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SCIENCE, Vol. 1131

A New Orgunic Text For A One-Semester Course

BASIC ORGANIC CHEMISTRYby J. Rae Schwenck, Ch.E. and Raymond M. Martin, M.S.

Sacramento Junior College

---Il

Table of Contents* Carbon* Compounds of Carbon with Hydrogen-Saturated Hydrocarbons: The Alkanes* Compounds of Carbon with Hydrogen-Unsaturated Hydrocarbons: The Al-kenes and Alkynes* Compounds of Carbon with Hydrogenand Halogens-The Haloalkanes* Compounds of Carbon with Oxygenand Hydrogen-First Oxidation: Alco-hols, Ethers* Compounds of Carbon with Oxygenand Hydrogen-Second Oxidation: Al-dehydes, Ketones* Compounds of Carbon with Oxygenand Hydrogen-Third Oxidation: Or-ganic Acids* Acid Derivatives: Salts, Esters, AcidAnhydrides, Acyl Halides, and Amides* Substituted Acids* Compounds of Carbon with Nitrogen* Carbohydrates* Nomenclature* Cyclic Compounds of Carbon withHydrogen* Aromatic Compounds with Halogensand Sulfur* Aromatic Compounds with Nitrogen* Aromatic Compounds with Oxygen* Heterocyclic Compounds

I Industrial Developments in OrganicChemistry* Biological Developments in OrganicChemistry* Organic Reactions in Vital Processes* Appendix: Wartime Developments inOrganic Chemistry* Index

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SCIENCE, Vol. 113

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FIRST YEAR COLLEGE CHEMISTRYBy J. W. BARKER and PAUL K. GLASOE, Wittenberg College. In press

Designed to provide the foundation of encyclopedic fact and underlying principles upon whicha student can predicate further work in chemistry. Emphasis is on the exposition of principles,but these are supported by adequate descriptive matter, including historical background.

ASTROPHYSICS: A Topical SymposiumEdited by J. A. HYNEK, Ohio State University. McGraw-Hill Astronomical Series. In press

A symposium of papers treating "essentially all the active fields" of astrophysics. The fifteencontributors are leaders and authorities in their respective fields. The volume commemoratesthe Fiftieth Anniversary of the Yerkes Observatory and reviews the progress in astrophysicsduring the half-century since the founding of the observatory. The book combines many of thefeatures of a textbook, a handbook, a historical study, and a technical treatise.

PRINCIPLES OF CHEMICAL THERMODYNAMICSBy MARTIN A. PATTL, Triple Cities College of the State University of New York. Inter-national Chemical Series. 740 pages, $7.50

A stimulating and imaginative text, designed to supplement and extend the treatment of ther-modynamics begun in the standard physical chemistrv course. Emphasis throughout is on prin-ciples and their origin, with specific applications to a limited number of fields, primarily the con-cern of the chemist: energy and equilibrium properties of pure substances, solutions, andchemical transformations, including electrochemical applications.

ANATOMY OF THE CHORDATESBy CHARLES K. WETCHERT, University of Cincinnati. McGraw-Hill Publications in the Zoo-logical Sciences. In press

Here is a text for the full-year's course in comparative anatomy of the vertebrates. It is acarefully prepared book, presenting the subject in a readable, interesting manner, using illus-trations as much as possible to stimulate interest and clarify text material. The book discussesthe classification and natural history of the main groups of living animals making up the phy-lum Chordata. A chapter on development follows. Then, each organ system is taken up sepa-rately and from a comparative point of view.

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PRECISE DETECTION I

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stable isotopes

Through its ability to measure isotope-ratio differences inthe sixth decimal place, precisely and rapidly, the Con-solidated-Nier Isotope-Ratio Mass Spectroimeter is theideal instrument for stable isotopic tracer programs.

Exceptional accuracy, combined with simplicity of opera-tion, make it a practical tool for research in the fields of:

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This instrument is in use in numerous medical, biological,and chemical research laboratories throughout the world.It has played an important part in many recent discoveriesand scientific advances.

1. Two separate ion collectors permitsimukaneous intensity measurements oftwo ion beams with direct reading ofthe ratio.2. Gas samples as small as 0.1 ml.,Operting S.T.P., can be handled in the readily

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New Texts for Study and Reference

HEGNER& STILES

WILLIAM K.GREGORY

WOODRUFF& BAITSELL

COLLEGE ZOOLOGYSixth Edition

One of the leading general zoology texts for 40 years, thisbook has been revised and rewritten to include the latest discoveriesin zoology, as well as the suggestions of outstanding specialists in thefield. 300 magnificent new illustrations have been added in thisedition. To be published in April

Evolution EmergingVolume I & Volume 11

This monumental work sets forth the epic of evolution fromthe evidence distilled from the author's 50 years of study, investiga-tion, and teaching in the American Museum of Natural History andColumbia University and his field studies in remote regions of theworld. Vol. I: the text; Vol. II: the illustrations. To be published inMarch

FOUNDATIONS OF BIOLOGYSeventh Edition

Dr. Woodruff's well-known basic text for courses in generalbiology has been revised and edited by Dr. Baitsell, outstandingteacher, author, and editor. This edition includes new illustrationsand important new material, particularly in the chapters concernedwith vertebrate structure and function. To be published in April

GENETICS IN THE20th CENTURY

L. C. DUNNEditor

This book is a collection of the papers presented at theJubilee Meeting of the Genetics Society of America in September1950. The papers were prepared for the meeting by leading authori-ties in the field of genetic research. To be published in April

- 4~~~~~~~ T H E MAC MILLAN, CO M PAN Y0 e 0

SCIENCE, Vol. 113

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Flame Photometry?

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rERON

FOR

INSTRUMENT NEWS is an 8-page quarterlypublished in the interests of furthering research,material analysis, and production through modernoptical instrumentation. Articles of technical andgeneral interest are prepared by leading workersin the field and by the Perkin-Elmer staff.

Some of the outstanding articles from the Fall,1950, issue are listed below:ACTH AND ADRENAL HORMONES IN MENTAL DISEASE

Flame Photometer Aids Hormone ResearchNEWER OPTICAL METHODS FOR CELL STUDIES

Article by R. C. MellorsPRISM MATERIALS FOR INFRARED ANALYSIS

Article by C. W. Young

Among the articles in the current Winter, 1951,issue are:VIDEO SCANNING METHODS FOR INFRAREDSPECTROMETERS

Article by S. Silverman & B. W. BullockELECTROPHORESIS AIDS CANCER RESEARCH

Article by Dr. Dan H. MooreINFRARED FOR PRODUCT CONTROL

Editorial FeatureHIGH-SPEED THERMOCOUPLESTheir Theory and Design

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I THE PERKIN-ELMER CORPORATIONNORWALK, CONN.

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SCIENCE, Vol. 113

Foreign Scientificand

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SCIENCE, Vol. 113