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TEXTBOOK of BACTERIOLOGYBy JOSEPH M. DOUGHERTY, A.B., M.A., Ph.D.,Formerly Dean of the School of Science and Profes-sor of Bacteriology, Villanova University; Fellow ofthe American Association for the Advancement ofScience; and ANTHONY J. LAMBERTI, B.S.,M.S., Instructor in Bacteriology and Parasitology,Temple University School of Medicine.Third Edition. 598 pages, 190 illustrations. Price,$8.25.

The importance of the science of bacteriology in everydaylife and the requirements of many avocations make theacquisition of the principles of bacteriology a distinct assetfor the college graduate. This text aims to secure the interestof the large number of students who are required to studybacteriology.This new 1954 edition has been completely revised and thenumber of chapters increased. Both the text matter and theillustrations have been increased by approximately 36% overthe previous edition.New chapters have been added on: The Growth and Deathof Bacteria; the Bacteriology of Air and Soil; Normal Bac-terial Flora of the Body; the Lactobacillus and ListeriaGroup; and Miscellaneous Bacteria. The original chapter on

the colon-typhoid-dysentery group has been completely re-written into four new chapters. The chapters on classification,morphology, chemistry, and metabolism of bacteria and thechapters on immunology and the viruses have been rewrittenand brought up to date.

DIAGNOSTIC BACTERIOLOGYBy ISABELLE GILBERT SCHAUB, Technical Di-rector, Clinical Bacteriology Laboratories, the JohnsHopkins Hospital; and M. KATHLEEN FOLEY,Instructor in Bacteriology, Department of BiologicalSciences, College of Notre Dame of Maryland.Fourth Edition. 365 pages, illustrated. Price, $4.50.

The subject of diagnostic bacteriology is now covered more

adequately than ever before. Schaub and Foley have done itcompletely-and they have done it in the most practicable andworkable form, starting with the handling of clinical material.They follow with descriptions of procedures for the identifica-tion of organisms, first by color characteristics, then bybiochemical reactions, and end with serologic tests. Much ofthe material in this edition has been rewritten. Many of theprocedures have been streamlined, and the authors have madeuse of new media and methods of differentiation andidentification

PRINCIPLES of MICROBIOLOGYBy CHARLES F. CARTER, B.S., M.D., Director,Carter's Clinical Laboratory, Dallas, Texas; andALICE L. SMITH, A.B.M.D., Assistant in Pathol-ogy, Instructor in Microbiology and Pathology, Park-land Hospital, School of Nursing, Dallas, Texas.Second Edition. 604 pages, 177 illustrations. Price,$5.00.

This book presents a brief general survey of the principles ofmicrobiology with simple descriptions of the most importantdisease-producing microbes and a discussion of the reaction ofthe animal body to contact with them.In this revision all chapters have been carefully studied. Thegeneral outline of the book remains the same as that of thefirst edition with the exception of an introductory chapter on

the History of Microbiology. Included in this chapter are the"milestones" found at the end of the previous edition. Com-paratively new developments which occupy the thought ofmicrobiologists, such as the therapeutic use of gammaglobulin, the activation of latent infections by the antibioticdrugs, the modern control of leprosy, and the more modernmethods of disinfection and sterilization, have been includedin this edition.The section of sulfonamide compounds and antibiotics hasbeen rewritten and enlarged. In all cases, so far as possible,the action of the sulfonamide compounds and antibiotics on

each disease-producing agent is given. Little mention is madeof therapeutic agents which were widely used only a fewdecades ago but which are now not commercially available.

Laboratory Guide forBEGINNING BACTERIOLOGYBy W. LEROY MALLMAN, Professor of Bacteriol-ogy, and EDWARD D. DEVEREUX, Professor ofBacteriology, Department of Bacteriology and Pub-lic Health, Michigan State College, East Lansing.Mich.144 pages. Price, $3.00.

This laboratory guide presents exercises planned to train thestudent in basic techniques preparatory to courses in more ad-vanced bacteriology and at the same time presents materialthat will be useful to the student who has taken beginningbacteriology as a part of his college program to train himselfin better citizenship or as a tool or aid in his chosen voca-

tion. The material presented is prepared for a course covering10 laboratory hours a week for 12 weeks of 6 laboratoryhours for 16 weeks.

