"VARIMEX"Animal Activity Monitor

for variety of vertical and horizontal movements

*Separately monitors vertical (rearing) and horizontalactivity.*Two identical sensors operated from time sharingcontrol unit.*Complete insensitivity to urine, feces, underlay.*Designed for exact comparative studies of minorchanges in activity.*Can selectively monitor one animal in the socialgroup.

Columbus InstrumentsDivision of

International Instruments Co.P. 0. Box 5244

Columbus, Ohio 43212 USAPhone: (614) 488-6176

Circle No. 189 on Readers' Service Card

The

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Get all the information. Request Bulletin. A-406

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18901 Cranwood Parkway, Cleveland. Ohio 44128Circle No. 281 on Readers' Service Card

14 JUNE 1974

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MiniservoT recorder:

Varooomm speed (0.5 sec. response) at putt-putt prices(as low as $349)! And the new Miniservo recorder has100 mV full scale basic sensitivity (spans of 10 or 1 mVoptional), accuracy of +0.5% span, 8 speeds from 1.5to 300 cm/hr. For $484 you get multi-range and multi-speed plus full scale zero adjust. Disposable pen/inkcartridge makes a bright red racing stripe down yourZ-fold chart. Miniservo comes in bench mount or panelstyles. Make accurate recordings in the field, too, withan optional battery pack and charger. Drive a bargain:see bulletin F 610. P.O. Box 24000, Indianapolis, Indi-ana 46224. Tel. 317/244-7611.

: ESTERLINE ANGUSA UNIT OF ESTERLINE CORPORATION

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Just push the "Set Point" button for preset37°C; uniformity is +0.03°C. Push the "Vari-able" button to dial from -10° to +1000C(cooling coil and cover needed for entirerange). Shaking rate adjusts from 20 to 200oscillations per minute. Built-in tachometer.Shaker tray accommodates 7 sizes of glasswarein any combination, test tubes, and 25 to 1,000ml Erlenmeyer flasks. Accessories permit broadrange of applications. Solid state controls,stainless steel interiors and a guarantee of 5years or 50,000,000 oscillations. Ask your GCA/Precision Scientific Dealer or write us. GCA/Precision Scientific, 3737 W. Cortland St., Chi-cago, IL 60647. Sales offices in principal cities

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1214

PersonnelPlacement

4||||||||||||||POSITIONS WANTED||||||||||||||

Anatomist-Histologist-Electron Microscopist.Ph.D. Desires senior academic teaching/researchposition. Extensive experience in transmissionand scanning electron microscopy; microprobeanalysis of normal and pathological tissues.Strong background in cell ultrafine strtucture.Versatile, innovative person with genuiine com-

mitment to teaching. NIumerotus puiblications. Box295, SCIENCE. X

Biochemist-Physiologist. Ph.D. 1970. Age 30.Publications; protein hormones; biosynthesis andpro-hormones. Current NIH grant, and assistantprofessor in medical school. Seeks teaching-research or research position. Box 296, SCIENCE.

xBioengineer, Ph.D. Extensive experience in Com-munications, Electronics, Control Systems, Simu-lation, Man-machine Systems, Biosystems, Pros-theses. Academic and industrial. Seeks change to

new position of teaching/research/developmentchallenge. Box 297, SCIENCE. 6/21, 28

Biologist. Ph.D. Diversified, naturalist interests.Five years of successful teaching (biology, zool-ogy, genetics, and microbiology). Desires re-locate Northeast. Box 298, SCIENCE. X

Biologist. M.S. 1974. Has a knowledge of phys-iology on the cellular (microscopic) as well as

the macroscopic level. Thesis written in microbialgenetics, emphasized physiological parameters.Seeks a teaching or research position. Box 299,SCIENCE. X

Cell Biologist/Microbial Ecologist desires re-

search/teaching position. Box 300, SCIENCE. X

Comparative Physiologist. Ph.D. Sodium andwater metabolism. Desires academic research-teaching position. Eight years teaching expe-rience, strong research backgrouLnd. Box 287,SCIENCE. 6/21Electron Microscopist. Ph.D. 1962. Significantresearch, publications, tumorigenesis, hematology,virology, parasitology. Presently professor anddirector of EM laboratory. Seeks challengingposition with opportunity for collaboration. San-ford Vernick, 40 Revere Road, Port Washington,N.Y. 11050. 66/21Environmental/Occupational Health, Ph.D. Biol-ogy/Meteorology, 10 years of research/indUstrialexperience, languages, seeks industrial consulting/academic research position, preferably Northeast.Box 301, SCIENtE. X

Go err me- tRegulations/Bio-Anal tical Chemist.Nlnolrits. Ph.). 1964. Seven years of experiencei all phlases ofFl)A regulationsfor the clearingof drtugs (lND's, NDA'sl. pesticidcs, herbicides,foods. .ind food ingredicrts. f' om radioactiveresiduie aid tnetaholismnstLudiesto preparation ofpetitiotis. Seventecit pthitblitioa

is in top joirnals.Box 3I(2 SCIFINF. X

It is requested that only those employerswho will not discriminate on the basis ofrace, sex, religion, color, or national originsubmit positions open advertising.POSITION WANTED: 40¢ per word, mini-mum charge $10. Use of Box Numbercounts as 10 additional words. Paymentin advance is required. These rates applyto individuals only. Personnel agencies andcompanies take display rate for all odver-tising.

POSITIONS OPEN: $110 per inch. No chargefor Box Number. Rates net. No agencycommission allowed for ads under 4 inches.No cash discount. Ads over 1 inch will bebilled to the nearest quarter inch. Paymentin advance is required except where satis-factory credit has been established.

