James Watt, 'Andrew Robertson Wilson, M.A.; 'William de Wever. John Burn Wood. . ? n. * Indicates that the Candidate has passed the Examination with distinc ...
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From the Cambridge University Press BIOLOGICAL ACTIONS OF SEX HORMONES By Harold Burrows We are pleased to announce the publication of the most comprehensive account of up-to-date research work on sexual endocrinology that has yet appeared in any country.
This volume summorizes all the important experi-
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ENGINEERING PREVIEW By L. E. Grinter and Others book is the first introduction to engineering to contain the full background materials of mathematics, chemistry, and the other sciences with which the future student of engineering must be familiar. In the first chapter Dr. Grinter out-
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F New books from the CAMBRIDGE ,v
THE CAVENDISH LABORATORY By ALEXANDER WOOD. This book describes the foundation and development of the Cavendish under Clerk Maxwell, Rayleigh, J. J. Thomson, and Rutherford, and some of the $1.00 epoch-making work done there. Eight plate illustrations.
ANIMAL CYTOLOGY AND EVOLUTION By M. J. D. WHITE. Here is a comprehensive work which deals with the structure and behavior of the nucleus, and particularly the chromosomes, in animals. It describes the differences and special features and explains their evolution in terms of modem knowledge-all recent work of importance has been taken into account. Professor Clarefice P. Oliver, University of Minnesota, says, "I believe that this text is one of the most interesting and best prepared scientific books I have read. In my opinion it is an essential reference work for anyone $7.50 interested in genetics."
THE SCIENCE AND ART OF MEDICINE By SIR LIONEL WHITBY. This essay, in justification of the use of imagination in medical research, shows that scientists are also artists. The author describes the discovery, elucidation and establishment of chemotherapeutical methods, and particularly the pioneer work of 50 cents Ehrlich.
News Notes: It is difficult to keep up with the heavy demand for Schrodinger's WHAT IS LiF?, but a further reprint is coming through and will be ready shortly . . . Readers of SCIENCE will be glad to learn that Sir William Dampier's A SHORTER HISTORY OF SCIENCE ($2.00) is back in stock again. "One of the most convenient chronicles and interpretations that we have," says Waldemar Kaempffert ... For a description ofan important new Cambridge book (BIOLOGICAL ACTIONs OF SEX HoRmoNws) see page 22 of this issue where the Macmillan advertisement appears. Order from your bookstore or from
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Coming in 1946 A Preview of Four New Chemistry Books BASIC COLLEGE CHEMISTRY By JOSEPH A. BABOR, Associate Professor of Chemistry, College of the City of New- York. A really modern and logical text based on atomic structure and a new periodic table. Particularly suitable for use in classes containing both students who have not had and those who have had high school chemistry. $3.75 (probable) 700 pages (approximate)
FIRST-YEAR QUALITATIVE ANALYSIS By CARL J. LIKES, Assistant Professor of Chemistry, Tulane University, and AUBREY E. HARVEY, Instructor in Chemistry, University of Virginia. Designed not for the purpose of training analytical chemists but rather for that of creating greater interest in and understanding of the descriptive and theoretical chemistry in the first course. $1.50 (probable) 150 pages (approximate)
SEMIMICRO QUALITATIVE ORGANIC ANALYSIS By NICHOLAS D. CHERONIS, Physical Science Chairman, Chicago City College (Wright Branch), and JOHN B. ENTRIKIN, Professor of Chemistry, Centenary College. A combination text and manual for both students and industrial chemists, emphasizing simple and reliable procedures for the identification of organic compounds using semi-micro quantities. $3.75 (probable) 450 pages (approximate)
PHYSICAL CHEMISTRY By HERSCHEL HUNT, Professor of Chemistry, Purdue University. A refreshingly clear and accurate development of the subject for students of chemistry, chemical engineering, and the physical sciences generally. Thermodynamics and chemical kinetics have been stressed as the basic fundamentals of the subject and the intimate interrelationships between chemistry, mathematics, physics, and engineering are emphasized to show the practical application of physical chemistry to other areas. $4.75 (probable) 650 pages (approximate) For more specific information on any of these forthcoming titles write to
THOMAS Y. CROWELL COMPANY 432 Fourth Avenue, New York 16, New York
Vol. 103, No. 2678
McGRAW-HILL .mOr. . General Chemistry. New second edition
Functional Anatomy of the Mammal
By EUGENE P. SCHOCH, WILLIAM A. FELSING, and GEORGE W. WATT, University of Texas. International Chemical Series. Ready in August
By W. JAMES LEACH, Temple University. McGrawHill Publications in the Zoological Sciences. Ready in August
This text for beginning students has been entirely rewritten, and is essentially a new book. Laboratory directions have been omitted and will be issued in a separate manual. The revised text includes a chapter on nuclear chemistry which introduces transmutation of the elements, artificial radioactivity, nuclear fission, atomic energy, etc. Sections have also been added introducing modernized inorganic ehemical nomenclature and on the economic factors related to the chemical industries.
