February

1-2. Protein Conf., 19th annual, Rut-gers Bureau of Biological Research, NewBrunswick, N.J. (J. H. Leathem, RutgersUniv., New Brunswick)

1-3. Solid Propellant Rocket Conf.,American Inst. of Aeronautics and Astro-nautics, Washington, D.C. (D. L. Ray-mond, AIAA, 1290 Avenue of the Amer-icas, New York 10019)

1-3. Myasthenia Gravis, conf., NewYork Acad. of Sciences, New York.(NYAS, 2 E. 63 St., New York, N.Y.10021)

1-5. Gas Chromatography, conf., LosAngeles, Calif. (H. L. Tallman, PhysicalSciences Extension, Room 6532, Engi-neering Bldg., Univ. of California, LosAngeles 90024)

2-3. American Soc. Tool and Manufac-turing Engineers. Die Design and PressTooling, seminar. Detroit, Mich. (L. S.Fletcher, ASTME, 10700 Puritan St.,Detroit 38)

2-4. On-Line Computing. Symp., LosAngeles, Calif. (T. Kramer, EngineeringExtension. Univ. of California, Los An-geles 90024)

2-4. Society of the Plastics Industry,Reinforced Plastics Div. conf., Chicago,111. (C. L. Condit, SPI, 250 Park Ave.,New York 10017)

3-5. Southwest Chemical Assoc./Chem-ical Market Research Assoc., joint meet-ing, Houston, Tex. (H. F. Pfann, EnjayChemical Co., 60 W. 49 St., New York10020)

3-5. Military Electronics, Inst. of Elec-trical and Electronics Engineers, Los An-geles, Calif. (IEEE, 3600 Wilshire Blvd.,Los Angeles 90005)

3-5. Institute of Management Science,annual, San Francisco, Calif. (F. L. Wel-don, Matson Navigation Co., 215 MarketSt., San Francisco 5)

3-6. Fatty Acids Seminar, Council ofScientific and Industrial Research, Hydera-bad-9, India. (G. Satyanarayana Rao,Council of Scientific and Indtustrial Re-search, Regional Research Laboratory,Hyderabad-9)

4-5. American Soc. for EngineeringEducation, college-industry conf.. Pitts-burgh, Pa. (L. N. Canjar. Carnegie Inst. ofTechnology. Pittsburgh)

5. Parenteral Drug Assoc., New York,N.Y. (Parenteral Drug Assoc., Inc.. West-ern Saving Fund Bldg., Broad and Chest-nut Sts.. Philadelphia. Pa. 19107)

7-11. American Inst. of Chemical En-gineers, 55th national, Houston, Tex.(AlChE, 345 E. 47 St., New York 10017)

8-10. American Astronautical Soc., an-

nual, Denver, Colo. (Miss G. W. Heath,Flight Safety Foundation, 468 Park Ave.S.. New York 10016)

8- 12. American Soc. for Testing andMaterials, spring meeting, Cleveland. Ohio.(ASTM, 1916 Race St., Philadelphia, Pa.)

10-/1. Corrosion of Water Supply Sys-tems, 7th sanitary engineering conf., Ur-bana, 111. (B. B. Ewing, Univ. of Illinois,Urbana)

10-12. American Educational ResearchAssoc., annual, Chicago, 111. (R. A. Der-

shemer, 1201 16th St., NW, Washington,D.C.)

10-12. National Assoc. Corrosion En-gineers, conf., Calgary, Canada. (T. J. Hull,NACE, 980 M&M Bldg., Houston, Tex.77002)

10-13. National Soc. of College Teach-ers of Education, annual, Chicago. Ill.

(E. J. Clark, Indiana State College, TerreHaute)

10-13. American College of Radiology,annual, Philadelphia. Pa. (F. H. Squire,Presbyterian-St. Lulke's Hospital, 1753West Congress St., Chicago, 111. 60606)

11-13. Biology of Human Variation,conf., New York Acad. of Sciences, NewYork, N.Y. (NYAS, 2 E. 63 St., NewYork 10021)

12. Science Programs for General Edu-cation and the Preparation of ElementaryTeachers. conf.. Long Beach, Calif. (A.F. Eiss, National Science Teachers Assoc.,1201 16th St., NW, Washington, D.C.2(1036)

13-15. National Assoc. for Research inScience Teaching, annual, Chicago. Ill.

(J. D. Novak, Bio-Science Dept., PurdueUniv., Lafayette, Indiana)

14. Scientific Conference on Psycho-analysis, 3rd annual, Council of Psycho-analytic Psychotherapists, Inc., New York,N.Y. (Miss M. Nelson, 1965 ConferenceProgram, Box 255, East Setauket, LongIsland, N.Y.)