COPY for ads must reach SCIENCE 4 weeksbefore issue date (Friday of every week).Send copy for Personnel Placement adver-tisini to:

SCIENCE, Room 207151 3 Massachusetts Ave., NW

Washinqton, D.C. 20005Replies to blind ads should be addressed

as follows:Box (qive number)SCIENCE1515 Massachusetts Ave., NWWashington, D.C. 20005

he University of California, California Collegeof Medicine, IJepartment of Physiology, is re-cruiiting a Cardiovascular Physiologist with aPh. D. ad academic experience presently attheAssociate Professor level. Applications fro,iIaialifie( candlidaites are wselcome; mtintorities ati;iimen ari ncnioiiraged to appil. Send namesoflouir ieferenccs aTidcuLrriculum vitae to Dr.PeterF. Hall, Professor and Chairman, Depart-ment of Phy,siologs, University of California.Irshi7e, California 92664.

SCIENCF. VOL. 184

-

|||||||||||||||POSITIONS WANTED |Young man seeks laboratory position in Bostonarea. B.S. in Microbiology. Five years' experiencein virus oncology and tissue culture. Resume andreferences furnished on request. Write: Box 8766,University of Tennessee, Knoxville, Tennessee37916. X

Pharmacologist, M.S./Organic Chemist, M.S,both recent degrees, female, proficient in chemi-cal synthesis, developing qualitative and quantita-tive techniques for the detection of parent drugsand metabolites thru use of GLC, IR, isolatedtissue preps; experience in GI and narcoticpharmacology, publications. Box 303, SCIENCE.

xPharmacology. Ph.D. Experienced medical, under-graduate teaching. Publications. Seeks academic,research, administrative position. Pharmacology,physiology, biology. Box 304, SCIENCE. 6/14, 21

Physiologist/Pharmacologist. Ph.D. 1972. Desiresteaching-research position Experience: nervoussystem, gastrointestinal tract and cardiovascularsystem. Box 305, SCIENCE. X

Plant Physiologist (Water Relations). Four yearspostdoc, publications, broad research interests andexperience, good technical background, someteaching experience. Seeks research or researchand teaching position. Available immediately.Edwin L. Fiscus, Department of Botany, DukeUniversity, Durhamn, North Carolina 27706. 6/14

Psychologist, M.S. Perception, "ABD Physiologi-cal." Three years of junior college teaching ex-perience. Acting head of Division. Have someexperience and much interest in development ofcurricuLla at junior college/undergraduate level.Prefer Baltimore-Washington area but will con-sider relocation. Box 306, SCIENCE. X

Theoretical Physicist. Ph.D. (particle theory,1971). Research and teaching experience. Alsoengineering background. Dedicated, hard-work-ing. Research. teaching or induistrv. Box 286.SCIENCE. X

Toxicologist, M.S. Clinical Chemistry. Ph.D.Pharmacology, stummner 1974. More than 6 yearsof experience in clinical and forensic toxicologyand breath alcohol testing. Publications. Experttestimony. Seeks clinical cheilmistry and/or toxi-cology position. Box 262, SCIENCE. X

1111111111111i11111 POSITIONS O PEN liiiiil!lIIIIlItACQUISITION EDITOR

PUBLISHING-Graduate-level science booksand joturnals. Major publisher invites applica-tions from recent Ph.D.'s for position of acquisi-tion editor to develop book and journal programs.Travel necessary. Salary commensurate with ex-perience and quLalifications. Substantial fringebenefits. Letter and resume, including startingsalary required, to Paul B. Hoeber, President,American Elsesier Publishing Company, Inc., 52Vanderbilt Avenue, New York, N.Y. 10017.

ASSISTANT PROFESSORAssistant Professor of: (i) Arthropod Biology

or Insect Ecology, (ii) Plant Physiology and/orBiochemistry, (iii) Microbial Physiology, Micro-biology, or Bacteriology, and (iv) VertebratePhysiology.

Starting Salary: $12,800. New teaching posi-tions beginning 1 July 1974. Candidate shouldhave Ph.D. Send curriculum vitae, transcripts, andthree letters of recommendation to: Chairman,Department of Biology, University of Puerto Rico,Rio Piedras, Puerto Rico 00931.

Assistant Professor, Department of Environ-mental Health will have available, July 1975, anassistant professorship in toxicology. The re-sponsibility is primarily research in the area oftoxicology, with emphasis on environmental agentsas distinguished from drugs. Modest teachingresponsibility in the graduate training programin toxicology included. Candidates should havePh.D. degree in toxicology and at least 1 yearof postdloctoral experience.

Send curriculum vitae, reprints, and names ofthree references to: Dr. P. B. Hammond, Depart-ment of Environmental Health, University ofCincinnati Medical Center, 3223 Eden Avenue,Cincinnati, Ohio 45219. An Affirmatsie Action/Eqial Opportunity Emoployer.

