VOL. 8, NO. 8
RECENTBOOKS
Essentials of Quantitative Chemical A Laboratory Manual for Analysis. Colleges. WILaneD W. SCOTT,Sc.D., Professor of Chemistry, University of Southern California. The Chemical Publishing Co., Easton, Penna., 1931. 219 pp. 18 figs. 15 X 23 crn. viii $2.75.
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This is the second edition of the author's hook, the first edition of which was published in 1926 under the title "Inorganic Quantitative Chemical Analysis." The text has been revised so as to include mare of the fundamental chemical theory underlying the procedures involved in quantitative methods. Considerable new material has also been added. The book is designed for students of college grade who are beginning the study of ouantitative chemical analvsis and mav be lookmg forward to either chemical engineering or medicine and pharmacy a . their -..-..l.i..f-e wnrk -- -. The reviewer is glad t o note that the author of this hook chooses to introduce quantitative analysis by beginning with gravimetric rather than volumetric methods. He believes this t o be the logical as wcll as the correct psychological order, contrary to the present-day tendency to begin the subject with volumetric
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Followinr - a brief hut clear discussion of general procedures used in gravimetric analysis there is a very good selection of determinations beginning with the simpler and progressing to the somewhat more complex, keeping, however, entirely within the scope of the beginner's field. The second part of the book deals with volumetric methods grouped according to the generally accepted order as follows: neutralization, oxidation and reduction. iodimetric, volumetric precipitation, and colorimetric methods. Fallowing the section an volumetric analysis are several short chapters dealing briefly with wme of the newer and more specializedmethods of analysis. The questions and problems have been placed together in a section a t the end
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of the hook instead of being appended to each chapter separately, so as to make revisions with the main object of changing the questions and problems easier. The text of the procedures has the fundamental virtue of being clear and brief enough t o be comprehensible to the average student. At the same time enough theoretical discussion has been introduced t o stimulate the student to a desire to investigate the subject further. I n the opinion of the reviewer this book, supplemented by recitations and by discussions of the theoretical chemistry involved, is very well adapted to its purpose as a laboratory guide in quantitative chemical analysis for college students.
H. W. BEWEAKER STAT= COLLBCB MINAATTAN. KANBA.
KANSAS
Handbook of Chemical Microscopy. Vol. 11. Chemical Methods a n d Inorganic Qualitative Analysis. BMILEMONNIN CHAMOT,B.S., Ph.D., Professor of Chemical Microscopy and Sanitary Chemistry, Cornell University; and CLYDEWALTERMASON.A.B.. Ph.D., Assistant Professor of Chemical Microscopy. Cornell University. John Wiley & Sans. Inc., New York City, 411 pp. 818 figs. 15 X 1931. ix
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23 Cm. 54.50. This is the second volume of a twovolume publication, based on the senior author's "Elementary Chemical Microscopy" (1921). The first volume was concerned with the principles and use of microscopes and accessories, also the description of physical methods for the study of chemical problems. The second volume is primarily a handbook of microchemical qualitative tests, together with descriptive methods of technic and manipulation. The authors make no claim t o originality except with respect to a small numher of the methods presented. Like any work on analytrcal chemistry. it is largely a compilation of tests already wcll known to chemists. I t is the unique method of presentation and systematic