14-18. American Inst. Mining, Metal-lurgical and Petroleum Engineers, annual,Chicago, Ill. (R. W. Taylor, AIME, 345E. 47 St., New York, N.Y. 10017)

A S TODifco reagents for the diaglnosis ofGroup A Streptococcal Infections

* RHEUMATIC FEVER* GLOMERULONEPHRITISANTISTREPTOLYSIN 0 TITERS(ASTO) and their relation to pathologicalconditions in Group A streptococcal infec-tions have established the importance of thisdetermination as a routine clinical test.

Bacto-Streptolysin 0 Reagent a dehydrated,standardized and stable reagent requiring onlyrehydration with distilled water. AntistreptolysinO titers have been impractical for routine diag-nosis because of the difficulties in preparing thereagent. Bacto-Streptolysin 0 Reagent is a stan-dardized preparation permitting the routine per-formance of this diagnostic test in all clinicallaboratories.Bacto-ASTO Standard-an antiserum titered inTodd units for use as a control in the determina-tion of antistreptolysin 0 titers.

Descript i e Litcrature s tit uP on7 request

DIFCO LABORATORIESDETROIT 1 MICHIGAN U-SA

MOSSBAUER EFFECTSYMPOSIUM

Tuesday, January 26, 1965Sheraton-Atlantic Hotel, New York City

This symposium will bedevoted exclusively to

Mossbauer Effect Methodology.

80 SCIENCE, VOL. 147

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I|||I|I|||I|I|I||||||||||IPOSITIONS WANTED|IIIIIIGIIIIIIIIIIIIII[Clinical Chemist, Ph.D., with considerable ex-perience in diagnostic analysis, research, andteaching. Seeks challenge in building up labora-tory of clinical chemistry. Box 539, SCIENCE. X

Electron Microscopist. Ph.D. zoology-anatomytraining and experience. Numerous publications.Desires challenging academic position with op-portunities for both teaching and research. Box6, SCIENCE. 1/8

Information Scientist and Librarian. Literaturesearching, abstracting. Broad background in bio-logical and medical sciences. Experience inmedical library. Publications. Currently avail-able. Box 541, SCIENCE. X

(a) Ph.D. Physiologist, rounded teaching, researchbackground; mammalian, medical physiology;marine, cell biology; biophysics; desires chair-manship/professorship to build biology depart-ment. (b) Ph.D. Geophysical Science; experiencedin graduate, undergraduate teaching; kinetics,crystals research; wishes midwestern teaching/research. (c) Ph.D. Plant Physiologist (biochem-istry minor); recent graduate; prefers teaching,some research. (d) M.A. Marine Science; expe-rienced in and prefers animal behavior, marinescience research/teaching. For information writeScience Service, The Medical Bureau, Inc., 900North Michigan Avenue, Chicago, Illinois 60611.x

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MUCOPOLYSACCHARIDEPostdoctoral or established investigators to con-duct basic research in area of mucopoly-saccharides as related to protein synthesis. Re-search is in collaboration with hospital-affiliatedgroup devoted to eye research and problems oftissue formation and repair. $7000 to $13,000.

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BIOLOGISTto teach general biology, genetics in liberalarts college. Central Appalachia. Start 1February as instructor or assistant profes-sor, $6000 to $7200 for 9 months. Oppor-tunity for permanent position in rapidlydeveloping department. Write Chairman,Biology Department, Concord College,Athens, West Virginia.

BIOCHEMIST-COLLAGENPostdoctoral or established investigators.Research in collaboration with hospital-affiliated group devoted to eye researchand problems of tissue formation andrelation of opaque collagenous tissue totransparent. $7000 to $13,000.

Box 1, SCIENCE

Biochemist-Ph.D. or M.S. with some back-ground in microbiology. Conduct studies onisolation and assays of enzymes, nucleotides,and other natural products. Submit resumewith salary requirements to Personnel Dept.,Nutrilite Products, Inc., 5600 Beach Blvd.,Buena Park, Calif.

BIOCHEMIST-PROTEINPostdoctoral or established investigators. Re-search in collaboration with hospital-affiliatedgroup devoted to eye research and problems oftissue formation and repair in the areas ofprotein composition and synthesis in transparenttissue. $7000 to $13,000.

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Unique opportunity for a Ph.D. with training inBiochemistry and Physiology and interests indrug research and development. To provide es-

sential liaison between laboratory and clinicalscientists, aid in evaluating scientific data andhelp plan R&D activities. Occasional travel andattendance at scientiflc meetings is an integralpart of this position. Prior industrial experienceis not required.