An elementary text based principally on a dissection of the cat, but giving special consideration to relationships between quadrupeds and man. Many comparative features are illustrated by figures. Functional aspects of anatomy are stressed. Thus the treatment emphasizes organization and structural arrangements with reference to the body as a living unit.
Principles of Animal Biology. New sixth
Wave Propagation in Periodic Structures. Electric Filters and Crystal Lattices
By A. FRANKLIN SHULL, University of Michigan. With the collaboration of GEORGE R. LARUE and ALEXANDER G. RUTHvEN, University of Michigan. McGrawHill Publications in the Zoological Sciences. Ready in June In the present revision of this standard text the authors have made numerous changes which tend to emphasize fundamental concepts. The treatment of function has been stressed. Every chapter has undergone revisions designed to clarify the exposition and to bring it abreast of current ideas. In many instances descriptions have been made more explicit, and illustrated by simple dia-
By LtON BRILLOUIN, Columbia University. tional Series in Pure and Applied Physics. $4.00
In this text the author incorporates a variety of problems linked by a common mathematical background, extending from electrical engineering to electromagnetism and wave mechanics of the spinning electron. All problems deal with periodic structures of various kinds, which invariably, whether they are electric lines or crystal lattices, behave like band-pass filters.
Botany. Principles and Problems. Newfourth edition
By EDMUND W. SINNOTT, Yale University. McGrawHill Publications in the Botanical Sciences.
Ready in August For nearly a quarter century this standard text has been widely endorsed for its clear, simple, concise presentation; its treatment of the plant as a functioning structure; its applications of botanical theory to agricultural problems; and its wealth of stimulating questions. The book has been entirely reset, includes new material and illustrations, and has been thoroughly revised in the light of present-day knowledge.
Physical Chemistry for Colleges. New sixth edition
By E. B. MILLARD, Massachusetts Institute of Tech-
nology. International Chemical Series. Ready in June Again the author presents physical chemistry to beginners, with such simplicity that they can understand it after careful study, and yet with such precision that they will acquire a sound background with which to continue in the field beyond the introductory course. The greater part of the text has been rewritten, with the inclusion of much new experimental material, and many new problems have been added.
Inorganic Syntheses. Vol. 11 Editor-in-Chief: W. C. FERNELIUS, Purdue University. Assisted by a Staff of Specialists. Ready in Sejptember The second volume of a series designed to give carefully tested methods for the preparation of pure inorganic compounds, including sources of materials, purification, and analysis. Each synthesis has been tested in laboratories other than that from which it originated. In every case of doubt, a statement as to the source of starting materials is given. Recent advances in laboratory techniques are included.
A Textbook of Systematic Botany New third edition
By the late DEANE B. SWINGLE, Montana State College. McGraw-Hill Publications in the Botanical Sciences. Ready in August As before, this textbook presents in logical sequence the principles of plant taxonomy and nomenclature and discusses representative families of plants. The book is applicable to all parts of the country. Most of the chapters have been thoroughly revised and amplified, some have been almost entirely rewritten, and a new one has been added on methods of identification.
April 26, 1946
, 7att dta44e
. . . McGRAW- HILL An Introduction to Botany. New second edition
Textbook of Biochemistry By PHILIP H. MITCHELL, Brown University.
Designed for a first course in biochemistry, following the study of organic and introductory physical chemistry. The author presents a modernized treatment of the essentials of biochemistry, centered upon metabolism and human nutrition. At the same time, the book deals with older established biochemical knowledge. Discusses the important materials of life; photosynthesis; digestion, absorption, and metabolism; acid-base balance; energy balance; vitamins; enzymes; hormones; etc.
