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BEHAVIOR AS AN ECOLOGICAL FACTOR(Benchmark Papers in Ecology) Edited byDAVID E. DAVIS, North Carolina State Uni-versity. A compendium of landmark papers whichhave influenced significantly the direction of thestudy of animal behavior as it relates to theenvironment. Traces the study of behavior fromcomplete separation from environment to theultimate state of behavior study of an entirepopulation. A Dowden, Hutchinson & Ross Pub-lication. Distributed by HALSTED PRESS/WILEY 1974 400 pp. $24.00

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The cotiinital maivgins of the world constitutetle lsriest and most impressive peysiographicfeatuire of the earth's suirface. Becauise of theirfundamental geological significance. continentalmargitis have been the subject of intensive re-search in recent years. A summary of these find-ings, related to both recent and ancient cotl-tinental miargins, is the subject of this book.Published by Spiinger-Verlag New York Heidel-berg BeiIini. 1974. xii. 11)09 p. 730 itis. cloth$34.80)


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Suppe's book-length introduction surveys and cri-tiques the mainstream of thought in the philoso-phy of science from the 1930's to the present, in-cluding a critical account of the development ofthe positivistic analysis, the attacks which led toits rejection, and the alternatives proposed byHlanson, Kuhn, Feyerabend, Toulmin, Popper,Bohm, Beth, and others. Part 2 presents papersand discussions of a major symposium whoseparticipants included Carl G. Hempel, 1. BernardCohlen, Patrick Suppes, Bas C. van Fraassen,David Bohm, Hilary Putnam, Thomas S. Kuhn,aind DuLdley Shapere. Published by the Universityof Illinois Press, Urbana. 1974. 696 pp. $22.50.


BILAYER LIPID MEMBRANES (BLM): Theoryand FPractice, by IIl. Ti Tien

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Biochemiist. Ph.D., graduating 1975. Researchinterest: metabolism of cells in tissue culture.[aLiughlt college level. Research experience: tissueCLulture, metabolism, protein isolation-purification.i-adioisotope methodology. Industrial or acadcmicposition. Available January 1975. T. LeonardSwanson, 43115 Poppleton, Omaha, Nebraska68105. X

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Bioaidly traimied Genteticist. Ph.D. (1965). Twoyear postdoctoratl. Outstanding teachet-, 16 yearsotf professional experience (11 years of full-timeLiiiivers:ty expcrience). Special interest in tunder-gracltiatie progmams. Seeks academic position forSeptemnbet. Box 499. SCIENCE. 12/6

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M-arine Biologist. Ph.D.. 1974. Female. Rescarchanid tpuiblications in timicrobial ccology. paleo-ccolots , and potititioti. Specialist in diatoms.D)esires possiti( s itll emphasis ort reseat-cli. Box

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Nlicrobiologist, Ph1.D. Tcil catrs of experience ittese.irch atad te.iching in microbiall physiologsanld gctctics. Ptiblicationls. Scekinig positiotn inlitlchitg .tnid/or research. Box 5(03, SCIENCE. X

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Neuroaniatomist/Electron Microscopist. Ph.D.Postdoctoral abroad. Presently on medical faculty.Desircs teaching/research position. Research in-tcl-cst: developmental and pathological changes innieuroglia. Publications. Teaching experience: neu-roanatomy anid neurophysiology, histology, andgross aniatomy. Box 504, SCIENCE. 11/22, 12/6

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ANI1MAL PHYSIOLOGIST

Positioin ait aissistant or associate profcssor levelavailable 13 January or 19 May 1975. Primaryrcsponsibility is in coordination of basic sciencesinstruction in PHYSICIAN ASSISTANT progranm.Secondars i-csponisibility is undergraduate and/orgraduate insti-uction in physiology. Ph.D. re-quired, anld teaching experience is dcsirable. Sendapplications to: Dr. William Davies, Chairman,Section of Biological Sciences, Purdue Universityat Fort Wayne, Fort Wayne, Indiana 46805.Pun/-tite Unoi ersity i's an aflrmathi e action,, equaloppor(tiitit, emiployer.

ASSOCIATE OR FULL PROFESSOR OF BI-OLOGY. FoLur-year college seeks a senior lcvclpcrsoni. Ph.D. requlired. Applicants muLst supplyevidcnce of stuccessful teaching and research ex-pcriencc. Excellent salary and fringe benefits.P)osition available 1975. Eqial Opportioiity/Affir-mativi e Action LEiplo) er. Apply wsith resume to:Dr. Jack Schlein, York College of the CityU'niversity of New York, Department of NaturalSciences., 150-14 Jamaica Avenue, Jamaica, N.Y.11432.