MICROBIOLOGIST-Ph.D.An opening has recently developed in our In-

fectious Disease Department for which we are

seeking a Bacteriologist with biochemical train-

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various infectious disease processes in animalsand their biochemical manifestations. Followingthe establishment of sound basic information, the

program will be expanded to include the studyof the effects of new pharmacological agents on

these processes.

Please send curriculum vitae as well as salaryrequirements to: Cyrus M. Greenberg, Ph.D.,Director of Seientifle Employment, SMITHKLINE & FRENCH LABO.RATORIES, 1566 SpringGarden Street, Philadelphia,Pa. 19101. An Equal Oppor-tunity Employer.

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Postdoctoral or established investigators.Research in collaboration with hospital-affiliated group devoted to eye researchand problems of tissue formation andrepair. $7000 to $13,000.

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UNIVERSITY OF CALIFORNIA

LAWRENCERADIATION

LABORATORYLIVERMORE, CALIFORNIAOPERATED BY THE UNIVERSITY OF CALIFORNIA FORTHE UNITED STATES ATOMIC ENERGY COMMISSION

The Bio-Medical Division of theLawrence Radiation Laboratoryat Livermore, California, has anopening for a person familiar withtechniques for the preparation ofanimal and plant tissues for cyto-logical and electron-microscopeanalysis.

This individual will work withphysicists, electronics engineersand biologists in studies relatingto the localization of elements inbiological material.

Applicants with B.S., M.S., orPh.D. degrees will be considered.Contact Keith E. Moseley, Person-nel Department, Lawrence Radi-ation Laboratory, P. 0. Box 808-M13-15, Livermore, California.

U. S. Citizenship Required.An Equal Opportunity Employer.

1 JANUARY 1965

m- p~~~~~~~~~IUJ

jillilililllillllilillililililjl POSITIONS OPEN ||||||11111111ACADEMIC VACANCIES IN CANADIANUNIVERSITIES AND COLLEGES: A listof teaching and administrative openings ispublished in November, February and Aprilby the Canadian Universities Foundation, 75Albert Street, Ottawa 4, Canada. Annual sub-scription: $ 1.00.

BIOCHEMISTwith Ph.D. Active medical laboratory,1011-bed hospital. Starting salary $10,250.Excellent fringe benefits and laboratoryfacilities. Contact

Hospital DirectorVA Hospital

Topeka, Kansas 66622

HISTOCHEMISTEpithelial growth as related to collagensynthesis. To conduct independent basicresearch in the relationship of epithelialgrowth and to connective tissue synthesis.$7000 to $13,000.

Box 5, SCIENCE

I

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Biophysics Training Program FellowshipsApplica'tions are invited from candidates with

M.S. or Ph.D. decrees in either physical or bio-logical sciences. A miajor aspect of the programis the condoict otf a specific research project andctirrenit stLidies iticlide problemils in ratdliobiology,neLltronI activation and nCeLtroti dosimnctrs. pI tocess-ing- ol biolo-ical data and nmedical cngineering.Training stipenids in the range of S501()()-65()1).Fuirther informia;ltioni from Dr. G. L. Brownell,Head. Ph)ysics Research Laboratory, Massachii-setts General Hospital. Boston 14, Nlassachusetts.

Felloss ships fot- Chemists or Biologist forgradulte stLidy in Watct Technology. Cotur-se*vork in niajor held ptLIS slitSI y ot' svater andw aste treatment. Unide- adttdate 13 ave-aceminitrlinm. S230) to S260, month, 9 or 12montlhs. Dr. W. A. Parsons. D)epartnment ofCivil Engineering. Airginia Polytechnic Insti-tuite, Blacksburg, Virginia.

IRAINEESHIPS FOR GRADUATE WORKIN PH1-IANIACOLOGY

A 4-ycar procram of' cotirse xworkl and researchtraini,tg Icadinc to the Ph. D). dce-:ree is ofTeredl.U.S. citizenis on)1v. Research ill fLundalmentalmechanisms ot01 dru' actiotn. Starting atnntial sti-pend 524011 pltis ttLtionl and S5((0 per decpenident.Early application for September 1965 stronc,,lyadvisedl. Writc: D)cpartmetut of Pharmacology,School of Medicine, State U.niv. of New Yorkat Btuffalo. 122 Capen Hall, Btuffalo, N.Y. 14214.

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SYMPOSIUM ON BASICRESEARCH

Editor: Dael Wolfle 1959

AAAS Symposium VolumeNo. 56

328 pages, cloth

AAAS members' cash order,

$3.00

price$2.50

Sponsored by the National Academyof Sciences, the American Associationfcr the Advancement of Science, andthe Alfred P. Sloan Foundation.

