January 14, 1949, 9

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Books to help you keep up with modem trends in science

TRACE ELEMENTS IN FOODBy G. W. Monier-Williams, formerly in the Ministry of Health, England.

The entire field of trace elements in food is surveyed in this book. The authordiscusses these elements from the standpoint of both nutrition and toxicology. Heincludes analytical methods for determining the^ existence of trace elements.January 1949 511 pages Probable price, $6.00

THE STRUCTURE OF MATTERBy Francis Owen Rice, The Catholic University of America

and Edward Teller, University of Chicago.This first book in the Wiley Structure of Matter Series is an outline of theproperties of matter and a guide to their systematic interpretation by quantummechanics.January 1949 362 pages Illus. $5.00

PRINCIPLES AND METHODS OF ANIMAL BREEDINGBy R. B. Kelley, Animal Geneticist.

The inclusion of new material and extensive revisions make this second editioneven more valuable than the first to geneticists and breeders. New chapters on"Environmental Limitations" and "Parallels in Plant and Animal Breeding"are included.

In Press

MINERALS AND HOW TO STUDY THEMBy the late Edward S. Dana; Revised by Cornelius S. Hurlbut, Jr.,

Harvard University.

Rewritten to include all present-day data, this new edition retains the aim of itswidely used predecessor-to present mineralogy for the beginning student andamateur. Minerals are arranged according to chemical classification.3rd Edition, January 1949 323 pages 384 illus. $3.90

JOHN WILEY & SONS, Inc., 440 Fourth Avenue, New York 16, N. Y.

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January 14, 1949, Vol. 109 SCIENCE 9

109~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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SCIENCE January 14, 1949, Vol. 10910

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Deserving of Special ConsiderationFor Second Semester Classes

* Introduction to ORGANICand BIOLOGICAL CHEMISTRYNew Second Edition. Entirely revised and largely re-written. New sections to incorporate the unprece-dented developments that have occurred as a resultof wartime research include antimalarials, fluorinecompounds, silicones, mercaptans, penicillin, and themicrobiological assay of amino acids. 795 pages,illustrated. $5.75

By L. EARLE ARNOW, Ph.D., M.D., Directorof Research Division, Sharp & Dohme, Inc., andHENRY C. REITZ, Ph.D., Assistant Professorof Biochemistry, Purdue University.

ZOOLOGY LABORATORY STUDIES(Invertebrate and Vertebrate)

In assembling the material for this manual, the authorhas brought into the laboratory the essential funda-mentals which every zoology student should master.The attempt to correlate certain basic aspects ofembryology, histology, parasitology, adaptation, physi-ology, anatomy, etc., with conditions pertaining to thehuman body, is a distinct asset. 351 pages, illustratedwith 88 drawings in 52 figures. $4.25

By GUY P. THOMPSON, Associate Professor ofAnatomy, Baltimore College of Dental Surgery,Dental School, University of Maryland.

* Essentials ofCOLLEGE CHEMISTRYNew Third Edition. While the text is condensed, itis designed to furnish sufficient subject matter for aone-year course of three or more hours of classwork aweek. Because of current interest and importance,atomic fission, atomic bomb, ion exchange resins,modern detergents, and silicones have been added tothe text. 632 pages, 70 illustrations. $4.75

By G. H. WHITEFORD, Ph.D., Professor Emeri-tus of Chemistry; and R. G. COFFIN, M.S., As-sociate Professor of Chemistry, Colorado A. andM. College.

* MICROBIOLOGYAND PATHOLOGYNew Fourth Edition. Keeping pace with the rapiddevelopments in both sciences, this edition containsmuch new material. Added stress has been given thepart which microbes play in the processes of nature,the home, manufacturing and commerce. In the sec-tion on pathology, chapters on vitamin deficiencies andon endocrine glands have been added. 844 pages, 216illustrations, 25 color plates. $5.00

By CHARLES F. CARTER, B.S., M.D., Director,Carter's Clinical Laboratory, Dallas.

* Essentials of ZOOLOGY-Emphasizing Principles of Animal Biology

This new Second Edition represents a complete editingof the previous work, with revision and addition ofmaterial. It contains all the essential fundamentalswhich every zoology student should have, regardlessof the length of the course he happens to take. 544pages, 224 illustrations. $4.00

By GEORGE EDWIN POTTER, Ph.D., Pro-fessor of Zoology, Agricultural and MechanicalCollege of Texas, College Station, Texas.

* PERSONAL AND COMMUNITY HEALTHEighth Edition. Brought completely up-to-date toconform with current health standards. New materialincludes a self-appraisal chart for evaluating personalhealth. There has been a thorough reorganization ofthe material on communicable diseases with the addi-tion of a new chapter on this subject. Appendix Acarries the latest standards for communicable diseasecontrol. The latest statistical data in the field of publichealth are used. 568 pages, illustrated. $4.00

By C. E. TURNER, A.M., Ed.M., D.Sc., Dr.P.H., Professor of Public Health Emeritus, Mass.Institute of Technology..

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INTRODUCTION TO CHEMISTRY Laboratory Manual312 pages, 40 illustrations. $3.50 INTRODUCTION TO CHEMISTRY164 pages, illustrated. $2.75

By BERTHA S. DODGE, A.B., M.S., Formerly Instructorin Chemistry of the St. Louis Hospital School of Nursing

With this book, the author makes an entirely newteaching approach to Chemistry for the beginner. This manual is designed to be used as an integralBelieving that the best way is to leave the well- part of the study of chemistry in the laboratory bytrodden paths of the past, she starts out anew, making beginning students. The experiments selected are rela-modern atomic science an integral part of the book. tively foolproof and the instructions have been testedIt is a highly simplified outline of the science. revise enough th e itreasonabe tectEach experiment is arranged to illustrate and under- and revised enough to make it reasonable to expectline points made in the text, so that the sum total of students to follow them successfully. Each experi-study, instruction and laboratory manipulation should ment is provided with a removable Report Sheet.afford a unified whole.

SCIENCE 11January 14, 1949, Vol. 109

SCIENCE January 14, 1949, Vol. 109

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12 SCIENCE January 14, 1949, Vol. 109

January 14, 1949, Vol. 109 SCIENCE 13

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SCIENCE January 14, 1949, Vol. 109

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January 14, 1949, Vol. 109

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SCIENCE January 14, 1949, Vol. 109

The International Clinical Modelis now finished outside in durable

glistening light gray hammertone andinside in glossy baked white enamel.Both finishes are products of modempaint chemistry -.both are baked onat high temperature - both are hardand smooth, do not chip, are easy toclean and resistant to chemicals.Mechanically the Centrifuge is thesame reliable product you have knownfor years.

ICLINICAL MODELCENTRI FUGE

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Of major interest is the historical survey of "Science in Washington" by Dr. PaulOehser of the Editorial Staff of the Smithsonian Institution, which traces the develop-ment of science in Washington from the days of Thomas Jefferson to the appoint-ment of the President's Interdepartmental Committee on Research and Developmentin February 1948.

A volume of 132 pages, the Centennial Program is the only publication listing allthe subjects and speakers and special events marking the celebration of the 1 00th An-niversary of the founding of the Association.

Format, 6 x 9 inches, bound attractively in gold-stamped green velour. Sendchecks or money orders to A.A.A.S., 1515 Massachusetts Avenue, N.W., Washing-ton 5, D. C.

16 SCIENCE January 14, 1949, Vol. 109

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