te Wflep J&tflettaSCIENCE EDITION

April 10, 1953Now York

AFRICA VIEWEDIN NEW LIGHT

When H. M. Stanley "discovered'tropical Africa 80 years ago, most of hisfellow Americans paid little attention.That it is among the least "known" ofall continents is still true. Often lightlypassed off as a "backward" area, Africaplays a more important role in our mod-ern life than is realized. Dr. DudleyStamp, President of the InternationalGeographical Union, while lecturing on"I Inderdeveloped Areas", found thatAfrica repeatedly proved an apt example- yet concrete information about thiscontinent was sadly lacking. Out of thisrealization grew Africa: A Study inTropical Development.

"What I have tried to do in thisbook is . . . to look at the continent. . .to consider its geographical back-ground as an environment for humanactivity and to study the responseswhich have been evoked from its Africaninhabitants and those who, in the lastfew centuries, have penetrated its fast-nesses and molded its fortunes," saysDr. Stamp in the Preface.

The book is a revealing, significantpicture of every African country andregion, of Africa's people, products, andproblems. 1953. 568 pages. $8.50.

A NEW "ADAMS"Welcome news to organic chemists

is the announcement that the seventhvolume of Organic Reactions Editedby Rogers Adams, is ready. It containsseven new reactions. 1953. Approx. 464pages. Prob. $8.50.

A CHANGING SUBJECT IN CHEMISTRYBECOMES A PROBLEM TO TEACHERS

Biochemistry Running Ahead, Textbooks Fulling Behind

Biochemistry, quite apart from its direct application, is today an essentialcomponent in the scientific education of the biologist or chemist. Although its ex-perimental basis is still in constant flux, the underlying structure remains unchanged.

It is with this in mind that Joseph S.Fruton and Sofia Simmonds, both of

ALGEBRA, A LANGUAGE? Yale University, have written GeneralBiochemistry, presenting the structure

Elementary Algebra of biochemistry from a modern, dynamicBuilt on Arithmotic point of view.

"Years of teaching have convincedme that algebra would frighten fewerpeople if its relation to arithmetic weregrasped", states Lloyd Lowenstein ofKent State University in the Preface tohis new Beginning Algebra for CollegeStudents.

In this book the author uses thereader's experiences in simple arithmeticto develop an understanding of the rulesof algebra. Algebra is treated as alanguage, and the reader is taught totranslate from English to the algebraiclanguage and back again. The mainobjective of the book is to make thereader think for himself and use algebraas a tool. An unusual and novel featureis the appendix wherein questions raisedin the text are fully answered - usefulto teacher and inquiring student alike.Beginning Algebra for College Stu-dents provides a refreshing presenta-tion for a terminal course, or a solidbasis for further work in college mathe-matics. 1953. Approx. 281 pages. $3.50.

NEW PUBLICATIONS PRESENT LATEST IN PHYSIOLOGYA Unique TreatmentIn Broad Synthesis

Bradley T. Scheer. University ofOregon, gives a thorough, up-to-date,and intelligible picture of vital func-tions, as condensed as possible, yetclearly showing the nature and presentstatus of the basic problems in GeneralPhysriology. He uses a quantitativetreatment, and retains a consistent pointof view throughout. 1953. Approx. 614pages. Prob. $7.00.

Chemical EssentialsFor General Students

Arthur K. Anderson, The Pennsyl-vania State College, has brought theFourth Edition of Essentials of Physio-logical Chemistry up-to-the-minute. Itincludes new chapters and figures, morematerial, fuller discussions of isotopesand vitamins, yet is still meant for theundergraduate with limited backgroundin chemistry and biology. 1953. Approx.450 pages. Prob. $5.00.

In this book, fundamentals receivemajor attention, with factual materialdrawn from studies with plants andmicroorganisms as well as animals.Emphasis is placed on the central placeof proteins and enzymes in the chemicalactivity of living matter. Facts are bal-anced against hypotheses. This is a bookwritten to capture the imagination, notmerely to challenge the memory. 1953.Approx. 920 pages. Prob. $10.00.

SCIENCE COMES TO LIFEScientific Method Linked

To Day-by-Day Experiences

Cutting across fields of science,integrating instead of treating themseparately, Richard Wistar of MillsCollege writes a different kind of bookin Man and His Physical Universe:An Integrated Course in Physical Sci-ence.

The interdependence of the sci-ences is the unifying thread of the book.The author draws on facts from thereader's everyday experience in develop-ing hypotheses and theories to accountfor physical phenomena. Principles oflight, for example, are demonstrated inone of their common applicationsphotography. The reader is shown howscientists actually proceed from observa-tion to generalization. Thus he developsa greater appreciation for the scientificmethod and the role it plays in hiseveryday life. 1953. Approx. 428 pages.Prob. $4.50.