Chemistry for Our Times. An Introduction to the Science of Chemistry
Animal Biology. New third edition By the late ROBERT H. WOLCOT, University of Nebraska. Revised and rewritten by members of the Department of Zoology, University of Nebraska. McGraw-Hill Publications in the Zoological Sciences. Ready in August This well known text gives the beginning student a clear, comprehensive understanding of the biology of animals, including man. Outlines the fundamental principles of physiology, microscopic and macroscopic structures, classification of the animal kingdom, and the laws of evolution and heredity. The book has been brought abreast of current developments, descriptive keys have been included, and about 100 new figures have been added.
Introduction to Physics By HARLEY HOWE, Cornell University.
A leader in the field. The text states physical laws in rigorous but nonmathematical terms; illustrates physical principles from the student's daily experience; incorporates more "modern physics " in the traditional organization of a first course; and encourages the student to ask questions and to think for himself. Includes a wealth of tested exercises, questions, examples, problems, and illustrations.
Piezoelectricity. An Introduction to the Theory and Applications of Electromechanical Phenomena in Crystals By WALTER G. CADY, Wesleyan University. tional Series in Pure and Applied Physics. $9.00
By ARTHUR W. HAUPT, University of California at Los Angeles. McGraw-Hill Publications in the Botanical Sciences. 443 pages, $3.50 As before, this well known text is designed for a onesemester course in botany covering the fundamental facts and principles relating to the structure, function, and life relation of plants. The book has been entirely revised in accordance with present-day knowledge, a number of chapters have been wholly rewritten, and much new material has been added.
A comprehensive treatise covering the entire field of piezoelectricity, including related areas of elasticity, dielectrics, optics, and magnetism. Beginning with fundamental principles, the author deals with all phases of piezoelectric theory and its principal applications.
C. WEAVER, Phillips Academy, and LAUS. FOSTER, Massachusetts Institute of TechnolReady in July A basic first book for the high school student of chemistry, stressing scientific principles, consumer approach, and the impact of chemistry on everyday life. Particular care is taken to present the subject accurately in the light of the most recent information available. The book is especially rich in questions, problems, and other learning activities. A Teacher's Manual will be available.
Physical Chemistry for Premedical Students International Chemical Series. 311 pages, $3.50 This text is written especially for a one-semester course for premedical students. It includes only those portions of elementary physical chemistry which will be of value to the medical student in his later professional work. Worked-out problems illustrate each topic discussed. Throughout the text the Bronsted concept of acids and bases has been used. Many lecture demonstrations are described. The mathematical requirements have been kept to a minimum.
By JOHN PAGE AMSDEN, Dartmouth College.
German - Enslish Science Dictionary. For Students in Chemistry, Physics, Biology, Agriculture, and Related Sciences. New second edition By LOUIS DEVRIES, Iowa State College.
This widely distributed volume has been revised to make it of greater use to chemists. At the same time, the number of terms in biology, physics, mathematics, geology, agriculture, and forestry have been substantially increased. Many more idioms have been added, and the number of abbreviations at least doubled. The appendix contains Conversion Table, Atomic Table, Thermodynamic Symbols, Electric Units of Measure, Abbreviations of Periodicals, List of Measurements, and Geographic Names.
Send for copies on approval
McGRAW-HILL BOOK COMPANY, INC. 330 West 42nd Street, New York 18, N. Y.
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103, No. 2678
JAnnouncing for late summer publication A REVISED EDITION OF
INDUSTRIAL AND COMMERCIAL GEOGRAPHY by J. Russell Smith, Emeritus, Columbia University and M. Ogden Phillips, Washington and Lee University A reorganized, thoroughly modern edition of a famous and authoritative college text. In recognition of the increasing importance of mechanical power, the authors devote their attention first to minerals and the fundamentals of manufacture, especially coal and iron. This is followed by a consideration of raw materials and agriculture, and finally, by a discussion of world trade and trade routes. The book is replete with significant maps, graphs, and photographs which realistically illustrate the keen, stimulating analyses of economic and geographical conditions throughout the world.
Approximately 1,100 pages
Probable price $5.00
HENRY HOLT AND COMPANY 257 Fourth Avenue
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April 26, 1946
. . . the best English language book yet published not only for electron microscopy but for general electron optics as well."
ELECTRON OPTICS1AND THE ELECTRON MICROSCOPE By V. K. ZWORYKIN, G. A. MORTON, E. G. RAMBERG, J. HILLIER, A. W. VANCE; all at RCA Laboratories, Princeton, N. J.