CARDIOVASCULAR PHYSIOLOGIST

|lil* POSITIONS OPEN1 JASSISTANT PROFESSORS

Applications are invited for two new posi-tions as Assistant Professors in the Departmentof Microbiology and Molecular Genetics, Har-vard Medical School, Boston, Mass. The appli-cants should have either an M.D. or Ph.D.degree and have demonstrated capacity for in-dependent research in animal cell viruses oraspects of macromolecular control in animal cells.Responsibilities include teaching of graduateand medical students. Write Dr. Jon Beckwith,Department of Microbiology and MolecularGenetics, Harvard Medical School, 25 ShattuckStreet, Boston, Massachusetts 02115, and includea complete curriculum vitae with publicationsand the names and addresses of three references.An Equal Opportunity/Affirmative Action Employer

ASSISTANT PROFESSORSHIPS INMOLECULAR BIOLOGY

Some positions for outstanding candidates withpostdoctoral experience will be available inDepartments of the College of Letters andScience and the Medical School associated withthe Molecular Biology Institute. A new buildingto house the Institute is under construction.Send information to:

Paul D. Boyer, DirectorMolecular Biology InstituteUniversity of California

Los Angeles, California 90024An equal opportunity/affirmati.-e action employer

ASSOCIATE PROFESSOR/RADIOECOLOGISTFaculty position in Radiology and Radiation

Biology starting 1 September 1974. Positionwill require teaching of radiation physics andradioisotope techniques in research, supervisionof graduate students in radiation ecology, andperformance of research. Demonstrated under-graduate and graduate teaching experience neces-sary. Research interests and experience must in-clude effects of radiation on ecosystems, systemsanalysis, and the behavior of transuranium ele-ments in ecosystems. Reply by 20 August 1974,with curriculum vitae (documenting teaching andresearch experience) and bibliography to: Dr. MaxR. Zelle, Chairman, Department of Radiologyand Radiation Biology, Colorado State Univer-sity, Fort Collins, Colorado 80523. Equal oppor-tunity far employment is provided through anAffirmative Action Program of the University.

CELL BIOLOGIST

Postdoctoral position for a recent Ph.D. toconduct independent research in tumor virology,immunology, and biochemistry. Submit curriculumvitae, references, and reprints to

Box 307, SCIENCE

CELL BIOLOGIST-ELECTRONMICROSCOPIST

Applications are invited for a position asassistant research biologist to develop electronmicroscopy portion of research program con-cerned with the biology of mammalian tumorcells and the effects of viruses and chemicals onthe properties of these cells. Candidate shouldhave background in tissue culture, cell biology,virology, and molecular biology; must be skilledin all aspects of microscopy, including freeze-etchand scanning; and must be competent to conductresearch in cellular transformation. Applicantsshould request three referees to write and sendcurriculum vitae and bibliography to: A. J.Hackett, Cell Culture Laboratory, Naval Biomedi-cal Research Laboratory, Navy Supply Center,Oakland, Califomia 94563.

Minorities welcome. Salary $15,500. Appoint-ment for 1 year with option for renewal ifmutually agreeable and funds are available.

ENVIRONMENTAL SCIENCES FACULTYRichmond College, an upper-division unit of

the City University of New York, is searchingfor a senior faculty member to assume thedirection and future planning of the graduateprogram in Environmental Sciences. Required:Ph.D. in relevant area of science or engineeringand established reputation in the field.We are also seeking to fill a full-time position

in the earth sciences (that is, geology, physicalmeteorology, or physical oceanography) withinthe Environmental Sciences program; Ph.D. re-quired.Rank and salary commensurate with qualifica-

tions.Resumes and references to: Dr. A. M. Levine,

Richmond College, 130 Stuyvesant Place, StatenIsland, New York 10301.Affirmative Action/Equal Opportunity Employer14 JUNE 1974

P|||||||||||||OSMTONSOPEN 1||||||||||||||||||||||||||l|DEPARTMENT OF METALLURGY

AND MATERIALS SCIENCEAt The University of Pennsylvania in Phila-delphia is seeking candidates for the position ofProfessor of Metallurgy and Materials Scienceand CHAIRMAN of the Department. Curriculumvitae, including list of publications and researchinterests, should be submitted to Professor R.Maddin, Chairman, Advisory Committee onSelection, LRSM Building, Philadelphia, Pa.19174. Applications should be submitted nolater than 31 August 1974 An Equial OpportunityEmployer.

CHAIRPERSONTHE UNIVERSITY OF MICHIGAN-

DEARBORNDEPARTMENT OF NATURAL SCIENCESA growing, multidisciplinary, undergraduate de-partment in an urban university having concen-trations in chemistry, experimental biology,physics, biochemistry, and biophysical science,seeks a chairperson for September 1975. Appli-cants should have proven ability in teaching andresearch involving undergraduates. Administra-tive exp^rience is desirable. Field of specializa-tion is open. Interested applicants should sendcur. iculum vitae and the names of three refer-ences to Chairperson, Search Committee, Depart-ment of Natural Sciences, University of Michi-gan-Dearborn, 4901 Evergreen Road, Dearborn,Michigan 48128. Closing date for applications is1 September 1974. A Nondiscriminatory Affirma-tir e Action Employer.

CHAIRMAN, DIVISION OFTUMOR IMMUNOLOGYST. JUDE CHILDREN'SRESEARCH HOSPITAL

St. Jude Children's Research Hospital is seek-ing a distinguished scientist to organize andchair a division of tumor immunology. Applica-tions are invited from persons with demonstratedexpertise in basic immunology. Letters of appli-cation, with curriculum vitae, should be sent to

Dr. R. G. WebsterChairman, Search Committee

St. Jude Children's Research HospitalP.O. Box 318

Memphis, Tenn. 38101An Equal Opportunity Employer/

Male and Female

STATE UNIVERSITY OF NEW YORKAT STONY BROOK

DEAN FOR UNDERGRADUATE STUDIES

Stony Brook invites nominations and applica-tions for the newly created position of Dean forUndergraduate Studies, a major post designedto enhance the intellectual integrity and coher-ence of undergraduate education. This Deandirects the Center for Curriculum Developmentand the staff and resources of an existing Officeof Undergraduate Studies. The Dean will partici-pate in the formulation of academic policy andcorresponding resource and personnel decisions.