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|||||||||||||||POSITYIONS WANTrED|||||||||||||||Biochemist. Ph.D. 1961. Publications. Lipids,metabolisms. enzymology, drug resistance. naturalproducts, and atherosclerosis research. Clinicallaboratory, lipids, atherosclerosis reseaich pre-ferred. 5071 Randall, Montreal, Qulebec, Canada.

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|||||||||||||||POSITIONS WANTEDi||u||||||Sl|||||i||l||||iIInterdisciplinary. Biophysicist, Ph.D. 1963. De-sires situLation in an interdisciplinary scienceprogram. Publications in origin of life and cauiceri-esearch. Many years of physics teaching and re-cently etivirouimcntal courses. Can add wide ex-periences in biology and physics to program.Box 49(0, SCIENC E. 11/8

ASSISTANT PROFESSORS, PHARMACOLOGYAND THERAPEUTICS. Ph.D. or M.D.; cliniicalexperience or orictitation desirable; opportunitiesto collaborate in clinical research; teaching ex-petrience and interest in medical education essen-tiil-, research iin ficlds related to autonomic andc.irdiovascuLlar ss stems, smooth muscle, nleuro-phlarinacolo"y, cndocrinies, or drug metabolism.Start July to l)ecember 1975. Send curriculumvitale, puLblication list, detailed plan of researclhpi-ogram, and namcs anid addresses of referenicesto Director, Department of Pharmacology andTherapetutics, Room 5006, University of Cincin-nati College of Medicine, Cincinnati, Ohio 45267.WVomic.nt aidi notoritie.s are enzcoiuraged to apply.

ASSISLANT PROFESSOR OF PATHOLOGY

D.D.S., NM.D.. and, or Ph.D. in Department ofP.ithologs, University of Pennsylvania, School ofDerit.il Mledicine, beginining 1 July 1975. Depart-inic'ttl faculty prcsently consists of individualscariying ouLt rescarch in various areas of immuno-pathlolLgy, conldutcting a diagnostic service in oralp.itlology, and teachinig general and oral pathol-ogs to pre- aind postdoctoral students. Appli-catits will be expected to initiate independent re-sc.irch and participate in teaching programs. Ifdesired, applicant nmay also take part in diagnos-tic service. Send ctirricuLlum vitae to: N. S.Taichman, D.D.S., Ph.D., 4010 Locust Street,Philadell)hia, Pennsylvania 19174. Atu equial op-po rtiitii(i emplt/oi i.r

BiologistsCELI, BIOLOGY/BIOCHE.NIISTRY/

ELFCTRON MIICROSCOPY TECHNICIANS

Rescau cli firmii in Washiniigtoni, D.C ., area has po-sitioIls available for personls witlh cxperience innI:anrinlitn Ccll cultuLre, vii-ology, lipoprotciri iso-lation, and anialysis tind electron microscopy. SalaryCtnitnst'ilateIS ss titi degree of expcrience aind cdtL-cattionad ba.ckgrouLnd. Interested indi iduLals shotuldscnd cuLrriculunm sita.e refercnces, and s.alars re-qolircilements in complete conificience to:

MFLOY LABORATORIES, INC.6715 Electronic Drive

Springfield, Virginia 22151Attentioni: Code R30

LEqual Oppoi utity 1Z'inploYr AlMal/Femiale561

11j1jj1POSITIONS OPENI EASSISTANT PROFESSOR

The Department of Environmental Health, Uni-versity of Cincinnati Medical Center, is invitingapplications for an assistant professorship in toxi-cology with specific commitment to the area ofthe carcinogenic, mutagenic, and/or teratogenic ac-tions of foreign chemicals. The person would beexpected to assume responsibility for developinga program of research in one or more of theseareas. This person would also participate in thegraduate teaching program of the department.Send curricuilum vitae and three references to Dr.Paul B. Hammond, Department of EnvironmentalHealth, University of Cincinnati Medical Center,3223 Eden Avenue, Cincinnati, Ohio 45267. AnAffirnative Action/Equial Opportunity Employer.