IMMEDIATE RECOGNITION-for a distinguished book. Since publication in December, 1945, this first comprehensive report on the development and uses of the modern electron microscope has received high praise from chemists, physicists, biologists and teachers for the important new material it contains and for its treatment of both practice fnd theory. We have room below for only three typical comments: "A formidable team of experts of the Radio Corporation of America have combined to produce this outstanding work. The book has a twofold purpose, first to aid the electron microscopist in understanding and utilizing his instrument to the best advantage, and second, to give the electron optical designer essential information for the improvement of instruments. Some of the valuable data in the book covers principles of electron optics, design and construction of components, measurements and calculations, tracing of electron rays . . . and essential tables. It is a book that none interested in the subject can afford to be without" -ENGINEERS' DIGEST (London)
"There is enough meat in the second part of this particular book and the art described in the first part is sufficiently well advanced to give it lasting value. In short, it is doubtful that a better book on the subject will be prepared for some years." -AN AGRICULTURAL CHEMIST
"ELECTRON OPTICS AND THE ELECTRON MICROSCOPE is extensive in its scope and treatment and contains a wealth of value in electron optical problems. The book is divided into two main sections: I. Practical Electron Optics and Electron Microscopy, and II. Theoretical Basis of Electron Optics and the Electron Microscope. ... Examination of the book makes it evident that . .. a great amount of material previously available only in the literature now has been incorporated into one volume. In the opinion of the reviewer it is the best English language book yet published not only for electron microscopy but for general electron optics as well." -R. S. HEIDENREICH, Bell Telephone Laboratories, Inc., writing in the "Review of Scientific Instruments"
558 by 858
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103, No. 2678
REINHOLD BOOKS for your Scientific Library ENCYCLOPEDIA OF CHEMICAL REACTIONS Compiled and edited by C. A. JACOBSON, Ph.D., Professor of Chemistry, West Virginia University (and sixteen associates). VOLUME I: Aluminum, Antimony, Arsenic, Barium, Beryllium, Bismuth, Boron, Bromine. The first in a series of volumes giving in condensed form practically all published chemical reactions. Volume I, a monumental work, presents 3,000 entries which include reactions involving the elements listed above. Dr. Jacobson combines the usefulness of an index with a considerable portion of the informational content of abstract and reference works. Material is arranged alphabetically, first as to formulas of the reactants and next as to reagents. Includes concise descriptions of conditions governing each reaction, and the nature (color, odor, crystal form, yield, etc.) of the product formed; equations showing progress of reaction, journal references, and other pertinent data. Contains indexes to reagents and substances obtained. Four companion volumes giving the balance of the elements are to be compiled.
Theoretical and Applied
By selected international conrtibutors, Collected and Edited by JEROME ALEXANDER. VOLUME VI: 71 papers covering Technological Applications with special emphasis on Plastics. Those already acquainted with the first five volumes of this well-known series which presents the most comprehensive and modern treatment of Colloid Chemistry in any language, will welcome Volume VI as a practical complement to the preceding volume, and as an integral part of the series. This meaty volume presents the many-sided story of Colloid Chemistry in a collection of 71 papers by the world's leading specialists. A large part of the material is devoted to plastics and synthetic polymers, including such recent developments as silicones, polythene, and nylon. These and all the better known types of plastics are treated from both the theoretical and practical standpoints; as a group, these chapters comprise an invaluable reference source for teachers, students, research chemists, and technologists in the fields of plastics and resins, petroleum, rubber, soil chemistry, metallurgy, paints, dyes, insecticides, etc.
PROPERTIES of ORDINARY WATER-SUBSTANCE
In All Its Phases-Water-vapor, Water, and All the Ices Compiled by N. ERNEST DORSEY, Physicist, National Bureau of Standards.