Please direct all correspondence to: James B.McKenna, Chairman, Search Committee, StateUniversity of New York, Stony Brook, NewYork 11790.

Stony Brook is an Equal Opportunity/Affirmative Action Employer

ECOLOGICAL TEAM WORKERHighly motivated, energetic; experience workingwith life scientists and/or natural areas wouldbe beneficial. Exciting 18-month national survey,base in Michigan or Tennessee, opportunity fortravel and work with senior scientists to preparea comprehensive ecological reserve program.Salary commensurate with experience. Sendresume to The Institute of Ecology, Suite 101, 1717Massachusetts Ave., NW, Washington, D.C. 20036.

ENVIRONMENTAL EPIDEMIOLOGISTNational professional health association is look-ing for health scientist with experience andtraining in environmental health and epidemiol-ogy, as well as working familiarity with toxicol-ogy. Responsible work with consultants to designand conduct investigations on environmentalhealth hazards within the United States. M.D. orPh.D in health science required. Salary $25,000to $30,000 per year depending on experience.Those interested or desiring further informationshould write or call: Dr. Richard L. Wade,Director, Program Services, American PublicHealth Association, 1015 18th St., NW, Wash-irgton, D.C. 20036. Telephone: 202-467-5040.Equial Opportunity/Affirmative Action Employer

II;IIIIIEI-l POSIONS OPEN Eli HE

EPIDEMIOLOGIST/BIOSTATISTICIANOffice of Environmental Sciences of the U.S.

Environmental Protection Agency seeks a researchadministrator for Chief, Epidemiology Branch,Health Effects Division in Washington, D.C.Ph.D. in epidemiology or biostatistics and atleast 3 years of related experience required. Re-sponsibilities include planning, managing, andevaluating research for the collection and analysisof data on selected health indicators in popula-tions exposed to pollutants. Salary from $28-36K commensurate with qualifications.For further information call (collect) Ms. L.

Bowman at (202) 755-0260 or write: EPA, Person-nel Management Division, Room 3019, 401 MStreet, SW, Washington, D.C. 20460. EOE

FACULTY POSITIONDepartment of Poultry Science seeks faculty

member with interest in poultry managementresearch and teaching. Ph.D. in applicable area(for example, animal physiology) is required.Position available about 1 January 1975. Applyto Head, Department of Poultry Science, ThePennsylvania State University, 213 Animal Indus-tries Building, University Park, Pa. 16802.

An equal opportunity employer

GENETICIST, Ph.DPosition available September 1974. Teach in-

troductory courses in genetics and develop gradu-ate course in specialty. Interest in molecular-biochemical genetics preferred. Send resume,transcripts, and three letters of recommendationto:

Dr. David W. EldridgeDepartment of Biology

Baylor UniversityWaco, Texas 76703

MARINE CHEMISTTo conduct shipboard and laboratory aspects

of environmental hydrocarbon studies in theNorth Pacific.

Qualifications: M.S. in a natural science orB.S. plus research experience; familiarity withprocedures for environmental hydrocarbon analysis;demonistated ability to work at sea.Send curriculum vitae and two letters of refer-

ence to Dr. D. G. Shaw, Institute of MarineSciences, University of Alaska, Fairbanks, Alaska99701.

Equal OpportunityAffirmative Action EmploYer

UNIVERSITY OF SASKATCHEWANWESTERN COLLEGE OF VETERINARY

MEDICINEPosition: Professor and Head of Department of

Veterinary Pathology.Professional Qualifications: D.V.M. and Ph.D.

or equivalent, for example, Diplomate ACVP anasset.

Duties: Responsible to the dean for the workof the department. General supervision of thedepartment and, in consultation with tenuredmembers, supervises the quality of and assignsteaching duties. Is responsible for staff and equip-ment in the department and for budget prepara-tion and control.

Direction of research and service programs ofdepartment.

Salary: Negotiable.Effective Date: 1 July 1974 (Negotiable)Applications to: Dean, Westemn College of

Veterinary Medicine, University of Saskatchewan,Saskatoon, Saskatchewan, S7N OWO, Canada.

1215

11=1111milluNillilmal

FACULTY POSITIONIt is anticipated that a faculty position will

become available 1 July 1974. Applicants must beexperienced teachers of gross anatomy and havean active research program in progress.Send curriculum vitae and the names of three

referees to: Chairman, Department of HumanAnatomy, School of Medicine, University ofCalifornia, Davis, California 95616.An Equal Opportunity Affirmative Action Employer

EPIDEMIOLOGIST-Mount Sinai School ofNursing, Department of Community Medicine.Full-time medical care epidemiologist with experi-ence both in research and education in communitymedicine. M.D. required. Forward curriculumvitae to: Kurt W. Deuschle, M.D., Chairman,Department of Community Medicine, Mount SinaiMedical Center, Fifth Avenue and 100 Street, NewYork, N.Y. 10029. An equal opportunity/affirma-tive action employer.