ASSISTANT PROFESSORApplications are invited from qualified persons

lholding Ph.D. and/or M.D. degrees to fill a newposition, preferably at the Assistant Professorlevel, in GROSS AND MICROSCOPIC ANAT-OMY, in the School of Basic Medical SciencesUrbana-Champaign. Appropriate departmental pre-doctoral or postdoctoral training is essential.The position will carry a joint appointment in

one of the scientific departments on this campus.Teaching duties relate to curriculum developmentand supervision of medical student learning in anindependent study program. Candidates must havedemonstrated their capacity for original researchas evidenced by publications of high quality.The University of Illinois is an Affirmnative Ac-

tion/Equial Opportutnity Employer and encouragesapplications frotti nmembers of minority groupsand women.

Send applications, including cturriculum vitae,publication list, important reprints, and at leastthree letters of recommendation to Dr. Ray L.Watterson, Chairman, Search Committee, 515Morrill Hall, University of Illinois, Urbana, Illi-nois 61801.

ASSISTANT PROFESSORSHIPS INCELLULAR IMMUNOLOGY, MICROBIALREGULATION, AND PHYSIOLOGICAL

ECOLOGYA rapidly growing, well-equipped modern de-

partment of biological sciences located in thehills outside Baltimore is seeking scientists withpostdoctoral research experience who have dem-onstratedl their ability to initiate a vigorous re-search program. Candidates must also have acommitment to quality graduate and undergrad-uate teaching. SLubmit curriculum vitae, bibliog-raphy, names of suggested referees, and a de-scription of research interests to: Dr. Thomas F.Roth, Chairman, Search Committee, Departmentof Biological Sciences, University of MarylandBaltimore County, Catonsville, Maryland 21228.An Equal Opportunity, Affirmatir-e A ctioni Employer

ASSISTANT PROFESSOR/BIOCHEMISTRYPosition available September 1975. Candidates

should be capable of effective graduate or under-gradLuate teaching and should have demonstratedtinusual promise in independent research. Post-doctoral experience and published work are re-quired. Preference will be given to applicantswhose research interests and experience are re-lated to the broad mission in fundamental re-search of the Kansas Agricultural ExperimentStation. Send resume, list of publications, de-scription of anticipated research, and three ref-erences to David J. Cox, Head, Department ofBiochemistry, Kansas State University, Manhat-tan, Kansas 66506. Kansas State University is anequtal opportunity/affirmative action employer.

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CLINICAL APPOINTMENTS

* UNIVERSITY OF HEALTH SCIENCESTHE CHICAGO MEDICAL SCHOOLMajor expansion of this 62-year-old institution and the forthcomingmove to a new campus have created openings for Clinical FacultyChairmen and instructors in the Medical School.QUALIFICATIONS-Candidates must possess the M.D. degree, beBoard Certified in their specialty with experience in an academicmedical center.ORGANIZATION-UHS/CMS is a private, nonprofit, nonsectarian,coeducational university and an equal opportunity/affirmative ac-tion employer.APPLICATION-Candidates should direct inquiries to:

Office of the DeanUniversity of Health Sciences/The Chicago Medical School2020 West Ogden AvenueChicago, Illinois 60612

562

IIIIIIIIIIIIIlIIIIIlIIIlIIIIIIl POSI' IONS OPEN I!|||||||||||111111111111111111iPOSI' ONS OPENj0fjgjjj1Jjj1j"jjjjjBIOCHEMIST-Ph.D. or equivalent. Must havelaboratory experience in vitamin D chemistry oraction. To establish a vitamin D-focused labora-tory program in conjunction with universitycalcium researchers. Position at Research Insti-tute, The Hospital for Sick Children, Toronto,with faculty appointment in Department of Bio-chemistry, University of Toronto. Salary com-mensurate with experience and qualifications. Ap-ply before 1 December, enclosing curriculum vitaeand names of two referees, to The Secretary, Re-search Institute, The Hospital for Sick Children,555 University Avenue, Toronto, Ontario, M5G1X8, Canada.

The Department of Biology, New Mexico StateUniversity, invites applications for a faculty posi-tion preferably in the areas of microbiology oranimal physiology. Ph.D. required. Duties includeboth undergraduate and graduate teaching andestablishment of a vigorous research program.Rank is open.New Mexico State University is an equal op-

portunity, affirmative action employer and candi-dates front all races and ethnic backgrounds areencoutraged to apply. Send curriculum vitae andnames of three references to Dr. J. R. Zimmer-man, Chairman, Department of Biology, Box 3AF,New Mexico State University, Las Cruces, NewMexico 88003.

BIOSTATISTICIAN FOR MEDICAL SCHOOLto deliver curriculum for medical students andserve as consultant for biological scientists. As-sistant Professor level, with at least 2 years ofpostdoctoral experience. Preferred that researchinterests are in biomedical or data base manage-ment areas.