THE C. V. MOSBY COMPANY, Date.3207 Washington Blvd.,St. Louis 3, MissouriGentlemen: Send me the book(s) checked with (X). fl Attached is my check. E Charge my account.C Dougherty-Lamberti-BACTERIOLOGY ............................................. $8.25

Carter-Smith-PRINCIPLES OF MICROBIOLOGY ................ .................. 5.00E Schaub-Foley-DIAGNOSTIC BACTERIOLOGY .................. .................. 4.50}3 Mallman-Devereux-BEGINNING BACTERIOLOGY .............. .................. 3.00

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22 OCTOBER 1954 17A

A "delightful volume [that] presents

the history of aerodynamics throughthe eyes of one of its principal archi-

tects.'5- Aeronautical Engineering Reutew

AERODYNAMICSSelected Topics in the Lightof Their Historical Development

By Theodore von KarmanFormer Director of the GuggenheimAeronautics Laboratory, CaliforniaInstitute of Technology

On the one hand, this book is a brief intro-duction to the history of aerodynamics, toldby one who took a leading part in its de-velopment. Dr. von K'arm'an enlivens theaccount with incidents and anecdotes fromhis personal experience.On the other hand, Aerodynamics: Se-

lected Topics in the Ligght of Their Histori-cal Dev)elopment is a presentation of someof the fundamentals of aerodynamics by afamotus teacher of the subject. It explainsthe essential steps by which aerodynamicsprogressed from the conceptions of theseventeenth and eighteenth centuries to theknowledge that has enabled us to build andfly the supersonic aircraft of today.

Contents. Preface. Aerodynamic Research beforethe Era of Flight. The Theory of Lift. Theoriesof Drag and Skin Friction. Supersonic Aerody-namics. Stability and Aeroelasticity. From thePropeller to the Space Rocket. Index.

Illustrated. $.15

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SCIENCE, VOL. 120

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I-IZ-" M CROGA--fS-------------- ---------~~SEX N M11C ROOR11GA NVIS MIS-Editorial Committee

D. H. WENRICH, University of Pennsylvania, ChairmanIVEY F. LEWIS, University of VirginiaJOHN R. RAPER, Harvard University

6 x 9 inches, 362 pages, 59 illustrations, 11 tables, clothbound, 1954Author and Subject Indexes, Bibliographies

Price $5.75, AAAS Members' prepaid order price $5.00.A symposium volume of the American Association for the

Advancement of Science: A distinguished group of workers in this field presents the evidence for "sex" in the

principal groups of microorganisms. There has been some expansion of the material pre-

sented at the symposium in Philadelphia to round out the volume.Morphological, genetic, and physiological considerations are covered in a framework

which will make the exciting new discoveries in this subject more meaningful to themany scientists following developments in this important area.

TABLE OFGenetic Recombination in Bacterial Viruses

Sex in Bacteria: Genetic Studies, 1945-1952

Sex in Bacteria: Evidence from Morphology

Life Cycles, Sexuality, and, Sexual Mechanismsin the Fungi

Sexual Reproduction in Diatoms

Sex in Utnicellular Algae

Sex in Protozoa: A Comparative Review

Maing Tpe Dete tion in Parameciumaurelia: A Study in Cellular Heredity

Mating Substances and thePPhyiiology of Fertili-zation in Ciliates

CONTENTSN. VISCONTn,Carnegie Institution of WashingtonCold Spring Harbor, N. Y.

JOSHUA LEDERBERG,University of Wisconsinand E. L TATUM,Stanford University

W. G. HUTCHINSON,University of Pennsylvaniaand HENRY STEMPEN,Jefferson Medical College

JOHN R. RAPER,Harvard University

Rum PATRICK,Academy of Natural Sciences of Philadelphia

RALPH A. LEWIN,National Research CouncilHalifax, N. S.

D. H. WENRICJI,University of Pennsylvania

DAVD L. NANNEY,University of Michigan

-CHARLES B. METZ,Florida State University

Comments on the Origin and Evolution of "Sex" D. H. WENRICH

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22 OcToBm 1954 21A

SLEEPING ACCOMMODATIONS AT 121st AAAS MEETINGBerkeley, California, December 26-31, 1954

Tlhe hotel, motel, and dormitory sleeping accommodations-their rates and the application coupon below-are for your convenience in making room reservations in Berkeley. Please send your application directly to theAAAS Housing Bureau and thereby avoid delay and confusion. The experienced Bureau will make assignmentspromptly; a confirmation will be sent you in two weeks or less. Single rooms may become scarce; double roomsfor single occupancy cost more; if possible, share a twin-bedded room with a colleague-and also save. Mail yourapplication now to secure your first choice of desired accommodations. All requests for reservations must give adefinite date and estimated hour of arrival and also probable date of departure.