I

BiOSCiENTiST|Sr

IL

At the LAWRENCE LIVERMORE LABORATORYin a rural community near San Francisco, the Bio-physical Cytology Program is expanding its diagnosticand quantitative cellular studies of genetic, carcino-genetic and reproductive responses to environmentaltoxicity. Exciting opportunities are open for the followingkey scientists:BIOPHYSICIST/REPRODUCTIVE BIOLOGIST / Responsibilities includecollaborative, highly interactive research on development and applicationof biophysical and cytological methods for monitoring and studying mechan-isms of action of environmental agents on male germinal tissues. Ph.D. orequivalent in biology or biophysics, plus published evidence of originalresearch in mammalian spermatogenesis, sperm physiology, quantitation ofcell components and effects of radiation and other environmental mutagens.CELL BIOLOGIST/BIOCHEMIST / Responsibilities include developingbiochemical and biophysical assays to study mutants, culturing cells, design-ing and executing experiments, operating and maintaining diverse equip-ment, and organizing and ensuring smooth functioning of laboratoryactivities. M.S. or equivalent with molecular biology/biochemistry back-ground and experience in tissue culture.BIOCHEMIST/CELL BIOLOGIST/ Established scientist to lead a small groupeffort on the chemistry and biology of chromatin. Particular emphasis isgiven to the roles of heterochromatin and repetitive-sequence DNA inmechanisms of mutagenesis, and chromosome structure and aberrations.An extraordinary mammalian system is available for study; others to bedeveloped. Background should include Ph.D. and/or M.D. degr6e andexperience in several of the following areas: research on nuclear proteins orchromatin, normal biochemical and physicochemical methodology, cellculture techniques, possibly mutagenesis detection and measurement,cytophotometry.CYTOTECHNOLOGIST / Will be responsible for all phases of preparationand interpretation of cytological specimens, both as received directly fromthe clinic and after special processing in the laboratory. American Societyof Clinical Pathology certification in CYTOTECHNOLOGY with at leasttwo years' post-certification experience in a clinical cytopathologylaboratory.CELL BIOLOGIST / A senior position involving the supervision and coordi-nation of a research team responsible for cytochemical processing andanalysis of cervical-vaginal material, including development of newquantitative procedures. Ph.D. or M.D. with proven research ability.Familiarity with cytochemistry, cytophotometry and image analysis isdesirable.CELL BIOLOGIST/BIOCHEMIST / To lead and coordinate a "task group"effort of Cytological Markers for Mutant Cells Sampled from Intact Animals.Suitable markers for mutation are to be developed primarily with fluorescentprobes, and applied to determining mutation frequencies using flow microfluorimetric systems and cell culture techniques. Background should includea Ph.D. or M.D. degree and experience in several of the following areas:somatic cell mutations and markers; cell culture, immunologic, and enzy-matic techniques, fluorescence methods, flow systems, protein chemistry,cytophotometry, mutagenesis, animal biopsy and dissection.BIOPHYSICIST/BIOMEDICAL ENGINEER / A senior position involvingsupervision of others, with responsibility for analysis of cervical-vaginalcells by flow systems methods, instrumentation design, and data analysisby computer methods. Ph.D. (or M.S.) with broad general physical sciencebackground and experience with biomedical applications.CYTOCHEMIST/ORGANIC CHEMIST / Responsibility is chemistry of cellstaining emphasizing quantitative fluorescent methods for'flow systemsapplications, including enzyme, protein, membrane, immunofluorescent,and nucleic acid staining. Ph.D. with experience in broad areas of cytochem-istry and organic chemistry sy,nthesis and proven ability to interact withother scientists.BIOLOGIST/CELL BIOLOGIST / Involves the application of instruments forbiophysical cytology to the investigation of chromatin structure and otherproblems, and requires close collaboration with other investigators. Ph.D.with broad experience in optical microscopy and in quantitative cytochemistry.Candidates for these positions should forward a curriculum vitae andbibliography to:

Personnel Department,LAWRENCE LIVERMORE LABORATORY, University of California,P.O. Box 808 (SC064), Livermore, California 94550.The LAWRENCE LIVERMORE LABORATORY is an equal opportunity/affirmative action employer and welcomes applications from womenand minority candidates. U.S CITIZENSHIP REQUIRED.

* University of CaliforniaI LAWRENCE LIVERMOREl-ABORATORY

0ow-

1216

IllllllllllHllil POSITIONS OPEN |||||||||||||||||

GEOPHYSICISTThe Lamont-Doherty Geological

Observatory of Columbia Univer-sity announces a position with theseismology group as a ResearchAssociate or Senior Research As-sociate. Candidates must have astrong background in seismic in-strumentation and data analysisand will be expected to lead exist-ing and initiate new programs ofresearch involving observations ofearth strain, tilt, and long-periodseismic waves. Qualified candi-dates are invited to submit aresum6 of their qualifications,publications, names and addressesof three references by August 15,1974, to Dr. Lynn R. Sykes, La-mont-Doherty Geological Observa-tory, Palisades, New York 10964.Columbia University is an equalopportunity employer.

Pr'

Title: Assistant ProfessorDescription: Special Assistant Professor-ship for reproductive physiologist withPh.D. with experience in blood flowmeasurement, radioimmunoassay, neu-roendocrinology, bioassays and mecha-nism of hormone action. Postdoctoralexperience desired. Resume, reprints ofpublications, and three names of refer-ences should be sent no later than 1July 1974 to Dr. Lloyd C. Faulkner, De-partment of Physiology and Biophysics,Colorado State University, Fort Collins,Colo. 80521.

CSU IS AN EQUAL OPPORTUNITYEM PLOYER.

ETHNIC MINORITIES AND WOMENARE ENCOURAGED TO APPLY.

In order to assist CSU's efforts tcomeet its equal opportunity goals, ethnicminorities and women applicants are en-couraged to identify themselves by add-ing an attached sheet.