Applicants should send curriculum vitae toDean, University of Illinois School of Basic Medi-cal Sciences, 1205 West California Street, Urbana,Illinois 61801. An Equal Opportunity Employer.

CELL BIOLOGISTApplications or nominations are invited for the

position of Assistant Professor of Zoology. Dutiesinclude teaching in undergraduate and graduatecourses and developing a strong research pro-gram in some area of eukaryote cell biology.Postdoctoral research experience helpful. Appli-cants should submit curriculum vitae, reprints, ashort statement of research and teaching plans,and the names of three references to: Chairman,Department of Zoology, University of Texas atAustin, Austin, Texas 78712. The University ofTexas is an equal opportunity employer.

THE UNIVERSITY OF MARYLANDat CoUege Park

Invites Applications for the Position ofChairman

of the Department of Physics and AstronomyApplicants for the position should have admin-istrative, research, and teaching experience. TheDepartment of Physics and Astronomy currentlyhas 150 faculty members, 105 technical staff, and64 nontechnical staff. There are over 200 under-graduate students and approximately 300 graduatestudents enrolled in programs leading to the B.S.,M.S., and Ph.D. degrees. Nominations, applica-tions, and inquiries should be addressed to: P. F.Cunniff, Chairman of the Search Committee, Officeof the Division of Mathematical and PhysicalSciences and Engineering, University of Mary-land. College Park, Maryland 20742. The univer-sity is an equal opportunity/affirmative actionemployer.

ogy, University of Michigan Medical SchiMedical Degree-Board Certified in Anatomic;Clinical Pathology. Experiencc in a ClinChemical Laboratory desired. Must be ableteach medical students anid residents. Send restto Box 506, SCIENCE.A V(ndiscriminatorY Affirmaitive Actiont Emuph

SCIENCE, VOL. I

II lfvlivlli ll l olill§wEW Hlll1lllllulllllllllgllgllllll

UNIVERSITY OF WISCONSIN-MADISON. ThtDepartment of Chemistry is seeking application!for an assistant professor position in InorganhChemistry. The primary requirement is promistof excellence in research and teaching. Preferencewill be given to persons with interests complementary to present staff activity. Transition element chemistry with biochemical leanings is oparticular interest to us. The teaching dutie!associated with this position include participatiorin the first-year chemistry program and upperlevel inorganic and graduate courses on a rotatinibasis. The University of Wisconsin is an equaopportunity employer with an Affirmnative ActiorProgram and welcomzes applications from womerand mainority candidates. Applicants should senccurriculum vitae and names of three references tcE. M. Larsen, Department of Chemistry, Roon7341, The University of Wisconsin-Madison, Madison, Wis. 53706.

CIRCULATORY SHOCK RESEARCHPostdoctoral position available immediately. Research associate level or junior faculty rankdepending on credentials. Applications are requested from individuals trained in circulator:shock-reticuloendothelial system research. Thbcandidate should be thoroughly familiar witlsmall animal surgery, circulatory shock animZmodels, electronic instrumentation, and reticulcendothelial system function. A strong biochemicaimmuinological background with isotope traininis essential. Responsibilities include teaching tirdergraduate and graduate cout ses in physiolog)Salary $9,000 to $14,000. Send curriculum vitaand three letters of reference to: Dr. B. MAltura, Department of Physiology, Box 31, StatUniversity of New York, Downstate MedicsCenter, 450 Clarkson Avenue, Brooklyn, Ne'York 11203.

THE HORMEL INSTITUTE OF THE UNVERSITY OF MINNESOTA invites applictions from qualified individuals for the position

EXECUTIVE DIRECTORof the Hormel Institute which is locatedAustin, Minnesota. The Executive Directorresponsible for overall administration of an iistitute with 80 to 90 employees, including 20 4

whom have academic rank. Candidates for thposition should be recognized authorities in tIlipid field, and should have at least 12 yearsresearch experience in the field. The directorexpected to maintain an active research progratClosing date for receipt of all materials isFebruary 1975. Send curriculum vitae, a listpublications, and names of three referees to DJ. E. Gander, Chairman, Search Committee, Dpartment of Biochemistry, University of Minnsota, St. Paul, Minn. 55108.

FACULTY POSITIONS-PATHOLOGYDEPARTMENT

UNIVERSITY OF CALIFORNIA, SAN DIE(1) Immunohematologist for Chief of Vetera

Administration Hospital Blood Bank. Faculty apointment. M.D. Minimum of 2 years of blobanking and research experience.

