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Recent Books
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A Brief Introduction to the Use of Beilthe complicated Prager-Jacobson dassistein's Handbuch der Organischen fication method. T o the student of orHAMLINHUNTRESS, ganic chemistry the volume is recomChemie. ERNEST Ph.D., assistant professor of organic mended for thoughtful consideration and chemistry, Massachusetts Institute of study. Time spent in mastering the Technology. Cambridge, Mass. John classification system will he saved many Wiley and Sons. Inc., New York City, times over through increased facility in 35 pp. 15 X 23 an. the use of Beilstein. 1930. viii $1.00. The pamphlet is hound with a paper hi^ little based on partof a cover, hut print and paper are good. The contribution, clearly h course of lectures given at the ~ ~ work ~is a valuable ~ ~ ~ setts Institute of Technology for students presenting a and specializing in chemistry, is "a brief NATEANL. DRAKE explanation of the method of classification U NCOLLHOB WE~SIN 08 P mMARYLAND r , Mn. of organic compounds used in the fourth edition of -Beilstein's Handbuch der .-~.~ ~Organischen Chemie." It constitutes the Atoms, Molecules, and Quanta. ARTHUR most complete exposition t o be found in EDWARDRUARK, Ph.D.. Physi~ist. English of the necessarily rather involved Mellon Institute of Industrial RePrager-Jacobson classification system. search, lecturer in physics a t the UniChapter I, devoted t o an explanation versity of Pittsburgh, and HAROLD of the scope of the Handbuch, is followed CLAYTON UREY, Ph.D., associate proby four chapters setting forth the various fessor of chemistry a t Columbia Unid e s which govern the system; and the versity. Internntional Series i n Piiyrfinal chapter contains illustrations of the ics. l? K. RICHTMYER,Consulting method of finding a particular compound, Editor. McGraw-Hill Book Company, given its structural formula, provided, of Inc., New York City, 1930. xviii course, that the substance is included in 790 pp. 15 X 23 cm. $7.00. the published volumes. .In this final The appearance of this treatise on the c h a ~ t e ris t o he found also a survey of the volumes of Beilstein already published, structure of matter is truly a milestone in the progress of American chemical literawith publication dates and contents. A classification system which is t o ture. I n the words of its authors, "This include 200,000 entries, the number con- book was written with a double purpose. templated for the fourth edition of Beil- It is intended to serve the needs of those stein, is necessarily very complex, hut Dr. who approach the fascinating study of Huntress has set forth in this work in a atomic and molecular structure for the clear and logical fashion the various mles first time, and portions of i t are therefore of this complicated system. Further- written in full and simple style for these more there are few errors in formulas, newcomers. It alsa seeks to serve workers in the field with an up-to-date account of tahles, or tent. For the student specializing in other the laws of quantum theop, and with a than organic chemistry, the pamphlet will general account of important experibe of little interest, for such a student will mental researches in the field." Any one probably prefer t o waste a little time on a t all familiar with the manifold developthose rare occasions when he consults ments in the field of atomic structure will Beilstein, rather than t o try t o master agree that the authors set themselves a 1447
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