The forthcoming atomic bomb test in the Pacific focuses the attention of physicists on the behavior of water under such abnormal conditions. Here is a monumental compilation of physical data, representing a lifetime of effort on the part of the author, an eminent authority on the subject. Assembles, extends, and critically evaluates all the available information on water-substance, with special emphasis on the data published in the International Critical Tables. All statements are copiously documented, and are accompanied at every point by data gathered by hundreds of observers. Contents include: Composition of water; Dissociation of water and water-vapor; Interaction of water-vapor and corpuscular radiation; Acoustic data for water and water-vapor; Pressure-volume-temperature associations for water and ice; Data on multiple-phase systems. $1 5.00 Illustrated A.C.S. Monograph No. 81 673 Pages
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~AEROBIOLOGY c-An A.A.A.S. Symposium Aerobiology consists of the papers of a symposium presented at the meeting of the Association held in Chicago on September 22-24, 1941, in connection with the celebration of the fiftieth anniversary of the founding of The University of Chicago. The symposium was organized by the Section on Medical Sciences and the Committee on Aerobiology of the National Research Council, under the direction of Dr. E. C. Stakman, Dr. Stuart Mudd, Dr. E. B. Lambert, and Dr. Malcolm H. Soule. The volume consists of two distinct parts, extramural aerobiology and intramural aerobiology. Extramural aerobiology, in which part there are eight papers, is concerned with the distribution of living organisms by the exterior air and with some of the consequences of their distribution. It includes within the field of interests insect population, plant pathogens, and fungus spores. Intramural aerobiology, in which part there are 29 papers, is equally diverse and important. It begins with the problem of contagion by air-borne infectious materials. It investigates the expulsion of secretions from the mouth and nose in the acts of sneezing and coughing; it follows the infections from the dissemination of pathogenic organisms into the operating room, the hospital ward, the cubicle for infants and the school and the home. viii + 296 quarto pages (7j x 0l inches), 10 plates and 75 illustrations, references
Prices, cash orders (postage prepaid) To members of A.A.A.S ............... $3.50 .......... $4.00 To others ...... Orders should be sent, with correct remittance, to
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Vol. 103, No. 2678
DRUG ADDICTION By ERICH HESSE, M.D. of narcotics Anup-to-the-minute survey of the immense quantities A and stimulants thrown on the world market through channels
legal and illegal. Narcotics and stimulants are clearly analyzed and described, cording to their psychic and physical effects.
$3.75 Among the
This book further endeavors to convey a pharmacological and toxicological knowledge, as well as to outline the general medical significance of narcotics and stimulants. The drug addict is investigated in various histories; experiments and tests on human beings as well as on animals are cited.
Subjects Discussed Narcotics and Stimulants Pharmaceutical Opiates Alcoholic Beverages Traffic Accidents Tea and Coffee Cola and Cocoa Marihuana and Tobacco Intoxication Pharmacology of Nicotine Opium and Morphine Coca Leaves and Cocaine Spruce and Cactus Narcotics
are clearly defined, as well as the various of addiction, their effects and their cure.
An appendix contains
Hashish and Kava-Kava Rare Addictions
preparation, of the multiple types
and method of
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This simplified Optical Pyrometer takes the "wreck" out of "reckon." Many a heat has been wrecked as a result of "guessing" at the temperature. "PYRO" is a lightweight (3 lbs.), totally SELF-CONTAINED, DIRECT READING, STURDY unit made to stand rough use, but it is ABSOLUTELY ACCURATE and DEPENDABLE. No correction charts, no accessories, no upkeep! New concentrated testmark and ease of operation permit unusually CLOSE and RAPID temperature determination even on MINUTE SPOTS, FAST MOVING OBJECTS or the SMALLEST STREAMS. THE "SPECIAL FOUNDRY TYPE" AND "TRIPLE RANGE" HAVE, IN ADDITION TO THE STANDARD CALIBRATED RANGES, A RED CORRECTION SCALE DETERMINING THE TRUE SPOUT.AND POURING TEMPERATURES OF MOLTEN IRON AND STEEL WHEN MEASURED IN THE OPEN. PYRO is furnished in 5 ranges to meet all plant and laboratory requirements, it is standard equipment with the leading plants and laboratories.-Ask for our catalog No. 80-it will interest you! Stock Ranges 14000 F. to 5000° F. Manufacturers of "PYRO" Optical, Radiation,
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April 26, 1946
NEW STOCK NOW AVAILABLE:
ENTOMOLOGY FOR INTRODUCTORY COURSES
Scientists are now being released from
By Robert Matheson
the armed forces. Many of these men have been engaged in fundamental and applied research or instruction while on active duty. Notices of their availability and brief statements of their qualifications appear each week in the PERSONNEL PLACEMENT section of SCIENCE.
Professor of Entomology, Cornell University
A well-organized and fully-illustrated text planned for the use of the beginning student in entomology. Emphasis has been placed upon the biology, habits and habitats of the common insects with particular attention to the parts they play in relation to agriculture, industry and man. In the fourteen chapters devoted to discussions of the various orders, keys have been supplied for the principal families of each group. 600 pages, 500 illustrations, $4.50
IF IT IS YOUR RESPONSIBILITY to employ scientists for teaching or re-
search, read the "Positions wanted" notices in PERSONNEL PLACEMENT regularly. The scientist you need for your staff may have a notice in this week's issue on pages 40-41.
