NEW BOOKS more and more frequently. The last chapter (Number 10), which constitutes almost one-fourth of the book, utilizes the theory which has been developed to explore the electronic structures of selected inorganic complexes. Compounds of the first series of transition metals are discussed in some detail, with only brief attention to those of the second and third series. Inorganic chemists will find this chapter of particular interest, but they will
have to read at least parts of the earlier chapters in order to understand this one. Ballhausen's book represents a worthwhile contribution to the rapidly growing literature of inorganic chemistry, and it deserves wide study. It should, perhaps, be added that the value of the book is greatly enhanced by the inclusion of almost eight hundred and fifty references, of which nearly one half are in Chapter 10.
Actual laboratory application showing Sargent Constant Rate Burette with Magnetic Stirrer, pH REC O R D I N G A D A P T E R , and Model S R Recorder.
For Recording pH
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• LOW COST
Extreme resistance in electrode or solution is completely compatible with Sargent or other high quality potentiometric recorders through this new instrument, which transmits potential without distortion but converts impedance to lower values. An electrometer circuit—stable, linear and of high resistance—provides smooth, non-interrupted conversion with output at maximum sensitivity approximately 1 millivolt per pH unit. Adjustable sensitivity and variable displacement give flexibility in setting pH range of the recorder. Accommodates standard commercial glass and reference electrodes. For pH titration, the Sargent Constant Rate Burettes, which may be synchronously driven from Sargent Recorders, are useful adjuncts. S-72172 pH ADAPTER-Sargent Recorder. Without electrodes 1170.00 Designed and Manufactured by E. H. Sargent & Co. Write for Bulletin RA E.H. SARGENT ft CO.,4647 W.FOSTER AVE.,CHICAGO 30,ILL
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SARGENT SCIENTIFIC LABORATORY INSTRUMENTS • APPARATUS • SUPPLIES • CHEMICALS Circle No. 14 on Readers' Service Card
66 A
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ANALYTICAL CHEMISTRY
Spectroscopy in the Metallurgical Industry. L. Bovey, editor, vii + 90 pages. Hilger & Watts Ltd., 98 St. Pancras Way, London, N. W. 1, England. 1963. £1. 10s. Paperbound. This book consists of papers contributed to the Buxton Symposium held in July 1962. This informal symposium was arranged to allow the participants to exchange and compare information on experimental spectroscopic techniques. Session I includes the following: x-ray fluorescence analysis of copper alloys, J. A. F. Gidley; exciting x-ray spectra using low-voltage electrons, J. G. M. Fox; x-ray fluorescence in metallurgical research, K. M. Bills; and solidsource mass spectrometry, J. F. Duke. Session II contains: steelworks control analysis, L. Gwilliam, stainless steel production control analysis, C. Frith; the use of a vacuum spectrometer for analysis of high silicon steels, J. R. Brown and D. Wilkinson; and emission spectroscopic analysis of precious metals with special reference to the London Assay Office, J. S. Forbes. Session III consists of a paper by D. Jukes on spectroscopic control of nickel alloy production.
Ore Microscopy. Eugene N. Cameron, xii + 293 pages. John Wiley & Sons. Inc. 440 Park Ave.. South, Neic York 16, N. Y. 1961. 810.50. Reviewed by Fred W. Farwell, American Cyanamid Co., Stamford, Conn. The subject of ore microscopy is concerned with the microscopical study of the relatively opaque minerals and their textural relations, primarily as seen in polished section by reflected light. This volume gives an extremely able presentation of the principles and techniques of ore microscopy, particularly those used in mineral identification. The emphasis on the determination of quantitative properties will stimulate further advances in this field. The final chapter (30 pages) is devoted to the applications to the study of ores and mill products. Although designed as a college text, this book will be welcomed b\ r every practicing ore microscopist. It provides a unique review of new quantitative optical techniques which should also be of interest to microscopists outside of the fields of mineralogy and economic geolog\r. Chapter 5, "The (Continued on page 71 A)