2) Assistant Professor, Pathologist, M.D. Bacground in biochemistry-oncology.

Please send curriculum vitae and list of ptlications to Averill A. Liebow, M.D., ChairmsDepartment of Pathology, University of Cgfomia, San Diego, La Jolla, California 92037.The University of California is an Equial C

portunitv. Affimitativ e Action Employer.

HEALTH PHYSICIST/RADIATION SAFETOFFICER

To head Radiation Safety Department at Mecal/Dental/Graduate School, Research CentHospital. and Clinics. Principally service wesome teaching responsibility with possible factappointment. Duties include administering aRSO function for htuman use and broad resealicenses and safety work with x-ray machinPh.D. in health physics or related field andleast 4 years of relevant experience in heaphysics, preferably on a campus. We welcowomnen and nminority grouip applicants. Replytention of Dr. Richard P. Spencer, c/o IDaniel J. Strom, Radiation Safety Office, Lversity of Connecticut Health Center, FarmingtConnecticut 06032, or call (203) 674-2250.

INSTRUCTORPosition avazilable in the Department of Patl

11 ..... I., ..........I....I......I

lltllhIIIll|IiH|iIll|Ii1||i P'OSITIONS OPENl|||DEN OF THE SCHOOL OF MEDICINEU1NIFORMIED SERVICES UNN'IERSITY

1hlI Unitfo-med Services Universits of theHealth Sciences invites applicationis from anidnominations of qualified individu.ils for the posi-tioll of DEAN OF THE SCHOOL OF MEDI-CINE. Eacih candidate is requlired to submit aCutr-retit curricLIltim vitae or resume. Qtialificationsmnist include cvidenlcc of strong administrativeaca.demnic ability, leadership in teaching, research,atid experienice in workinig with federal agencies,p.articul arly the nillitary services or the Depart-roent of Detense. The Uniformted Sert ice.% Utii-veirsiti of the Health .Scietic'es is air eqlial oppor-tunitt /affirmative actiotr emtplot cr. Address allcorrespondence to Chairman of Search Committee,c/o Office of the President, Uniformed ServicesUnisersity of the Health Sciences, 6917 ArlingtonRoad, Bethesda, Maryland 20014. (Telephone: 301-227- 1990).

DEANSCHOOL OF ARTS AND SCIENCE

CLAIRKSON COLLEGE OF TECHNOLOGYinvites applications and nomitiations for the posi-tion of I)ean of the School of Arts and Science.This scliool inciludes departmcnts or programs inbiology, chemistry, physics, mathlematics, huImani-ties, anid social sciences. Baccalaureate degreesare offel-ed in all departmiienits. Master's and doc-toral degrec programs are offered in chemistry,physics, and mathematics. The earned doctorate,administrative ability, and outstanding tcaching.Mid r-esearch experiencc .tre desircd. Send resuJmesto H. L. Shulman, Vice President and Dean ofEngineering. Clarkson College of Technology,Potsdam, News York 13676.

Au etitial oppot ttitY/aflirmatii e actioti emttployer

FNV IRONMENTAL GEOLOGIST

'Fltc De''partmncnt of' Earth Sciclncs at Caise Wcst-ciii Reserve University inivites applications for aposition .it tfte Assistanit or Associatc Professorlevel itt Environmiiiental Geology. The poisitioninvilvcs resea.rch anrd teachinig at the unidergr.iduL-itc :uncd gr.udUaite level. Competence in the areasof ensvironnricrital gcology, stratigraphy, sedimen-t.ationr, uind sti tictLural geology is dlesired. QuLalifiecitpphiCaIitS Shur0Id send resunme, i-efer ences, andptUbticutitirts to Psrofessor Wilbert Lick, Depart-ment of Farth Sciences, Case Western ReserveU niversity, Cleveland, Ohio 44106.

A etqliiCal Ofpiotrtimttityt emptijilover

EXECUTIVE SECRETARY[lie International Great Lakes Fishery Commis-sioin, conicernicd vstith sea larmprey control aridgcrneral itsczfrcii :rnd mlanilagement cof fish stocks.seceks a senio- fishery addministrator, universitygradUaute, niirlimtiln of 1()years of fishery expet-i-circe to administer the Coninission Office and actus coordinrating and liaiison otficer inr dealing vs ithoperatirig agcticies. Salar-y $30.000 upward, neg,o-tiablc depcndinig oni qurzlilficatioris. Ftirther detailsav.ul,uble from Great Lakes Fishery Commission,

