctorates Conferred in the Sciences by American Universities, 1929-30. ComJ. piled by CALLIEHULLand CLARENCE WE-. Reprint and Circular Series of the National Research Council, No. 95. National Research Council, Washington,D. C., 1930. 49 pp. 17 X 25 cm. $0.50. Victor Directory of Film Sources. Victor Animatograph Corporation, Davenport, Iowa, Second edition, Dec., 1930. 48 pp. 14 X 19.5 cm. Gratis. The purpose and scope of this volume is adequately described in the foreword herewith quoted: "Although the need has long existed, this is believed t o be the first attempt ever made t o provide a complete, accurate listing of all known sources of 16-mm. films exclusively. 35-mm. (professional standard) films are not listed in this directory as i t is intended only far the benefit of users of 16-mm. motion picture projectors. "The Directory is being published entirely a t the expense of the Victor Animatograph Corporation. No charge has been made for the listings, and distribution is free to owners and prospective owners of 16-mm. equipments. The information contained herein may be accepted as being strictly impartial, as the Victor organization does not produce or distribute films of any kind, and is not financially interested in any producing or distributing companies. "The Directory should prove highly accurate as great care has been exercised in its compilation. The 6rst edition, which wm published in May, 1930, contained surprisingly few errors. This, The First Revised Edition, has been so carefully