HOTELS SINGLE DOUBLE TWIN SUITEClaremont 5.00-11.00 8.00-13.00 8.00-13.00 14.00-20.00Durant 4.00- 7.00 6.00- 9.00 6.50-10.00 10.00-16.00Shattuck 5.00-10.00 7.00-10.00 7.50-10.00 10.00-18.00Other hotels 3.00- 5.00 3.50- 5.00 4.00- 6.50 7.00-10.00

(Note: Most hotels have singles without private bath at $2.00-$3.50 per night)MOTELS FAMILY ROOMS

Berkeley Plaza 5.00 6.00 7.00 8.50-12.00California 4.00- 4.50 4.50- 5.00 5.50 6.00- 7.00Golden Bear 4.50- 5.00 5.00- 7.00 6.00- 8.00 7.50-10.00Other motels 4.00- 5.00 4.00- 6.00 5.50- 8.50 6.00-12.00

Dormitory Accommodations: NOTE: The 766 units in the University of California dormitories are primarily for students,younger faculty members, and those not on expense accounts. Occupancy, two persons per room; rate, $2.00 the first night,$1.00 per night thereafter, per person.

International House: Singles only, without private bath, $2.50 per night.

For a discussion of the headquarters of the participating societies and sections, please see Association Affairs, Science, July 23, orThe Scientific Monthly, August.

- .-------- THIS IS YOUR HOUSING RESERVATION COUPON - . -AAAS Housing Bureau2223 Fulton Street Date of Application ................................Berkeley 4, CaliforniaPlease reserve the following accommodations for the 121st Meeting of the AAAS in Berkeley, Dec. 26-31, 1954:

FirstChoice .Second Choice. ..................Third Choice(State name of hotel, motel, or other)

...... Single Room Desired Rate ....... Maximum Rate RO OMDEPOSIT

...... Double-bedded Room Desired Rate ....... Maximum Rate $5.00 per reservation or

...... Twin-bedded Room Desired Rate ....... Maximum Rate .$10.00 per room (re-...... Suite Desired Rate ....... Maximum Rate .funded if cancelled before...... Dormitory Unit(s) -two persons per room at $2.00 each first night, $1.00 per Make checks payable to

night thereafter. "AAAS Housing Bureau."

The name and address of each person, including yourself, must be listed. Attach list if this space is insufficient.

....................................................................................................

DATE OF ARRIVAL.DEPARTURE DATE.....DEPARTURE.DAT(These must be indicated-add approximate hour, a.m. or p.m.)

ADDRESS ...............................(Street) (City and Zone) (State)

My society (or sectional interest) is: ....................................................................I (will) (will not) have an automobile at the Meeting.

Mail this now to the Housing Bureau (address above). Enclose hotel or motel room deposit. Make checks payable toAAAS HOUSING BUREAU. Rooms wil be assigned and confirmed in order of receipt of reservation.

26A SMENCE, VOL. 120

Paper Chromatography and Paper ElectrophoresisA Laboratory Manual

BY R. J. BLOCK, E. L DURRUM, AND GUNTER ZWEIG

Dec. 1954, about 400 pp., illus., approx. $7.00Paper chromatography and paper electrophoresis, two analytical tools of the research scientist, haveearned increasingly widespread recognition during the last decade. Qualitative and quantitative analy-ses of complex mixtures have been greatly facilitated by development of these methods.

The growing acceptance of these methods has brought about a corresponding increase in theliterature, and the time is therefore opportune to review paper chromatography and paper electro-phoresis in order to re-evaluate established techniques and to describe new methods and applicationsfor a variety of substances.

Detailed procedures are given for solvent development of paper chromatogram, application ofsample to chromatogram and electrophoresis strip, staining and spraying techniques, quantitative es-timation in chromatography and electrophoresis. Applications include the following classes of -com-pounds: amino acids, purines, pyrimidines, proteins, nucleic acids, sugars, organic acids, steroids,antibiotics, vitamins, porphyrins, tannins, drugs, and insecticides. A bibliography and index enhancethe usefulness of the new book.

Isotopic Gas Analysis for BiochemistsBY R. F. GLASCOCK

Oct. 1954, 247 pp., illus., $5.80The radioisotopes of carbon and hydrogen have assumed increasing importance as tools in biochemi-cal and physiological research. For many problems in these fields it is advantageous to assay theisotopes in the gas phase. This manual describes in detail- the various methods of assay. Completedetails of the design and operation of the necessary equipment are also given.

Biological Applications of Freezing and DryingEDITED BY R. J. C. HARRIS

Institute of Cancer Research, London1954, 415 pp., illus., $10.00

At the present time freeze-drying is widely used for the,preservation,- not only. of blood products andantibiotics, but also of food, including human milk; bacteria,.and bacterial and tissue cltulemedia;viruses; and in the preparation and preservation of tissues for morphological and histochemical studies,and of specimens for electron microscopy.

The aim of this book is to provide for the first time a comprehensive and authoritative treatiseon these aspects of freezing and freeze-drying. It will serve as a work of reference for all those engagedwith the techniques and as a guide to those who have yet to employ them.