1451 Green Road, P.O. Box 640, Ann Arbor,Michigan 48107.

FISHERY IIIOLOGIST

Afhcuil ty tca.chinrg arid rcsat -cl position vwillhe asvailuble J.anUarry 1975 ini thre areai of fishershioluics aIand population ecology. [)lltieS irClUcheirisolserrierit in tUrndergradUaite and graduate pro-rarms. A Ph. D). is rcquircl. Setirc per sonall cuir-rictulLurmo vitare, procfessional restumn, artid tlireclettets of -eferencc to Dr. NI. NI. Alexander, De-partment of Forest Zoology, State University ofNess York College of Ensironmental Science andForestry, Sy.racuse, N.Y. 13210. Aii fuarul Oppor-uimit v anditAffiririotive Aciotr nlnploYcr.8 NOVEMBER 1974

IlDIiIIiIiIIIII1iIIl1IIID1 POSITIONS OPEN lVIIIIllUIIIIIDIRECTOR, SCHOOL OF LIFE SCIENCES

Applications are ilnvite'd for thle position oflDiicctot of the School of Life Sciences, Univer-sits ot Nehraska-Lincolti. The school, to behoIseCd in1 zi modern rescarch facility ctirrenitly cmn-cler conistrLuction, consists of 6(1 faculty membersotganizdcL inito tihe following sections: (i) Bio-chemistry and Pllysiology; (ii) Cellular Biologyaind Gcinetics: (iii) Microbiology, Immunology, andPlant Pathology; anld (iv) Organlismnic Biology.

hc sLiccC'.sftll aipplicant mcist dlemonstrate sig-liitifcant achisvement aIs a researchi scientist, abroad toler.ance for all areas of biology, anid evi-detnce of admiiinistrativc potcntial.

Tlie Utlii ersitj of Nebraska is ai ei,uial oppor-t0tmitw, (aftirmative actioni) eiplo er. Applications(accomp.,nied by a cuLrricultIm vitae and the namesof fouLr references) or requLCsts for further infor-mation shotild be addressed to Professor R. H.Meints, Chairman, Search Committee, School ofLife Sciences, University of Nebraska-Lincoln,l,incoln, Nebraska 68508.

ECOLOGISTTUFTS UNIVERSITY

f- acuLlty position available September 1975. Weseek applicants with gradtLiate training in popula-tion dynamics, patteins in the distribution ofspecies, and community interactions. Candidatesshould have demonstrated itndependence, original-ity, and excellence in teaching and research.Dtities inCltide: sharing teaching in a generalecology course and an introductory biologycouLrse, offering a couLrse in one's specialty, con-ductiing rcsearch in that specialty, and directinggradciate students in field and laboratory work.The appointment will be at a level commelnsuLratewith expericnce atld ability.

Send resuLme, reprints, a brief statement ofLttittre research plans, and three letters of refer-ence to:

Dr. Benjamin DaneChairman, Search Committee

Department of BiologyTufts University

Medford, Massachusetts 02155

ApIplicatiott daczfi linc: 1() Janiuars 1973.

Tofuts Uiiii ersitY is att Equal OpportunitY,Affrmatrio e Action ELmplojer. We etncouirageapplicationry frotpi wsooien atnd niinority-groiupntiteniber.v,

IOWA STATE UNIVERSITYAND AMES LABORAT'ORY

(ATlOMIC ENERGY COMMIISSION)

The Plhysics Departmtient of lowla State Univct-sits ai-ticipates a faculty appointment for anFXPtERIMENTAL HIGH.ENERGY PHYSICISiW hov oUld participate in the undergraduate andgriLiclutC tchzcling programs of the department.Ilie positiotn is cxpected to be at the assistanitpiofessor lesvl, but for ani applicant with otlit-st.iiidiiig quZalifications. a moi e seiiior rank mayhc possible. Seriotus applicants slhouLld be preparecdto .issLunc their duLtiCs n1o laiter th.inl 1 Jtuly 1975.An at lici IssLImption of tfiese dUties wotild here-cferrc d.Applicatnts slhouLld hlold the Pll.D. degi-c ssitlh

zit least sear's postdoctoral expericnce ini ex-pctimenttl high-encrgy physics. Expcrience inpliotogr apltic technliques (bubble chamber.and/orspairi. clhaimber experiments and the associated re-cuitstrLiction and data anialy sis problems) anld alsoin coL1nitei experiments would be highly desirable.Io wa .Statu Utiiv e'ritu is ati EqLqal Opportunitt'ELm plot it with an Afjirmiatii e At toti Prograom.A ppliicatits)t at te especialli wspelcottied frott blackAmricit.s Ati'risant Itiliatis, Spatisil-.siurnaotztedAm}erZicanls,. ati(I ivoineti's.