A LABORATORY GUIDE IN
A FURTHER SUGGESTION
ENTOMOLOGY If you need men or women with special qualifications, you can announce the position in the "Positions open" part of PERSONNEL PLACEMENT for a reasonable cost. Notices are printed at the rate of 10¢ a word, $2.00 minimum, cash with order. Box addresses are counted as 8 words additional. Copy should be sent to
FOR INTRODUCTORY COURSES
By Robert Matheson A laboratory outline for high school or college classes in beginning entomology. Contains line drawings to be labeled by the student, and excellent keys to the identity of common families of the sev- eral orders. 135 pages, 48 plates, heavy paper, $2.00
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VOLUME VIII ANNUAL REVIEW OF PHYSIOLOGY
THE MARKET PLACE
Published by Annual Reviews, Inc. and American Physiological Society May 1, 1946
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Locate unusual equipment items, rare chemicals, drugs, or scientific specialties
n Sell your full library or sets of journals Find sources of supplies and services for repairing valuable equipment
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Is read by more than 21,000 scientists in all fields from A(nthropology) to Z(oology) Reaches important research centers all the world.
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S C I EN C E
Editor: J. MURRAY LucK Associate Editor: VICTOR E. HALL Editorial Committee: M. H. JACOBS A. J. CARLSON F. C. MANN J. F. FULTON W. J. MEEK
"An extremely useful, authoritative and indispensable review. . . . These reviews are becoming increasingly indispensable, not merely to the wide circle of investigators in the field of physiology but also to the enlightened medical practitioner who desires to pursue his profession with knowledge and understanding." (Current Science, 5, May, 1945) "An invaluable book of source material for investigators working in physiology or in the borderland between clinical medicine and physiology." (Journal of the American Medical Association, June 30, 1945) CONTENTS: Effects of Ultraviolet Radiation, A. Hollaender; Physiological Aspects of Genetics, C. H. Danforth; Developmental Physiology, L. B. Flexner; Physiology of Heat and Cold, J. R. Brobeck; Energy Metabolism, T. M. Carpenter; Respiration, L. F. Nims; The Physiology of the Skin, S. Rothman and Z. Felcher; Digestive System, J. P. Quigley; Liver and Bile, S. Freeman; Kidney, R. F. Pitts; Blood Coagulation, Thrombosis, and Hemorrhagic Disorders, J. F. Ferguson; Blood Cytology, G. M. Higgins; The Lymphatic System, 0. Cope and L. Rosenfeld; Heart, H. E. Hoff; Shock, M. I. Gregersen; Nerve and Synaptic Conduction, G. H. Bishop; The Visceral Functions of the Nervous System, K. Hare; The Somatic Functions of the Central Nervous System, A. E. Walker; Audition, E. G. Wever; Metabolic Functions of the Endocrine Glands, E. W. Dempsey; Reproduction, C. W. Hooker; Aviation Physiology, C. L. Gemmill; Physiological Psychology, R. H. Seashore; Applied Physiology, R. E. Johnson; Pharmacology, M. L. Tainter, C. L. Miller, and T. J. Becker.
Approximately 650 pages Author and Subject Indexes $5.00 per copy (American funds) Postpaid in U. S. A.
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MICRURGICAL and GERM-FREE METHODS Their Application to
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PLAIN FACTS about the use of germ-free organisms; their importance; methods to obtain and maintain them; difficulties and problems involved in their use. SPECIAL AUTHORITIES discuss the concept as to vertebrate animals, invertebrates, vertebrate embryos, germ-free tissue and organ cultures, germfree plants and plant parts. PRESENTING Principles and Fundamentals. Emphasizing TECHNIQUES. Describing methods, experiments, tests, apparatus, and instrumentation. Considering diet and nutrition of germ-free animals. Giving the Results of Application of Techniques. 286 pp., 94 figs., 17 tables, 384 references, $5.00 Charles C Thomas, Publisher * Springfield, Illinois
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This Symposium is No. 1, Volume 4, British Medical Bulletin, (80 pp. and cover, shillings). Copies may be obtained from the publishers; Medical Department, The British Council, 3, Hanover Street, London, W.], or from booksellers
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Personnel Placement CHARGES FOR CLASSIFIED ADVERTISING Regular setting 10¢ a word. Minimum charge $2.00 for each insertion. A box number counts as 8 words of the advertisement (e.g. 20 words plus box number equals 28 words). Display insertions, $8.80 per column inch. All insertions must be accompanied by correct remittance and sent to the Advertising Department, American Association for the Advancement of Science Massachusetts and Nebraska Avenues, Washington 16; D. C. Make checks payable to the A.A.A.S. Please address replies as follows: Box number, SCIENCE, Massachusetts and Nebraska Avenues, Washington 16, D. C.
