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JOURNAL OF CHEIUICAL EDUCATION
table is the largest in the book. I t covers forty-five pages. Table 111 consists of Metallo-Organic. Gravimetric Factors and Their Logarithms. The same arrangement is used as in Table 11. This table contains, in addition t o data previously mentioned. reference numbers citing the literature which deals with the use of the metallaorganic compounds in analytical work. The book contains nine other tables as follows: Table IV. Factors for Indirect Weighing. Table V. Factors for Indirect Analyses. Table VI. Miscellaneous Weight Conversion Factors. Table VII. Inorganic Factors for Normal Acids or Bases. Table VIII. Organic and Metallo-Organic Factors for N m a l Acids or Bases. Table IX. Inorganic Factors for Normal Oxidizing or Reducing Agents. TahleX. Organic and Metallo-Organic Factors for Normal Oxidizing or Reducing Agents. Table XI. Factors for Various NormaL Volumetric Reagents. Table XII. Logarithms of Numbers (five place). The tables are followed by a short chapter containing instructions for their use. I n some cases the individual tables are followed by explanatory notes. A considerable portion of the information contained in these tables has not been previously gathered together in one unit. This is especially true of those dealing with the metallo-organic compounds. The arrangements of the material within the tables and the order in which the tables follow each other are well chosen. This book should be a valuable aid t o analysts and teachers of analytical chemistry. H. W. B R ~ A K E R KANSAS STATECOLLBCB MANWTAN. KANSAS
Chemical Calculations. J. S. LONG.Ch.E., M.S., Fh.D., Professor of Inorganic
MAY,1932
Chemistry, and H. V. ANDERSON, B.Ch.E.. M.S., Associate Professor oi Chemistry, Lehigh University. Third edition. McGraw-Hill Book Co., Inc., New York City and London, 1932. ix f 259 pp. 16 Figs. 14.5 X 21 cm. $1.75. This is a third edition of a book published in 1924and reviewed in the JOURNAL oa CHEMICAL EDucATroN for January, 1929 (p. 177). The book now contains 833 problems. The chapter on molecular weights has been expanded by adding explanations and illustrations of the Victor Meyer, boiling-point, and freezing-point methods. Equivalent weights and normal solutions are discussed in a single chapter. The chapter on volumetric analysis hss been enlarged by examples on the inter-relation of equivalency and normality concepts. New material has been added on the solubility product, and problems on p H have been included in the chapter on reversible reactions. The chapter on gas analysis has been revised to conform to the latest analytical procedure. J. H. REEDY
ONIYBRSIIYOP I ~ I N O I B UesAN*, ILLINOIS
Faraday. E. W. ASHCROFT, The British Electrical and Allied Manufacturers Association, London. 1931. 133 pp. Portrait frontispiece. 14 X 21 cm. 7s. 6d. This is aood bioma~hv. The book is . . . an accountof the life and work of Michael Faradav based upon his letters. his oublished papers, and the biographies by Tyndall and Bence Jones. I t succeeds. without being a "keyhole biography," in conveying an idea of Faraday's inner motives, of the unity of his character and of his life. "There are very few men's lives that could adequately be told by selection from their private letters and opinions. We live with our awn illusions and rare is the man who is accepted by posterity, whether posterity is a world-wide audience or a
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generation of private friends and relations, in his own terms. Faraday, however, is such a man. His life and its actions provide no ground for interpretation in terms other than those he employed. His enceedingly simple and unquestioning belief in the tenets of his religion appears strange in a man whose Life was passed in the exercise of intellectual discrimination. Yet his religious beliefs were never held as a conscious means of simplifying his mental powers: they were a sublimation of that part of his nature which could otherwise have harmed the exercise of those powers. "There is no key t o Faraday's life, no isolated grouping of thought and adion in the form of a conflict t o drive him to work for relief from that conflict. Everything in his lif-his birth, his religion, his marriage appear as expressions of a meat and simple nature. The reason Faraday as an old man retained the fresh enthusiasm, the simplicity and kindness of his youth was because, in the midst of every kind of intellectual and social triumph, his nature did not change nor acquire qualities or defects alien t o it. And in the crowning expresqion of his life, the discovery of the fundamental laws of eledramagnetism, the experimental philosopher is inseparable from the visionary. He had no need t o turn his mind into a passionless instrument; he perceived the human elements of imagination and intuition in the laws and phenomena he investigated." The book is handsomely printed with easily legible type on hand-made paper. But i t is a pity that the author is not given plainer a e d i t for a creditable piece of work. His name (or hers) does not appear on the title page. On the last page of the book, along with the names of the printing company and the typographer, the name of the author is given. TENNEY L. DAVIS MASSACBUS&~S I H S ~ T UOF T BTECINOLODY c ~ ~ a a m oMAssrcnDssns =.
Die Chemie in Jena von R o l 5 c k bis Knorr (1629-1921). (Chemistry a t Jena, from Kolfinck t o Knorr. 16291921.) DR. F m z CAEMNITIUS. Ver-
969
lag der Frommannschen Buchhandlung Walter Biedermann, Jena, 1929. 192 pp. Illustrated. 14 X 22 em. Price, unbound, about R.M. 7. This is a history of the teaching of chemistry a t Jena, and consists of two principal chapters containing biographies of the professors and covering respectively the periods when chemistry was important because of its services t o pharmacy and when chemistry was an independent study. These are followed by a history of the Chemical Institute of the University, and by tables indicating the dates of the professors and the courses which they gave It is t o be wished that there were similar books relative to other universities. The book contains portraits of Werner Rolfinck (1599-1673), Georg Wolfgang Wedel (1645-1721), Johann Adrian Slevogt (1653-1726). Johann Adolph Wedel (1675-1747). Hermann Friedrich Reichmeyer (1685-1744). Ernst Anton Nicolai (1722-1802). Johann Wolfgang Dobereiner (1780-1849). Heinrich W~lhelm Ferdinand Wackenroder (1798-1854). Eduard Reichardt (1827-1891). Johann Georg Anlorl Geulher (1833-1889), and Ludwig ~ n &(1859-1921).