Applicanrts shotuld scnd cut riculuti1 svitac. to-2Cther s tith CopiCs of puLblished rcseairchl. anld tIrecnames ard aiddrcsses of thi ce refe-telces to:

[Dr. R. G. Barnes, ChairmanDepartment of Phisicslowsa State UniversityAmes, lowa 50010

I' ACULTY POSITIONIN lPUBLIC HEALTH EDUCATION

Seck D). P.H., Ph.D., Ed.D.. or CqUiValent forAsssistnt li-ot'essoi opetling in SCIhool of PtiblicFl.ilitli. M.P.H. desir.able. Prefer researclh anditcithiti cxecriceice in edLucational priohlems atmlprocedUres related to the delivery of hlealthi care

ircd iri comuiItility menital Ihealth. Salars negoti-able. Tlii' Schoolistott itted't to a stroiz. affirmita-tiii (a {ttii)ti polic l t'otteti atid ttitiorits' art

stpec iall/ itrgid to uiltilt SuLbmit ctirrictiltim vitac,puLIblications,. nd lettc's of icefe tciice bs JatlL-ars 1975 to Dr. Carol N. D'Oinofrio. Earl WarrenHall, Uisiiersity of California, Berkele. 9472(0.

||||||||| POSITIONS OPEN ||||||||||||||||||

FACULTY POSITION

The Departmenit of Poultry Scielnce inivites ap-plications for ai position at the Assistant orAssociate Professor level in the field of poultrymanagement, involving bothl research and teachingrcsponlsibilities. Experience or traininig in thearea of poul.try niutrttion is desirable. The positionwill he available I Jainuary 1975 or shortly there-after. Completed applicatiotts arc destred as sootras possible, but w"ill be accepted for considera-tionl until 30 November or until the position isfilltled, hichesver is later Oregot1 Statc' Utir ersiltix ant Afjirinati e Actiott LEmployer anid eitcotir-ages appliotiotis frovle quialifie(d women and(litnttoritit's. Foi- infot mation abouLt the depat-t-tilent and the posttion requiremiients, contact:Dr. G. H. Arscott, Head, Department of PoultryScience, Oregon State University, Corvallis, Ore.97331.

ANTICIPA LED FACULTY POSITIONSIUNIX'ERSITY OF SOUTH FLORIDA

MEDICAL CENTER

D)t1tio1g this acadcmlic year (1974-75) it is anitici-pated that there s ill he vacanlcies oni the full-timcf'act.Ity witthin thle College of Medicine in thefotlos tlog departments:

Department ChiefAnattomy 11. N. Sclhnitzlcitn, Ph.D)Biochemistry Joseph (G. Cory, Ph.D.Comprehensive Medicinie O'Ncill Barrett. M.D.Deani's Office l)onn L. Smitlt, M.D.Family Medicine D)oni L. Smiiith, M.D.Internal Medicine Roy H. Behnlke, M.D.Medical Microbiologs Chatrles W. Fisthel, Ph.).Obh Clyn James M. Ingramn, M.D.Pathology tHcrschel Sidransky, M.D.P'cdizitrics Lcwis A. Barniess, M.D.Psychiatry les is A. Barticss, M.D..

Chairman, SearchCommittee

Radiology Arthur Graham, M.D.StUrgeiy loger 1. Shcrmlan. M.D.

Applications. Wh ich shouLld include a brief suimil-miai v of traiiiing, specialty qualifications, teaching.aind i-csearch activities, should be addressed to theDepartmental Chief at the University of SouthFlorida Medical Ceniter, Tampa, Florida 33620. TlieUn,ivrsitot tf Soi/tli F lorida is an affirmatia e ac-t(ionI emiloyer'.