SCIENCE, VOL. 184

BAMFIELD MARINE STATIONPOSITION OF DIRECTOR

The Management Council of the WesternCanadian Universities Marine BiologicalSociety (WCUMBS) invites applicationsfor the post of Director of its MarineLaboratory at Bamfield on the westcoast of Vancouver Island, British Co-lumbia, Canada. The position will befull-time but the incumbent will probablybe associated in an honorary or part-time capacity with one of the memberUniversities of WCUMBS (Alberta, BritishColumbia, Calgary, Simon Fraser or Vic-toria). Salary will be negotiable.Applicants should supply a brief biog-raphy including degrees, attainmentsand experience, a list of publications,the names of 3 referees and a statementof research interests. Views on the func-tions of a new marine laboratory servinga group of universities would be helpfulto the Selection Committee.Applications close on 31 August 1974and should be sent to Dr. D. M. Ross,President, WCUMBS, c/o Faculty ofScience, University of Alberta, Edmon-ton, Alberta, T6G 2E9, Canada, who willsupply further particulars about the po-sition, the Station and the Society uponrequest.

1 Separationand

- Depression

Edited by> | John Paul Scott

andEdward Senay

This volume brings together contributions from behavioralbiology, animal behavior studies, clinical psychopharma-cology, psychoanalysis, and social systems research and,thus, bridges the gaps between animal behavior modelsand the human clinical situation.

256 pages. Illustrations and tables. A comprehensive index,and references. Retail price: $19.95. AAAS Member price(with check accompanying order): $16.95. ISBN-087168-094-7

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RESEARCHThe Goal: Dynapol was formed to solve the foodadditive problem through use of a unique tech-nology. We are assembling the core scientific,technical, and management teams necessary tocontinue our research programs.The Positions: Our progress has led to an im-mediate need for the following positions:

SR. RESEARCH BIOLOGISTMicrobiology

You should have a Ph.D. in microbiology ormicrobial biochemistry or physiology with 5 to 10years academic or industrial experience to set upand supervise screens to evaluate interaction of in-testinal bacteria and polymeric food additives. Inaddition, you must be able to plan and carry outbasic research programs on microbiological aspectsof macromolecule biomembrane interactions.

SR. RESEARCH CHEMISTOur process development area requires a seniorresearch chemist with a Ph.D. and 3 to 10 yearspolymer synthesis and modification experience,plus some exposure to process development and/or pilot plant operation. This position requiresconsiderable knowledge of organic chemistry andoffers supervisory potential.The Results: It's up to you! If you are excited byour pioneering approach to safe food additives andyou want to contribute your unique ideas, joinour team. Submit your resume in confidence to thePersonnel Administrator:

Dynapol1454 Page Mill RoadPalo Alto, Calif. 94304An Equal Opportunity Employer

Alm-

14 JUNE 1974

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NATIONAL INSTITUTESOF HEALTH

DIRECTORNATIONAL HEART AND

LUNG INSTITUTEThe National Institutes of Health invites nominations and ap-plications for the position of Director, National Heart and LungInstitute (NHLI). One of ten research Institutes at NIH, NHLIsupports research and research training programs by grants andcontracts with academic and industrial institutions. NHLI conductsand supports basic and clinical research related to cardiovascularand pulmonary disease.

Applicants should have a doctorate in science, medicine, or both,and demonstrated achievement and stature in a relevant bio-medical discipline. The M.D. degree will not be considered as anabsolute requirement. The position requires a high degree ofjudgement, leadership and executive ability.

Position is top U.S. Civil Service grade, located in Bethesda,Maryland. Lettprs of application, with curriculum vitae and listsof publications and references, should be sent to the Chairman ofthe Search Committee:

Robert S. Gordon, Jr., M.D.Director of the Clinical CenterNATIONAL INSTITUTES OF HEALTHBuilding 10, Room IN-212Bethesda, Maryland 20014

Letters must be received by 21 June 1974 to be considered.

An Equal Opportunity Employer

IIII

.; P0SIIONS OPEN

NEUROPHARMACOLOXY-- Applicationasare invited for a position in neuro-pharmacology at the ASSISTANT or ASSOCIATE- PROFESSORSHIP level. Experience in teaching is

desirable. The successful applicant will be ex-pected to develop active research program, andassist in teaching medical and graduate students.Please send complete curriculum vitae, includingpublications, and arrange to have sent three lettersof recommendation to: Dr. Rubin Bressler, De-partment-of Pharmacology, University of ArizonaCollege of Medicine, Tucson, Arizona 85724.The University of AriZona is an equal opportunityemployer.

THE UCLA NEUROPSYCHIATRIC INSTI-TUTE conducts multidisciplinary educational and,scientific programs related to neurological andpsychiatric illness and mental retardation.

Occasional openings available for academicpersonnel in biological, behavioral and socialsciences, and health-related professions. Equalopportunity employer with vigorous affirmativeaction program. Applications from women andmembers of minority groups receive top priority.

Write: L. J. West, M.D., 760 Westwood Plaza,Los Angeles, California 90024.

PHARMACOLOGIST-PHYSIOLOGISTNew Medical school seeks top-quality teacher

and scholar to teach pharmacology and somephysiology to first-year medical students in anintegrated organ-system self-instructional program.Ph.D. or equivalent required. Medical schoolexperience, postdoctoral training and teachingexperience are highly desirable. Rank open. Sendcurriculum vitae and ask three referees to writeon your behalf to: Dr. John H. Caster, Co-ordinator-Academic Appointments, Box 5, Schoolof Medicine, Southern Illinois University, Carbon-dale, Ill. 62901.