POSITIONS OPEN Opportunities available-(a) Pharmaceutical chemist with executive experience; one of leading companies in the industry; salary depending upon qualifications but minimum, $6,000-$7,000. (b) Pharmacologist or biochemist with therapeutic rather than theoretical background for appointment with laboratories of experimental therapeutics conducted under university auspices. (c) Assistant editor for physical sciences (physics, mathematics, astronomy, astrophysics); duties deal with the terminology of the physical sciences with neither teaching or research opportunities; should be familiar with minutely technical terminology of radio and television and interested in nuclear physics and electronics. (d) Physiologist; duties consist entirely of research, principally in the field of cardiovascular physiology with some work In the eye; beautiful new laboratories opened about a year ago, well endowed and splendidly equipped; central metropolis. (e) Pharmacologist or biological chemist; duties involve production and testing of biologicals; Middle West. (f) Instructor or assistant professor of bacteriology; should be primarily Interested in physiology of bacteria and willing to assist in general bacteriology laboratory training. (g) Ph.D. to head department of chemistry; must be qualified to teach organic and physical chemistry; small liberal arts
college; South. S4-3 Medical Bureau (BURNEICE LARSON, Director), Palmolive Building, Chicago 11.
George Herdman Chair of Geology The Council of the University of Liver-
pool invites applications for the George Herdman Chair of Geology, at a salary of £1,350 per annum, together with superannuation within the Federated Superannuation System for Universities. The Council will be prepared to place a wide interpretation upon the term Geology. The appointment will date from 1 October 1946, or from such later date as may be arranged. Further particulars may be obtained from the undersigned, by whom applications (12 copies) should be received not later than 15 July 1946. Candidates who are overseas may make application by cablegram, naming three referees in England. STANLEY DUMBELL, April, 1946 Registrar.
UNIVERSITY OF DACCA (Eat Bengal, India)
Professorship of Physics Applications are Invited for the Professorship of Physics at this university. The starting salary Is 600 rupees per month with an increase of 50 rupees per month every second year until the maximum salary of 1,000 rupees per month Is reached (1 rupee =30.5 cents). In the event of a very distinguished Physicist being available he may be offered an Initial salary up to 1,000 rupees per month within the scale plus a personal allowance of 500 rupees per month In view of his eminence as a Physicist. The Professor will be the Head of the Department of Physics. He will be required to contribute 614 percent of his salary to the Provident Fund. The university will contribute the same amount as the Professor. Ten percent of his salary will be deducted as house rent. The appointment will be made for two years in the first Instance and If the probationary period is satisfactory, it may he renewed up to the age of retirement. First class travelling allowance will be paid to the selected candidate. The conditions of the appointment will be governed by the University Act, Statutes, Ordinances and Regulations and the selected candidate will be required to enter into a written contract approved by the Executive Council. Candidates should he distinguished Physicists and have experience of guiding and conducting research In their special subjects. Preference will be given to those who have had teaching experience and who have done some outstanding research In any branch of Physics. Applications with testimonials giving names and addresses of three referees and full details in regard to age, nationality, academic career, teaching experience and original publications, with one copy of each, must reach the Registrar not later than the 30th of June, 1946. The appointment will be made on the recommendation of a Selection Committee, which will not be limited In its choice to candidates who apply. -
THE UNIVERSITY OF LIVERPOOL
TRANSVAAL MUSEUM, PRETORIA UNION OF SOUTH AFRICA Applications
are invited for the post of Director Transvaal Museum Pretoria. The starting salary Is £ 850 (£ = $4.025)-and may be Increased £ 30 per annum until a maximum of £ 1,000 is reached-together with such allowances as may be provided under Public Service Regulations. Candidates are required to possess university degree and should give full particulars regarding their qualifications and experience. Experience in both the educational and research side of work of public natural history-museum will be recommendation. Candidates should be not less than 30 years or more than 45 years of age. The retiring age under the regulation Is 60 years. The successful candidate will be on probation for two years, at the end of which period he will be expected to be proficient In both English and Afrikaans. He must be proficient in one or both of these languages before appointment on probation. The successful candidate must produce satisfactory certificates of birth and of health and will be expected to join the Transvaal Museum Provident Fund. Applications which should be addressed to Director American Museum of Natural History, Central Park West at 79th Street, New York will be received up to and including June 26th, 1946.
