RECENT B M K S CATALYSIS, INORGANIC AND ORGANIC. Sophia Bnkman, J w p e C.

Muwell, and Gustav Egloff, Universal Oil Products Company, Research Laboratories. Reinhold Publishing Corporation. New York City, 1940. xi + 1130 pp. 75 figs. 15 X 23 cm. $18.00. In the one volume CATALYSIS the authors have gathered to-

gether a relatively enormous amount of factual material, drawn from the whole field of catalysis and covering the period from the present back over many years. Because of the considerable di- vergence of opinion with respect to the mechanism of catalysis and to the interpretation of experimental data the authors have preferred "to arrange the findiogs of the various workers in the field and their original interpretations into a systematic presenta- tion of the subject with some consideration of its historical evolu- tion!' Thus the presentation is encyclopedic rather than critical.

The hook is divided into eleven main chapters with appended bibliographies, and is well indexed as to subjects and authors. The chapters are devoted to the following subjects: The Phen- omenon of Catalysis; Adsorption and Catalysis; Heterogeneous and Homogeneous Catalysis; The Activity of the Catalyst; Inhibitors in Catalysis; Promoters and Poisons in Catalysis; Carriers in Heterogeneous Catalysis; Catalytic Reactions in Inorganic and Organic Chemistry; Physical Conditions in Cat- alytic Reactions; Classification of Catalysts with Respect to Type of Reaction; Catalysis in the Petroleum Industry. Very extensive use is made of tables in a systematic presentation of facts, so that even though the book is large, its data are readily available. "It is the belief of the authors that future research in the field of catalysis may be Logically derived from the sys- tematically presented facts instead of from the empirical methods used a t present." The authors have made an important con- tribution to the literature of catalysis and have created a source book to which all those interested in the catalytic field will wish to have access.

W. W. RUSSELL BROWN UNNBXSITY

PROYIDBNCIC. R A O D ~ ISLAND

QUALITATIVE ANALYSIS AND CHEMICAL EQUILIBRIUM. T. R. Hogness and Warren C. Johnson, University of Chicago. Re- vised Edition. Henry Holt and Company, New York City, 1940. xvi f 5 3 8 ~ ~ . 33figs. 14 X 23cm. $2.90. The revised and expanded edition of this textbook is exactly

what would have been expected as a development from the well- planned and well-written first edition [reviewed in J. Cnemr. RDTP.. 14. 448 (1937) 1. AS in the earlier edition the methods

tative analysis, the second edition includes this procedure pre- sented as schemes for use either with centrifugation or with small filters and funnels. Important changes in the procedure involve the separation of the cadmium and cupric ions by the use of cadmium chloride complex ions to decrease the cadmium ion concentration sufficiently to present the formation of cad- mium sulfide; the use of hydrogen peroxide to oxidize stannous ion to stannic ion; the use of the bisulfate ion as a weak acid for use as a buffer solution in the Group I11 analysis; and a separa- tion of strontium and calcium based on the acidic nature of the bisulfateion.

The section an anion analysis has been improved and expanded. I t is designed to encourage the student to use his ingenuity and his knowledge of both anions and cations. Throughout the text a very adequate number of chemical equations, tables of data, and other pertinent information for the solution of problems are given. The appendixes include, in addition to the expanded tables about reagents, a section on mathematical operations and tables of ionization and dissociation constants,

This second edition should prove to be more popular than the first.

Ionrrc EQUUIBRIUM AS APPLIED TO QUALITATIVE ANALYSIS. T. R. Hogness and Warren C. Joknson, University of Chicago.

' Henry Holt and Company, New York City, 1941. vii + 306 pp. 23 figs. 14 X 23 cm. 52.W. This text consists of the theoretical part (Part I , or the first

271 pages) and the appendix of the revised edition of QUALITATIVE ANALYSIS AND CHEMICAL EQUILIBRIUM. (See preceding review.) As exmessed bv the authors. "it is desimed to meet the needs of

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teachers who either prefer to use thcir own particular scheme of analytical procedure or want to include in their courses sup- plementary rnaterial on chemical equilibrium in the form of problems and exercises."

This text should find wide application by teachers of qualita- tive analysis; the authors are to be commended for making available this material in the form of a separate text.

LAURENCE L. OUILL

ORGANIC SYNTHESES. Volume 21. Nathan L. Drake, Editor- &Chief. John Wiley and Sans, Inc.. New York City, 1941. v + 120 DD. 14.5 X 23.5 cm. $1.75. ~. - ~ . . .. . .

of presentation are matter-of-fact and the literary style is simplr. his yearly publication gives the equations for the reactionr. Any trachrr of qualitative analysis will find this text to be stitnu- procedurcq with accontpanying notes, and other methods of lating and to contain very north-while swz~stiona for PrCSenting ~ r ~ ~ ~ r a t i o n of 38 diflcrent orcanic comvounds. with formulas . . chemical equilibrium to students of qualitative analysis.

- verified by competent referees. I t is valuable far keeping up

he new hook is larger (by approximately 120 pages) and the with new and satisfactory methods for the preparation of organic revision is extensive. Many sections were entirely rewritten chemicals. and extensive insertions were made in all but a few of the chap- ten. Chapter 1 includes a more extensive discussion of the nature of ionic structure. Chemical equilibrium is the main BIBLIOGRAPHY, A BEGINNER'S GUIDE TO TR& MAKING, EYALUA-

theme for Chapters 2 to 9. The Br$nsted concept isemphasized TION, AND USE OP BIBLIOGRAPHIES. Malion Villiers Higgins, in Chapters 2, 6, and 8. The compilation of questionsandproh- Assistant Professor, Emory University Lihrary ~chool . The lems which illustrate the various principles outlined in each H. W. Wilson Co.. New York City, 1941. 43 PP. 13.5 X chapter serves to summarize and emphasize the principles dis- 19.5 cm. $0 60. cussed. A study of these problems should definitely clarify the As a brief introduction to the subject of bibliography in an relationships existing between the theory of qualitative analysis attempt to cover the needs of first-year library school students, and the laboratory phase of the course. This interesting and this is a general work and as such would be of help to a bibliog- very useful part of the text includes the first 271 pages. (This rapher of chemistry, hut does not meet his problems specifically. part of the hook is reprinted as a separate text. See next review.) The pamphlet is divided into four chapters discussing: defini- The more significant changes appear in the Experimental Part, tions, types, functions, and objectives of bibliography; hiblia-

or Part I1 of the text. Whereas the first edition utilized es- graphical form; evaluation of bibliographies; compilation of a sentially a small-scale adaption of the Fresenius scheme of quali- bibliography.

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