An Equal Opportunity/AffirmatireAction Employer

PHYSIOLOGISTOpportunity to develop physiology component ofan integrated curriculum in a baccalaureateprogram for new primary health care practi-tioners-health associates. Assistant professor level.An Equal Opportunity Employer. Send curricu-lum vitae to: Archie S. Golden, M.D., Director,Health Associate Program, The Johns HopkinsUniversity School of Health Services, 624 NorthBroadway, Baltimore, Maryland 21205.

PREDOCTORAL AND POSTDOCTORALAPPOINTMENTS IN GERONTOLOGY

For training and research in physiology, biophys-ics, biochemistry, or biology of aging. NIH-established stipends include dependency allow-ances. U.S. citizenship or permanent residencerequired. Immediate appointment.

Box 308, SCIENCE

UNIVERSITY OF NEW BRUNSWICKDepartment of Biology

SCANNING ELECTRON MICROSCOPYTECHNICIAN

Required to operate and maintain aCambridge S4-10 scanning electron mi-croscope and related equipment. Dutieswill include specimen preparation, pho-tography, and possibly some transmis-sion electron microscopy. Most workwill be with biological material.

Previous experience of scanning elec-tron microscopy would be advantageous,but training will be given where necessary.

Starting salary up to $9000 dependingon qualifications and experience.

Application with names of two refereesto Dr. W. D. Seabrook, Department ofBiology, University of New Brunswick,Fredericton, N.B., Canada.

U POSITIONS OPEN El§ FSLLOWSIP U

RADIATION BIOLOGIST/BIOPHYSICISTPostdoc to study in vivo radiation-inducedDNA damage and repair mechanisms in normalnondividing brain and brain tumor. Experiencewith radiation sources, isotopes, ultracentrifuga-tion, neurobiology, tissue culture, enzyme biochem-istry and biostatistics desirable. Salary greater than$10,000, position available immediately. Dr. K. T.Wheeler, Brain Tumor Research Center, Depart-ment of Neurosurgery, University of CalifomiaMedical Center, San Francisco, Calif. 94143.

RESEARCH ASSOCIATE POSITIONFor person interested in the primary structure

of animal virus RNA. Experience with Sanger'stwo-dimensional electrophoresis technique re-quired. Funds available for 3 years. Apply withcurriculum vitae and references. M. E. Reich-mann, Department of Microbiology, Universityof Illinois, Urbana, Illinois 61801.

RESEARCH ASSOCIATEPh.D. in Microbiology with research and/or

clinical experience in the subspecialty of mycol-ogy. Please submit resumne and references to:Wadley Institutes of Molecular Medicine, 9000Harry Hines, Dallas, Texas 75235, Attention:J. E. Robertson/Personnel Director, (214) 358-4111, ext. 366 and 367.

RESEARCH ASSOCIATEBiophysicist or biomedical engineer with

physiology background to take charge of researchprogram to develop carbon dioxide laser surgicalinstrLlmentation and techniques.

Dr. Hugh BeckmanSinai Hospital of Detroit6767 West Outer DriveDetroit, Michigan 48235

RESEARCH TRAININGPostdoctoral training positions in Respiratory

Physiology are open at the Department ofPhysiology, University of Florida. Emphasis ison basic research in various aspects of respira-tion. An opportunity is provided for experiencein clinical applications. Information: Dr. A. B.Otis and Dr. Marc Jaeger, Department of Physiol-ogy, College of Medicine, University of Florida,Gainesville 32610.

TERRESTRIAL ECOLOGISTUNIVERSITY OF MINNESOTA,

TWIN CITIES CAMPUSApplications are invited for a temporary posi-

tion beginning in September 1974 to teach anupper-division introductory course in ecologyfor one quarter and an advanced course innutrient cycling and energy flow in terrestrialecosystems. Appointment will be at the rank ofAssistant Professor for 1 year; the possibilityof reappointment remains open. Please sendcurriculum vitae and three references to Dr.E. J. Cushing, Chairman, Search Committee,Department of Ecology and Behavioral Biology,University of Minnesota, St. Paul, Minn. 55101.

An Equial Emnployment Opportunity; Applicationsfrom Women and Minority Persons Encouraged.

N.I.H. TRAINEESHIP INVETERINARY ANATOMY

Academically interested D.V.M.'s are invitedto apply for graduate training positions involvinggraduate studies, research and teacher trainingleading to the Ph.D. degree. Apply to:

Alvin F. Weber, D.V.M., Ph.D.Professor, Department of Veterinary Biology

234 Veterinary Science BuildingUniversity of MinnesotaSt. Paul, Minn. 55101

TUMOR IMMUNOLOGISTSenior scientist, experienced in assessing cellular

immune reactivity. To conduct independent re-

search and to participate in collaborative, multi-disciplinary programs in tumor biology. Sendcomplete curriculum vitae, reprints, and names

for references, to

Box 309, SCIENCE

iiiiiii[mininilmiimiil liiiiiiiiiiiiiiluluniimis

SCIENCE, VOL. 1841218

L-Ornithine-UL-C-1 4220 mCi/mM 100 isCi/$150

CALIFORNIA BIONUCLEARCORPORATION

7654 San Fernando RoadSun Valley, Calif. 91352 (213) 767-4400

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POSTDOCTORAL FELLOWSHIPPostdoctoral fellowship in Microbiology. MountSinai School of Medicine of the City Univer-sity of New York, Department of Microbiology,is awarding an NIH-sponsored fellowship forpostdoctoral research in any of the followingareas: Immunoglobulin structure and function, cellorganelle biochemistry, microbial control mech-*..anisms, temperate phage regulation, viral gene-tics and immunology, viral biochemistry. Avail-able 1 July 1974. Send curriculum vitae to: Dr.Ed Kilbourne, Chairman, Department of Micro-biology, Mount Sinai School of Medicine of CityUniversity of New York, Fifth Ave. at 100 Street,New York, N.Y. 10029. An equal opportunityemployer.

