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hwk, such as the Introductory Lecture. the chapters on "Origin of X-Ray Spectroscopy," "The Work of Moseley and His Fundamental Law Governing X-Ray Spectra," "The Discovery of Hafnium and I t s Separation from Zirconium," and most of Part 111. These portions may however be read understandingly without bothering about the more technical sections. This volume offers a fine illustration of the way in which the three sciences of chemistry, physics, and geology are interrelated. Part I is chiefly physics, Part I1 chemistry, and Part 111 geology. It s ~ e a k swell for the author's ability that he can lecture and write so authoritatively in all three fields (and in a foreign language, too)! There are quite a few minor mistakes. most of them probably due t o inadequate proof-reading. The frequent use of "niobium" in place of "columbium" might be confusing to some readers. More important are the incorrect plotting of the "atomic radius" of hafnium, making it appear less than that of zirconium, in Figure 79, and the incorrect values of the atomic volumes of hafnium and zirconium in Table XXI. Figure 83 not only is unintelligible without some explanation of the meaning of the symbols used but i t represents a very improbable structure from the standpoint of aystal structure theory. (The structure analysis is by no means conclusive; cf. Ewald and Hennam, "Strukturbericht," p. 454.) I n general the illustrations are well chosen, well made, and well reproduced. MAURICEL. HUGGINS
I n the 1931 volume the 1930 chapter on "Kinetics and G a s Mixtures" become5 "Kinetics of Homogenerous Reaction"; "Catalysis" is limited to "Contact Catalysis"; "Electrochemistry" takes the place of "Application of Electrochemistry" in the usual alternation; "Soils and Fertilizers" has been split into two separate chapters; and "Paper" is expanded t o cover "Cellulose and Paper." Chapters which appeared in 1930 but are omitted in the present volume are: "Physical Methods in Analytical Chemistry''; "The Rare Earths"; "Carbohydrates"; "Cement and Concrete"; "Chemistry of the Silicates"; "Synthetic Yarns"; "Explosives"; "Azo Dyes"; and "Anthraquinone Dyes and Intermediates." New chapters are: "Radium and Radioactivity"; "Analytical Chemistry"; "Properties of Compressed Gases"; and "Leather." Some of the "surveyors" are contributing excellent critical reviews within the space limitations imposed upon them: many are satisfied to act as compilers of abstracts. &o RErNMmn, Editor MISCELLANEOUS PUBLICATION The"~istoryof the Municipal University in the United States. R. H. ECRELBERRY,Assistant Professor of History of Education, Ohio State University. U.S. Dept Interior, Ofice of Education. Bulletin, 1932, No. 2 . U. S. Government Printing Office, Washington, D. C. (For sale by the Superintendent of Documents. Washington, D. C.) viii f 213 pp. 15 X 23 cm. $0.20.
The specific municipal universities discussed in this bulletin are: The College of Charleston, The University of Louish u a l Survey of American Chemistry. ville, The College of the City of New York, VolumeVI, 1931. Edited by CLARENCE Hunter College of the City of New York. J. WEST under the auspices of the The Board of Higher Education and Division of Chemistry and Chemical Brooklyn College, The University of Technology of the National Research Cincinnati. The University of the City Council. Published for the National of Toledo, The Universih of Akron, The Research Council by The Chemical Municipal Colleges of Detroit, The Catalog Co., New York City, 1932. Municipal University of Wichita, and The Municipal University of Omaha. 573 pp. 13 X 21 an. 54.50.