Detailed tables of contents available upon request

@) Academic Press Inc., Publishers125 East 23 Street, New York 10, New York

22 OCTOBER '1954- 27A;

GET YOUR ADVANCE COPYof the General Program-Directoryof the Berkeley Meeting of the AAAS

By first class mail -'early in DecemberThe General Program-Directory of the 12 1st Meeting of the AAAS on the campus of the University

of California, Berkeley, Dec. 26-31, 1954, will be available to anyone, at cost, within the first week inDecember-whether he can attend the Meeting or not. You will want the General Program-Directoryfor your reference shelf.

Program content

1. The threc-part General Symposium: "Science andSociety."

2. Programs of the 18 AAAS sections (symposia andcontributed papers).

3. Programs of the more than 70 participating societies.4. The Special Sessions: AAAS, Academy Conference,

Third Berkeley Symposium on Mathematical Statis-tics and Probability, Conference on Scientific Edi-torial Problems, National Geographic Society, Pa-cific Science Board, Phi Beta Kappa, Phi Kappa Phi,RESA, Sigma Xi.

5. Details of the Gymnasium for Men-center of theMeeting-and campus.

6. Titles of the latest foreign and domestic scientificfilms to be shown in the AAAS Science Theatre.

7. Exhibitors in the 1954 Annual Exposition of Scienceand Industry and descriptions of their exhibits.

Directory content

1. AAAS officers, staff, committees for 1954.

2. Complete roll of AAAS presidents and their fields.

3. The 260 affiliated organizations.

4. Historical sketch and organization of the Associa-tion; the Constitution and Bylaws.

5. Publications of the Association.

6. AAAS Awards and Grants-including all pastwinners.

7. Membership figures by sections.

8. Section committees (Council members) in detail.

9. Local committees.

10. Future Meetings of the AAAS-through 1958.

Advance RegistrationAdvance registration has these decided advantages: 1)You avoid delay at the Registration Genter upon arrival;

2)You receive the General- Program-fDirectory in ample time to decide, unhurriedly, which events and sessions youparticularly wish to attend; 3)Your name is posted in the Visible Directory as the Meeting opens.

The following coupon may be used both by advance registrants and by those who wish onlythe advance copy of the General Program-Directory.

THIS IS YOUR COUPON FOR AN ADVANCE COPY OF THE GENERAL PROGRAM-DIRECTORY

1 a. O Enclosed is $2.50 for my advance Registration Fee which brings me the Program-Directory, ConventionBadge, and all privileges of the Meeting.

lb. [ Enclosed is $1.50 for only the Program-Directory. (It is understood that, if I should attend the Meetinglater, the Badge-which is necessary for all privileges of the Mecting-will be secured for $1.00 more.)

(Check one)

2. FULL NAME (Dr., Miss, etc.) ....................................................................(Please print or typewrite) (Last) (First) (Initial)

3. ACADEMIC, PROFESSIONAL, ORBUSINESS CONNECTION ..................................

4. OFFICE OR HOME ADDRESS ................................(For receipt of Program-Directory)

5. YOUR FIELD OF INTEREST ....................................................................

Gi. CONVENTION ADDRESS ......................................................................(May be added later, after arrival)

Please mail this Coupon and your check or money order for $2.50 or $1.50 to theAMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE

1515 Massachusetts Avenue, N.W., Washington 5, D. C.

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NATIONAL RESEARCH COUNCILOF CANADA

POSTDOCTORATE FELLOWSHIPS1955-56

The National Research Council of Canada will award for1955-56 approximately 80 Fellowships fhr fundamentalresearch in Science and Engineering. Of these, 50 will betenable in National Research Council Laboratories inOttawa and Saskatoon, 15 in the Science Service Labora-tories of the Canada Department of Agriculture, locatedat various centres, and 15 in laboratories of CanadianUniversities.

Applicants should be not more than 35 years of age andshould possess a Ph.D. degree from a recognized university,or expect to obtain such a degree before taking up anaward. There are no restrictions regarding nationalityof candidates, but successful candidates must meet allCanadian immigration requirements.The annual stipend, which is free of income tax, is

$3,000 for a single Fellow and $3,500 for a male Fellowwho is married. An allowance toward the cost of travelis also paid.

Fellowships tenable in the National Research Councilor Department of Agriculture laboratories will be awardedfor initial terms of one year; applications for renewal fora second year will be considered. Those tenable in Uni-versity departments will be awarded for two years in thefirst instance, and applications may be made for renewalsfor further periods. An appointment may be taken upany time within the year in which the award is made, butpreferably in September or October.The fields in which Fellowships are available in the lab-

oratories of the National Research Council and .the Depart-ment of Agriculture are described in booklets that may beobtained on request, together with application forms. Ap-plicants who are interested in Fellowships in the Univer-sities may write directly to these institutions, or to theNational Research Council for information. The closingdate of the competition is 15 February, 1955.

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