TWO-YEAR POSTDOCTORAL FELLOWSHIPavailable immediately. Emphasis on therapeuticratio studies of multiple modality treatmenteffects on normal cell population dynamics invivo, and on an in vivo/in vitro murine tumorsystem. Outstanding clinical oncology interest andrapport. Applications from demonstrably effica-cious candidates are solicited. S. Lesher, Direc-tor, Cancer Research Unit, Allegheny GeneralHospital, 320 East North Avenue, Pittsburgh,Pa. 15212.

POSTDOCTORAL FELLOWSHIPAvailable July 1974 for candidate with back-

ground in Cell Biology or Electrophysiology whois interested in transport phenomena in cell mem-branes. Submit curriculum vitae and two lettersof recommendation.

V. Everett Kinsey, Ph.D., DirectorInstitute of Biological Sciences

Oakland UniversityRochester, Michigan 48063

POSTDOCTORAL FELLOWRegulation of mammalian protein synthesis and

turnover. Please send r6sumd and two letters ofrecommendation to Dr. James W. Drysdale, De-partment of Biochemistry, Tufts Medical School,Boston, Mass. 02111.

UNIVERSITY OF QUEENSLANDPOSTDOCTORAL FELLOWSHIP

Solid-state physicist with experimental or the-oretical experience in semiconductors to join solarenergy project on photovoltaic cells using or-ganic materials.

Salary in range $A8,698 to $A14,308 per annum,plus 10 percent superannuation.

Start early 1975. Appointment 1 year, renew-able, maximum 3 years.Write to Professor L. E Lyons, Department

of Chemistry, University of Queensland, St. Lucia,Brisbane, Australia, Q. 4067.

||||II||II|I|IIIIIII|II|II|I TR'AININGSESSION |

UNIVERSITY OF CHICAGOMULTIVARIATE ANALYSIS OF

QUALITATIVE DATA TRAINING SESSIONSeptember 4-7, 1974

Study in this session will focus on three powerfulcomputer programs for the analysis of qualitativedata by log-linear models and item analysis andscale construction. The session will include lecturesand computer lab work. Write: R. D. Bock, Universityof Chicago, 5835 S. Kimbark Ave., Chicago, IL 60637.

11IlhlI MARKET PLACE I

At last a balance with just a panand a result. No Knobs.No adjustments. No beam.Weighing has never beensim pler.Or faster.Two balances, to be prec.ise.Electronic top loaders. Both new.Both from Mettler. The PT1200 andthe PS1200. And with each, a singlecontrol bar performs all balance

operatingfunctions-

- on/ off, zero set,C - and tare-all-in-

one. There are noother controls or

knobs to be used-ever.Now you can place your sample

on the weighing pan and read theresult. In less than two seconds. Inlarge, lighted, easy-to-read numerals.Without adjustments. Withoutapproximations. Weighing is faster,simpler. more productive.

TOUCH CONTROL. With a touch Both the PT1200 and PS1200 haveof the control bar you turn the a weighing range of 1200 g-withbalance on or off, reset the readout readability of 0.01 g for the PT1200,to zero, tare the weight of a and 0.1 g for the PS1200.container, or weigh in any number of Rarely does an instrument asingredients. The automatic tare, with revolutionary as the Mettler PT1200built-in memory, accumulates or PS1200 happen. Circle theindividual weight values-and the number for complete details andtotal weight of all added materials specifications. Or writecan be read on the digital readout. Mettler Instrument Corporation,Batching, checkweighing, counting Box 100, Princeton, N.J. 08540.small pieces, and weighing objectsbelow the balance are simple.And fast. 44

DIGITAL OUTPUTS. You neednever pick up a pencil again. Bothbalances are equipped with BCDdigital outputs, facilitating datatransfer for automatic computerprocessing. You can also connectprinting devices, tape punch, desk-top calculators, weight-countconverters, and remote readouts. Ifthe balance is overloaded, there is noreadout, and data transfer is blocked.

Circle No. 204 on Readers Service Card

always gives youso much more.

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HA 67CO5919MCMASLIBR99 N 4774MCMASTER UNIV..IBRARIAN MRS ROBI NOWHEATHNSCI Lis

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The AOG FluoreStar V20 is about the most compactmicroscope package you can use for fluorescencetechniques. A mercury-vapor arc lamp is enclosedin the base with easy-to-reach light centrationcontrols at front and side. All exciter, neutraldensity and barrier filters are contained in rotatableturrets for easy dial-in filter change convenience.And there's room for additional filters to suit yourpersonal preference.Two condensers, allowing quick interchange fromdarkfield to conventional brightfield, assure multipletechnique capability.

How about that?A fluorescencemicroscopein this little

space.

All this, plus the AO infinity-corrected opticalsystem for outstanding contrast, resolution andcolor correction, gives you a lot of microscope inthis little space.For more information, see your AO representativeor write for detailed literature.TM Reg., American Optical Corporation

W AMERICAN OPTICALCORPORATION

SCIENTIFIC INSTRUMENT DIVISION * BUFFALO, N.Y. 14215

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Circle No. 195 on Reoders' Service Card

VPt.