CONTENTS

J. Robert Oppenheimer, The Need forNew Knowledge

Alan T. Waterman, Basic Research inthe United States

W. 0. Baker, The Paradox of Choice

Laurence M. Gould, Basic Researchand the Liberal Arts College

C. A. Elvehiem, Basic Research andthe State University

Lee A. DuBridge, Basic Research andthe Private University

James R. Killian, Jr., Capsule Conclu-sions

Crawford H. Greenewalt, Basic Re-search: A Technological Savings Ac-count

Dwight D. Eisenhower, Science: Hand-maiden of Freedom

Allen V. Astin, Basic Research in Gov-ernment Laboratories

James B. Fisk, Basic Research in In-dustrial Laboratories

Merle A. Tuve, Basic Research in Pri.vate Research Institutes

Paul E. Klopsteg, Support of BasicResearch from Government

Robert E. Wilson, Support of BasicResearch by Industry

Robert S. Morison, Support of BasicResearch from Private Philanthropy

Doel Wolfle, The Support of Basic Re-search: Summary of the Symposium

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Proceedings of a conference byNAS-NRC Committee on Photobiology

PHOTOPERIODISMAND RELATED PHENOMENAIN PLANTS AND ANIMALS

922 pp., 256 illus., 1959 $14.75$12.50 cash orders from AAAS members

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Recent AAAS Symposium Volumes#76. Agricultural Sciences for Developing Nations. #71. Great Lakes Basin.

October 1964. 230 pages. References. Index. 1962. 320 pages. 92 illustrations.Edited by: Albert H. Moseman Edited by: Howard J. Pincus.Characteristics of agricultural systems in emerg- ". . . Difficulty ... in attempting to do justiceing nations-Research to devise and adapt in- to all the topics covered in a book as rich asnovations-Education and development of hu- this one in content, interpretation, and discus-man resources-Establishing indigenous institu- sion. . . . Well designed and pleasing in ap-tions to serve advancing agriculture. pearance. . . . Highly recommended to scien-

Price: $6.75. AAAS Member's Cash Price: $6.00. tist and layman alike." Transactions, AmericanGeophysical Union, December 1963.

#75. Mechanisms of Hard Tissue Destruction.GepyiaUno,Dcmr193# 1963Mechanismsof6 Har. T0issuestructions. Price: $7.50. AAAS Member's Cash Price: $6.50.1963. 776 pages. 430 illustrations.One color plate. #70. Fundamentals of Keratinization.Edited by: Reidar F. Sognnaes. 1962. 202 pages. 136 illustrations.Symposium by 49 outstanding co-authors on Edited by: E. 0. Butcher and R. F. Sognnaes.destruction of mineralized structures by or- "This book . . . makes fascinating reading forganisms and by physical and chemical agents, all clinicians and research workers interestedranging from rock boring to bone resorption in keratinising tissues."'British Dental Journal,and tooth decay. m Jan. 1963o

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The Challenge of the Arid Lands in the U.S. #68. Sciences in Communist China.1963. 604 pages. 98 illustrations. 1961. 884 pages. 23 illustrations.Edited by: Carle Hodge and Peter C. Duisberg. Edited by: Sidney H. Gould."Best collection of background material . . . ". . . strongly recommended to all who arewell balanced and highly readable . . . prob- in search of facts and source material on theably the broadest and most nearly complete sciences in China."-Science, 22 Septembertreatment of arid lands yet published." Journal 1961of Forestry, May 1964. Pie 1.0 ASMme' ahPie 1.0

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Price:$8.00.AAAS ember'Cash rice: 7.00.Edited by: Ralph E. Hodgson.Price: $8.00. AAAS Member's-Cash Price: $7.00. |"This book will be of interest to nonplant and#72. Spermatozoan Motility. animal breeders, for the rather general treat-

1962. 322 pages. 113 illustrations. ment of various topics . . . allows for rapidEdited by: David W. Bishop. perusal."-Bulletin of the Entomological So-"This book is an excellent assemblage of re- ciety of America, September 1961cent findings and reports of new data relative Price: $9.75. AAAS Member's Cash Price: $8.50.to the perplexing problem of sperm mobility #65. Aging ... Some Social and Biological Aspects.and includes the opinions and ideas of cytolo- 1960. 436 pages. 65 illustrations.gists, biophysicists, biochemists and physiolo- Edited by: Nathan W. Shock.gists." Journal of Animal Sciences, March 1963. "te 26 Natha nW. Shock."Of great value to the research worker who "The 26 contributors include many of the most

is interested in the problems of fiagellar mo- respected names in American gerontology, andtion." The American Journal of the Medical the chapters cover a wealth of material."-Sciences, March 1963. Journal of Gerontology

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