April 10, 1953

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$3.754. A HISTORY OF THE THEORIES OF AETHER AND ELEC-TRICITY by Sir Edmund Whittaker. Sir Edmund Whittaker FRS,Professor Emeritus of Mathematics in the University of Edinliurghtraces the 'classical' theories from the early Greeks up to the dis-coveries associated with such scientists as Ohm, Faraday, Maxwelland Lorentz. Volume One is subtitled The Classical Theories. $8.755. OUT OF MY LATER YEARS by Albert Einstein. The distin-guished physicist, always an independent and uncompromisingthinker, deals with the most urgent questions of modern society:Social, religious, educational, and racial relationships. Various sec-tions deal with personal credos, politics, education the Jewish issuewar and peace, the fundamental principles of pLysics. In severalchapters the author explains his theory of relativity in such simpleterms as to be understood by every intelligent person. The bookshows Einstein the philosopher, Einstein the scientist and Einsteinthe man. It is a treasury of living thought and a striiing record ofone of our most eminent contemporaries. $4.756. DEAD CITIES AND FORGOTTEN TRIBES by Gordon Cooper.In this book Gordon Cooper traces the history of vanished peoples,their rulers and their fate: he tells too, of some of the least knownraces of the world, like the Lepches of Sikkim and the Jivaros ofPeru, and the strange people of the Lost Valley in the LoranjeMountains in New Guinea, who were discovered by the crew of anAmerican plane making an emergency landing during the war. $4.757. THE STORY OF WATCHES by T. P. Camerer Cuss. Fellow ofthe British Horologkal Institute and President of the NationalAssociation of Goldemiths. The story of the watch from its origin inthe portable clocks -of the fifteenth century down to the factory-madewatch of today, tracing its development in all its aspects. $7.50B. WATER by Sir Cyril S. Fox, D.Sc., F.G.S. It is the intention,in this volume, to provide the reader with an outline of the Scienceof Water, both in the academic and practical aspects of the subjectand to include details regarding its characteristics, its occurrenceand its utilization. Illustrated $8.759. THE NEW PHYSICS: TALKS ON ASPECTS OF SCIENCE bySir C. V. Raman. These talks by the world-renowned Indian physi-cist, a Nobel Prize winner, open new fields of beauty in the thingsof nature. $3.7510. REFLECTIONS OF A PHYSICIST by P. W. Bridgman. Thiswork includes most of the non-technical writings of Dr. Bridg-man and the topics include a discussion of the problems created bythe increasingly important social role science is coming to play.

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Philosophical Library, Publishers15 East 40th St., Desk Z, New York 16, N. Y.

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* for reference and classroom useIIITHE EVOLUTION OF CHEMISTRY

A History of Its Ideas, Methods,and Materials

EDUARD FARBER, Ph.D.

WRITTEN BY an eminent scholar, this up-to-date volumetells the story of the origin and history of chemistry. It pro-vides a full picture of the concepts and methods of chemis-try, integrating its evolution with the onmarch of historyand, especially, with the growth of other sciences andphilosophies.

Based on original studies of source materials, the bookdescribes the course of chemical history step-by-step fromthe days of the alchemists to the present period of indus-trialization and specialization. Includes biographies offoremost chemists and excerpts from their writings, cor-respondence, lectures. 30 ills., 349 pp. $6

RECORD OF THE ROCKSThe Geological Story of EasternNorth America

HORACE G. RICHARDS, Academy ofNatural Sciences, Philadelphia

THIS SUPERBLY illustrated book gives a clear account ofthe development of the physical world, with emphasis onthe geological history of the Atlantic Coastal Plain. Sum-marizes major principles of physical geology, gives a usefulclassification of plants and animals, and reviews varioustheories on the earth's origin.

Thoroughly analyzes and explains each period from thePre-Cambrian to the Recent to show its contributions to therock and fossil formations of eastern North America, withespecially detailed discussions of the Mesozoic and CenozoicEras. Incorporates the author's original research and freshinterpretations. 294 ills., 413 pp. $6

SciENCE IN WESTERN CILIzATIONA SYLLABUS

HENRY GUERLAC, Cornell UniversityA SYLLABUS for presenting the history of Western Civili-zation, with the development of modern science as the majortheme. Designed primarily for engineering and sciencestudents and qualified upperclassmen, it gives the histori-cal point of view and a sense of the unity of scientificenterprise. Bibliographies. $3

Physical Geology Labhratory ManulalJOHN B. LUCKE and JANET M. AITKEN-both of the University of Connecticut

DESIGNED FOR use throughout the country, this up-to-date manual contains exercises, questions, and worksheets,and provides basic text materials for laboratory work inintroductory geology courses. Supplementing rather thanduplicating textbook material, it stresses procedures. In-cludes U. S. Geological Survey brochure on topographicalmap reading. 20 ills., 8 I/7 x 11. $3

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Exclusive combinationmonocular-binocular tubefor photography

the Aong \earch microscopes

Now helping to chart new frontiers in all fields ofscientific research, the Leitz Ortholux is universcilyrecognized as the ultimate in research microscopes.In addition to outstanding precision and quality, itgiyes you all the features needed for easier,less tiring microscopic observation. To makethe Ortholux even n.,jre useful, Leitz nowoffers a combination monocular-binocular tubewhich enables you to photograph the microscopeimage without changing tubes. You change instantlyfrom microscopic observation to photomicrography.

All yours in one outstanding instrument-Built-in illumination system fortransmitted or incident light IBerek double-diaphragm condenser *Large, square built-n mechanical stagewith low set driveLow set micrometer fine adjustmenton double ball beansCounter-balanced coarse focusing

Another of the famous Leitz Microscopes... recognizedeverywhere as the finest microscopes produced anywhere since 1849.

For further information write Dept. IO4SC.

E. LEITZ, Inc., 468 Fourth Ave., New York 16, N. Y.

LE ITZ MICRO SCO PES * SCIENTI FIC IN STRUMENTS * BINOCULARSLEICA CAMERAS AND ACCESSORIES