Recent Books
Treatise on Physical Chemistry. HUGH S. TAYLOR, D.Sc., editor, DavidB. Jones Professor of Chemistry, Princeton University, Princeton, N. J. Second edition, D. Van Nostrand Company, Inc., New York City, 1931. 2 Volumes. Vol. 1, xv 852 48 pp.: Vol. 2, xii 1766 48 pp. 15 X 22.5 cm. Volumes not sold separately. $15.00.
is not discussed anywhere in the two volumes. This is unfortunate as there is still much to be learned from it. Dr. Webb has collaborated with Dr. Rodebush in writing Chapter XVII. Dr. Taylor has enlarged his chapter on "Photochemistry" by twenty-five per cent. The Chapter an "Infra-Red Radiation in Chemical Processes" has been doubled The second edition of this wd-known in size. I n this second edition the chapwork has been enlarged over thirtyave ter on "Colloids" has been written by per cent. This gives some idea of the Dr. E. 0. Kraemer. It has been exincrease in knowledge of the subject panded from 44 to 156 pages. The quantreated therein during the last five years. titative aspects are considered mare fully It also furnishes some conception of the and the recent developments thoroughly task confronting the contributors to this discussed. The chapters not mentioned have been in nearly every case carefully coaperative effort. The first notable change is to be found revised and somewhat enlarged. As in the previous edition, the binding in Chapters 111 and IV on "The Kinetic and printing are excellent. The indices Theorv of Gases and Liouids" and "Imare easy t o use and very full. The illusperfect Gases and the ~ i q u i dState." written bv ~ r s .Henfeld and small- trations are numerous and there are three wood, they require together no less than excellent halftone photographic reproduc177 pages representing an increase of 100 tions. The references are exceedingly pages, q-hose wishing a detailed dis. abundant. For one man to criticize adcussion of the kinetic theory will find i t versely such a work would verge on the here. The chapter on "ThermochemPresumptuous. Suffice it to say that no &tryn has been enlarged about teacher of chemistry, research chemist per cent. chapter XII, - ~ ~b l ~ ~ or ~ advanced t ~ ~ student . can afford not to of solutions,,* has been moved have this "Treatise" a t his elbow. M-OLM M. HARING forward to Volume I. Considerable new material has been inU N I ~ R S I Tow Y MAan*Nn COLL~O PABE. B MD. coworated in the chapter on electrometric methods. Dr. Urey has collabochapterColloid Symposium Monograph. Papers rated with D=. ~i~~ in presented a t the Eighth Symposium XIV. The Chapter on "Reaction Velocity in Heterogeneous Systems" has been On CD1loid IJni. chapter versity, June, 1930. Edited by H A W expanded. D ~ ~~~h~~~~ BOYERW~ISER. Professor of Chemistry, and Atomic Struftureu The Rice Institute. The Journd of has been enlarged to 278 pages. It forPhysical Chemislry, 654 Madison Avemerly required 126 pages, Of special interestin the way new material is nue, New York, N. Y.. 1931. 422 PP. his discussion of the newer work on the 16' figs' l7 26'5 s2.00; without author and subject indexes, nature of the electron, etc, In spite of $1.50. this great enlargement, i t has been found necessary to omit any discussion of the This volume serves to collect under Lewis-Langmuir atom model. I n fact it one cover the twenty-eight papers read 772
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