JOURNAL O F CHEMICAL EDUCATION
170
A comparison of this volume with its predecessor, "Vegetable Fats and Oils" by G . S Jamieson (A. C. S. Monograph No. 58) reveals readily its different organization and more useful approach to the subject. The outstanding specialty of the hook is found in the presentation of the most important fats and ails according to their botanical classifications. This approach replaces the usual grouping according to iodine number and offers a more prsctied method of classification for the present purpose. The general arrangement of the 22 chapters reveals the following pat.tern: An introductory chapter which presents the author's plan, as well as the significance of the vegetable fats and oils; three chapters an chemical composition, physical properties, and chemical properties of the fats, respectively; One chapter on the biochemical and nutritional aspects of fats; a chapter on the genesis of fats and oils in plants by Lawrence P. Miller; one chapter on methods of analysis. The remaining 15 chapters (8 through 22) treat at length the important vegetable fats and oils, and these are described according to their botanical relationships among the plants from which they originate. Thus, nearly twothirds of the treatise covers comprehensively the significant facts n,hnut the veeetable fats and oil., and their orieins. The addition of pertinent tabular material enhances the value of the descriptive portions. The index is an excellent one. The author's attempt to present pertinent literature, both old and new, deserves special comment,. A spot-checking of the references presented in several chapters showed from 30 to 50 per cent to be later than 1945. The number of individual references for the 22 chapters tot& better than 3250. This number is increased by special references at various places in the body of the textual material, which the author presents in anticipation of the reader's desire to pursue further information on certain topics. The alphabetical listing of references at the end of each ohapter attests to the desire of the author to increase the utility of the volume. The actual number of adverse criticisms is few. Goad nomenclature calls for better t e r m than "normal propanol" and "isopropenol" (page 20). Although the author explains the nomenclsture of the fatty acids in detail, he has omitted (inadvertently, in d l probability) reference to the nomenclature of mixed glycerides. The author makes reference to a larwlv discarded faur~
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viscoelastic properties of gels is given by J. 3. Hermans. Equally rigorousis the treatment by C. Sadron of theviscosity of solutions of rigid particles (e. g., proteins). Another chapter by 3. J. Hermans consists of a summary of current theories of the hydrodynamics of dilute solutions of flexible-chain high polymers. Liquid sprays, that is, coarse aerosols, are treated by E. G. Richardson. The theory of the produrtion of stable liquid aerosols is considered by H. L. Green. The measurement of the mechanical properties of foams is treated by R. Matalon. The theory of the formation and stability of fine aerosols (smokes) is treated by H. L. Green. Some mechanical properties of powders are discussed by B. S. Neumann. The particular value of the book is that it draws together iuformation from a vide variety of sources. The surveys,,presented by competent writers who are as well experts in thelr respeotive fields, are stimulating and informative. The theoretical treatment is uneven due to the fact that development in one field such as high polymers may have progressed further than in some other field, say foams.
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somewhat obsolete. The details of the treatise, such as spelling, accuracy of formulas, clarity of expression, manner of presentation, and completcne38 of the index are given as careful attention as the important technical aspects. The book, above 811, is interestingly written. This comprehensive treatise will be, in the words of tho publisher, "the fundamental reference work in this field. It will prove of exceptional value to all chemists and other personnel engaged in producing, processing or utilieing vegetable fats and oil-, and of great interest to agronomists, nutritionists and others working with oil-hearing plants and their products."
GERALD OSTER INBTITUTE or BROOVLYN POLITFICHAIC R n o o n l m . NEWYon=
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SCIENCE FACILITIES FOR THE MODERN HIGH SCHOOL
P o d DeH. Hurd, School of Education, Stanford University. Stanford University Press, Stanford, California, 1954. viii 52 pp. 7 figs. 13.5 X 22.5cm. $2.
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THISmonograph, the second in a series, marks the first attempt of the St.anford School Planning Laboratory to share with others a particular subject field in appliedform to show how educators should approach the planning of school buildings and instructional facilities. The format of the monograph has been developed to make possible frequent publication and inexpensive revisions as valuable materials in educational administration appear. The ten chapters include planning of science rooms with particular specifications, trends, and developments in secondaryschool science teaching which iduence science education praetiee; factors basic to the development of adequate seienec facilities; illustrstions of modern science rooms as well as auxiliary science classrooms; equipment and furnishings for such rooms as well as for science-teaching facilities outside of the classroom. The final chapter is a master checklist of science facilities. Studies of this kind help administrators to get a, good point of view and the science teacher to be a, hetter planner. GRETA OPPE
ROY G BOSSERT 0 x 1 0 WEBLDYANUW~VEIIBITT DEL*W*~E, OHIO
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FLOW PROPERTIES OF DISPERSED SYSTEMS
Edited by J. J. Hermans, University of Leiden. Interscience 445 pp. Illustrated. Publishers, Inc., New Yak, 1953. xi 16 X 23.5 cm. $9.90.
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THEaim of this work is to summarize the principal theoretical and experimental knowledge of the meohanicd properties (particularly flow characteristics) of a wide variety of dispersed systems. R. Roscoe treat8 in a semiquantitative manner the difficult problems of thixotropy and turbulence of suspensions. Methods of preparation and conditions of stability of emulsions are covered by E- G.Richwdsou. A rigorous msthematieal treatment of the
0 MATTER ENERGY MECHANICS lokob Mandelker, Asaocia:e Professor of Mechanics. Georgia Institute of Technology, Atlanta, Georgia. Philcsophical Library. 73 pp. 20 figs. 23 X 15.5 cm New ark, 1954. viii $3.75.
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THE author, in his endeavor to get a more general formuhtiou of relativity theory, introduces a new kinetic energy formula. He arrives a t this formula by treating the increase of mass with velocity its equivalent to motion with resistance. The book is devoted to an elaboration of this point of view. The viewpoint has few, if any, experimental consequences which e m be tested and so will be of limited interest. HENRY EYRINO U w r v ~ n m ~orr UTAH EALT LAKECITT.UTAA
