Quantitative Analysis. (Popoff, Stephen)

student may he expected to grasp the principles of chemical calculations with less individual instruction. VILLIERS W. MELOCHE. Quantitative Anelysis...
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VOL.4, No. 6

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narily met with in analytical work. Problems to he worked by the student are included. Part 111, The Theory of Analytical Chemistry, 177 pages, gives in a simple manner the fundamentals of physical chemistry which are essential for a proper understanding of the methods involved in analytical procedure. I n Part IV, Special Topics, 87 pages, electrometric titrations, colorimetric methods, and iron and steel analysis are taken up. Part V contains various tables necessary in analytical work. Each chapter is marked with a subscript indicating the type of student for which i t is intended. Of a total of 69 chapters, 36 are intended for beginning students, 38 for the more advanced and 27 for the graduate student. Only three chapters, those mentioned in Part IV, arc for graduate students exclusively. I n addition to the section on calculations, questions and problems, together with references, are given a t the end of each chapter. Such subjects as the analysis of fuels, water, oils, and assaying are not treated. While certain procedures must of necessity be omitted and the number of optional methods limited, the hook as a whole is very well written and the subiect matter is presented in a clear and concise manner. Quantitative Anelysis. STEPHENPOPOPP. Those who have used the first edition will Ph.D. P. Blakiston's Son & Co., Phila- be pleased with the improved physical delphia. Second edition, 1927. xix appearance of the book as well as the 559 pp. 68figures. 1 5 x 2 3 cm. $4.00. changes and additions in subiect matter. D. C. LICHTENWALNER This edition has been considerably enlarged by the addition of twelve new chapters and many of the methods of proce- Physico-Chemical Geology. R. H. RASTALL. Longmans, Green & Co , New dure have been changed t o give greater York City, 1927. vii 248 pp. 13.5 orecision. The book is divided into four X 21.5 cm. $6 00. parts. Part I , Laboratory Directions, As its name implies, this book is an coverina 258 pages, contains a discussion of the balance, apparatus, and calibra- attempt t o show how the applicatio~lof tions and methods for analytical proce- the principles of physical chemistry t o the dures, together with an explanation of problems of geology has aided in correlatthe theory involved. ing and organizing an immense mass of Part 11, Calculations, covering 50 pages, data. The attempt is a success. Dr. takes up Errors and Computations and Rastall is t o be congratulated an the exthe methods of solving problems ordi- cellent fashion in which he has handled the

way t o more difficult problem work in physical chemistry and chemical engineering." The second edition follows the same general arrangement as the first edition. Chapters and problems on electrometric titrations and on equilibrium constants have been inserted. The descriptive matter has been expanded in several instances, especially in the section devoted to precision measures, calibration of weights, electrolysis, and indicators. Many -proMems have been added and the miscellaneous problems have been rearranged and classified under descriptive headings. Answers have been given to a number of problems which represent the various types of calculations and many problems have been given without answers. This arrangement benefits student and instructor alike inasmuch as those problems with answers serve as a basis for self instruction and those without answers offer material for home assignments and quizzes. The text represents an advance in the teaching of quantitative analysis since it offers a clear discussion of type problems from which the student may he expected t o grasp the principles of chemical calculations with less individual instruction. VILLIERSW. MELOCHE ~

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