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Each essay, except that by M. Guigoz which was given as a lecture, is followed by a short bibliography. Design and Analysis of Industrial Ex periments. Owen L. Davies, Editor, xiii + 636 pages. Hafner Publishing Co., New York, Ν. Υ., 1954. $10.
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40 A
This book deals with the applications of modern statistical methods to the de sign and analysis of experiments in chemical and allied fields of research. It is a sequel to "Statistical Methods in Research and Production," which set up the elements of statistical analysis and is a useful introduction to the pres ent volume. This latest book has been written principally for the research worker in the chemical industry with a limited knowledge of mathematical statistics, but will probably be helpful to others in the field. Mass Spectrometry. A. J. B. Robertson. 135 pages. Methuen and Co., Ltd., London, and John Wiley & Sons, Inc., New York, Ν. Υ., 1954. $2.00. Reviewed by FRED L. MOHLBR, Na
tional Bureau of Standards, Washing ton, D. C. This little volume gives a survey of the principles of operation of the con ventional magnetic field mass spec trometer and its applications to research in molecular physics, to chemical anal ysis of gases, and to isotope analysis. The emphasis is on the measurement of ionization potentials and appearance potentials and the interpretation of re sults. While the descriptive matter is kept to a bare minimum, mathematical relations and theoretical background are presented fully and carefully'. Métodos
Analiticos
de
Alimentos.
Silvio Crespo. 140 pages. Silvio Crespo, 11A 1120 North 66th St., Philadelphia 31, Pa., 1955. $3.00. This paper-bound book is written for the analytical chemist of the Spanish-speaking world. In it, the author has attempted to present detailed articles on practical methods of food analysis. International Journal of Abstracts on Statistical Methods in Industry. Vol. 1, No. 2. Grant I. Butterbaugh, Editor, vii + 40 pages. International Statistical Institute, 2 Oostduinlaan, The Hague, Netherlands, 1954. Annual subscription (three issues) $2.50. Single copies, $1.00. This paper-bound book contains 120 abstracts of recent papers on statistical methods in industry. Printed on heavy paper, the abstracts, which are numbered, can be cut and filed for easyreference. ANALYTICAL
CHEMISTRY