April 26, 1946
Personnel Placement POSITIONS WANTED The California Medical Bureau, Agency for scientific and lay personnel in medicine, biology, chemistry, physics, and allied sciences, supplies teachers, research workers, laboratory dieners, skilled office help. Prompt service. Registration free. Your patronage respectfully solicited. THE CALIFORNIA MEDICAL BUREAU, Agency, 505 East Colorado Boulevard, Pasadena 1, California. Organic Chemist, Ph.D., Canadian. Five years fruitful postdoctoral industrial research experience. Would like to work with medical or biological research organization, particularly in field of cell and tissue nutrition and biochemistry. Box 479, SCIENCE. Opportunity wanted-Biochemist serving as head of department of biochemistry and nutrition during absence of permanent head who is with armed forces will be available soon; A.B. (major, chemistry; minor, physics); Ph.D. (major, chemistry; minor, Physiological chemistry); year's fellowship in physiological chemistry; eleven years, professor of biochemistry and head of the department of chemistry in university medical school located in an American dependency; for further information covering qualifications including bibliography, please write BURNEICE LARSON, Director, Medical Bureau, Palmolive Building, Chicago 11. Physicians, Laboratory and X-Ray Technicians, Bacteriologists, Pharmacists, Physical Therapists let us help you secure a position. Our service, established 1896, is Nationwide. Write us today. All information confidential. AZNOE'S-WOODWARD BUREAU, 30 North Michigan, Chicago 2.
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Index to Advertisers Name
American Association for the Advancement of Science...................... 16, 31, 33 and American Optical Company ...................... Cover ................................. Incorporated Reviews, Annual ........................ & Optical Company Bausch Lomb
Klett Manufacturing Company ............................. LaMotte Chemical Products Company . . . . . .
Lea & Febiger ............................. ................. E. Leitz, Incorporated ............ 21 ............... Institute .............. Linguaphone 8 Bicknell Company ............................. Macalaster The Macmillan Company ....................... 22 and McGraw-Hill Book Company ......... ......... 26 and 2 National Research Corporation ....................... 24 National Research Council . .18.....................
................................................ Beseler Company Charles Company ................................................... Blakiston The Council ............................................................... British The University of California Press .................. Cover Cambridge University Press ....................................... S.F Carver ........................................................................... 39 red
37 36 36 17 37 12
23 27 19
is Oxford University Press ....................... Cover 2 Classified Advertisements Philosophical Library ......... .............. 32 37 Market . The Place ......................................................... 41 Photovolt Corporation . Placement ................................................ 40 The Pyrometer Instrument Company ... 32 Personnel Clay-Adams Company, Incorporated.................. 6 Reinhold Publishing Corporation ........................... 30 .....................
Comstock Publishing Company, Incorpo-
Harrison C. Ryker, Incorporated ........................... 11 Saunders W.B. Company ................................1 Schuell Schleicher& Company ................................ 41 41 .................. Ivan Sorvall ............ .. .................................................................. 37' Laboratories Difco 34 .................. Purina Mills ............ .. Cover 3 Eastman Kodak Company ................... Statham Laboratories.....................Cover 2 Encyclopaedia Britannica Films, Inc................ 9 W.A. & Company .......................8......... Taylor Fish-Schurman Corporation ....................................... 36 . 7 The Technicon Company ........................ Fordham University Press ............................................. Charles C Thomas .38 General Biological Supply House ........................... 10 W. A. Hammond Drierite Company .................. 34 W. M. Welch Manufacturing Company . . . . . 15 Wiley20John & Sons, Inc . ................................. .................................... Harvard Apparatus Company . ................................. Corporation Hellige,Incorporated ......................................................... 4 and 5 Henry Holt & Company ................................................... 28 Wyeth, Incorporated............... rated ............................................................................................. 33 Thomas Y. Crowell Publishing Company ...... Cyclotron Speciklties Company.............................. 13
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