BOOK REVIEWS radiation in the visible spectrum and their reaction on the human optic system have been discussed very nicely. The enperimentd basis of trichromatic colorimetry has been discussed very thoroughly and the C.I.E. system of measurement has been well defined. This hook is highly useful for t h o ~ ewho are interested in the qualitative and quantitative measurement of visual color. I t should be realized that this is not a book on absorptiometry which is very often referred t o as colorimetry by the chemists.
BUDDHADEV SEN Louisiana State Uniuersity Baton Rorrge
Quantitative Chemical Analysis
Leieester F. Hamilton, Professor af Analytical Chemistry, and Stepha G. Simpson, Associate Professor of Analytical Chemistry, both of Massachusetts Institute of Technologj-. 11th ed. The Macmillan Company, New York, 1958. xvi 566 pp. 74 figs. 16 tables. 1.5 X 21.5em. $5.85.
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The eleventh edition of this wellknown text is very similar t o the tenth [reviewed in J. CHEM.E ~ u c . ,30, 322 (1953)] but some changes have been made. I t is divided into the five main parts used in the tenth edition and the appendix contains the same general information. The authors have rearranged some of the material, expanded some of the discussions, and added a few new topics. A number of misprints that occurred in the previous edition have been corrected and certain definitions of terma (e.g., pH on page 103) have heen clarified. Chapter 20, Analysis of Nonferrous Alloy, has been oliminated as such in the present edition and the theoretical section dealing with electrochemistry is now a unit of Part I V on instrumental methods of analysis, while the experimental procedures in this chapter have been added to the chapter on Miscellaneous Determinations. Another example of rearrangement is the transfer of the discussion on crpression of concentrations of solutions from the chapter on General Directions for Volumetric Work to the chapter on Review of Some Basic Principles. Typical illustrations of expansion of material include a lengthier discussion of buffer solutions and of organic precipitants in analytical chemistry. The general outline (page 397) of the types of instrumental methods of analysis has been improved and expanded. The use of mercury (TI) oxide t o standardize hydrochloric acid solutions, some uses of EDTA in analvtical chemistrv., and coulometric methods of analysis are important additions to the eleventh edition.
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The "conatant-load" balance is discussed only briefly; its importance in industry merits a more extensive treatment. More illustrative problems on huffer systems are in order and the calibrat,ion of glassware could be treated more thoroughly without adding much length to tho book. I t is the opinion of the reviewer that one of the many valuable contributions that elementary qoantitative analysis can bring to the training of under-graduate chemi~ts is a. thorollgh understanding of buffer systems and their role in analytical chemir;try. This text is not as strong as it might be in this arm. All of the rearrangements and additions of material and the few expansions of discussions have improved the value of the book as a text for elementary quantitative analysis. Same chapters have new sets of problems while most. chapters retain prohlems from the previous edition. Problems have been added to cover the new rnsterial. Those teachers who found t,he tenth edition to their liking will find thin new edition equally attractive.
GLENNH. BROWN University of Cincinnati Cincinnati, Ohio Bmsic Principles of Experimental Chemistry
J . Rae Schwaek and Razinzond M. Martin, Department of Chemistry, Sacramento Junior College. PrentieeHall, h e . , Englewood Cliffs, N. J., 1958. vi 377 pp. 48 figs. 21.5 X 28 em. $3.95.
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Thi, lehoratolly ma;:ual is designed to accompany the text, Bmic Principles of Chemistry"; it followsthe same sequence as the teat. However, it can he used with other college teats. Since most of the experiments aro independent units, the order of performing them may be varied. Nearly every assignment is well illustrated wit,h excellent drawings and a clear procedure is given. Rofwencrs to texthaok maberial are given. The manual is divided into nine parts. Part I, Introductory Assignments, in. traduces the student to most of the basic procedures and concepts deemed funda. mental to a beginning course in collegr chemi~try. Psrt I1 presents quantitstivr experiments (an analysis of an alloy anc determinations of formulas) and experi. ments involving the propertiez of scvera of the elements. Part I11 includes furthci quantitative experiments involving thr gas lawn. Part IV deals with the liquic phase, solutions, and colloidn. I n P a r V chemical equilibria is treated as i separate unit. Oridstion-reduction reac tians, including electroehemistry, an studied in Part VI. I n Part VII a shor introduction to qualitative analysis il given; just enough to arouse curiosit: among the students and encourage then to develop their own procedures. Radio
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