NIEDICAI,.NIICROII IOLOGIST/IMMNIU1'NOCHENI1ST

lirniec(lihlrte positiotr as il.ibIc for a Ph.D. v ith airtirimuimn of ye.ar of postdoctoril experience.A/ll p.rticipaute in the stiUdies of iriter.ctionrs of

errs irortrnernatl str-sses and irifectioLIsdisease. Nlid-vs Cist-bhs research and deselopment itlganizatiurin.I'leise scid( r-ssuirne arid salaty rcquirerilerits to:

Rox 505, SCIENCE

563

DEANUNIVERSITY OF PITTSBURGH

SCHOOL OF MEDICINEApplications arc invited ft-om qLialified

individuLals tor- the position of Dean of theSclhool of Medicine at the University cifPittsburgh. Applications mLust include acomplete ciliirictilum vitae and bibliography.We are air equial opporutitit emtploj er an(dapplitationis fitoupt wometn atid mutemitbers ofititioritr grouips are etncouraged. Please sendaipplications, Ctit-ricLtILm vitae, and bibliog-raphy to Chairman, Search Committee, Uni-versity of Pittsburgh School of Medicine,1291 Scaife Hall, 3550 Terrace Street, Pitts-burgh, Pennsylsania 15261.

IMMUNOLOGIST - Ph.D.Merck Sharp & Dohme Research Labo-ratories is presently offering an excep-tional career opportunity for a Ph.D.Immunologist to work in our Depart-ment of Virus and Cell Biology.

Challenging responsibilities involvebasic and applied research in viral andmicrobial diseases, as well as auto-immune disease.

Selected candidate must bring to thisposition: Creativity, 3 to 5 years' post-doctoral experience, a good workingknowledge of contemporary immunol-ogy, especially cell-mediated immunity,and the ability to work in a team effort.

Excellent starting salary and benefitsaccompany this position at our attrac-tive subuLrban location (25 miles north-west of Philadelphia).Interested candidates should send com-plete resumeof education and experi-ence to JACQUES P. KUENY

Merck Sharp & DohmeResearch LaboratoriesDIVISION OF MERCK & CO., INC.

West Point, Pa. 19486I qiual OipportrnitY EmttploY er

ligiii I POSITIONS OPEN |iii 1111111 POSITIONS. OPEN | IEIBIIIEII POSITIONS OPEN IjIIIfl*j*|||||jlHEAD

DEPARTMENT OF BIOLOGICAL SCIENCESUNIVERSITY OF CINCINNATI

Applications and nominations are invited forthe position of Head of the Department of Bio-logical Sciences. The department is one of thelargest in this university having 23 faculty withmajor interests in Cell Biology, Ecology, Evolutionand Systematics, Genetics, and Physiology. An-other program in Developmental Biology is of-fered jointly with faculty from the College ofMedicine. Approximately 100 undergraduate ma-jors are graduated per year and 50 to 60 gradu-ate students are enrolled in the department. Thefacilities housing the department were dedicatedin 1970.

Qualifications: A distinguished record of achieve-ment in research and teaching, and evidence ofadministrative leadership.

Please respond to: Professor Richard A. Day,Search Chairman, Department of Chemistry, Uni-versity of Cincinnati, Cincinnati, Ohio 45221. Anequial opportutnity, affirmative action employer.

MENTAL RETARDATION EPIDEMIOLOGIST

The Child Development and Mental RetardationCenter (CDMRC), in conjunction with the Depart-ment of Epidemiology and International Health,University of Washington, is seeking a researchepidemiologist. Qualifications include an appropri-ate doctorate with training and experience in epi-demiology, preferably in the field of mental re-tardation and related problems. CDMRC is alarge interdisciplinary research and training cen-ter affiliated with 8 colleges and 29 departmentsand divisions within the University, and has co-operative arrangements with several local com-munity and government agencies. This providesunique opportunities for a wide range of collabo-rative interdisciplinary studies. In conjunction withother research personnel, the epidemiologist willdevelop and implement studies in the preventionand care of mental retardation and related prob-lems. Minor teaching duties will be expected.Members of minority groups and women are en-couraged to apply. Send resume to: Gerald D.LaVeck, M.D., Chairman, Search Committee,Clinical Training Unit, Child Development andMental Retardation Center, University of Wash-ington WJ-10, Seattle, Washington 98195.

UNIVERSITY OFPAPUA NEW GUINEA

(Port Moresby)

Applications are invited for the posts of(a) SENIOR LECTURER/LECTURER INMICROBIOLOGY and (b) SENIOR LEC-TURER/LECTURER IN PATHOLOGY. Can-didates should hold an M.D. Applicantsfor the Microbiology lectureship shouldhave at least three years of training inMicrobiology and some teaching experi-ence. A Senior Lecturer must have post-graduate qualifications with at least fiveyears of work in Microbiology. Specialknowledge of Parasitology will be an ad-vantage. Applicants for the Pathologylectureship should have postgraduatequalifications and may have special in-terests and experience in Parasitology,Morbid Anatomy and Histopathology. Ap-pointees will work under the direction ofthe Professor of Pathology, who is thePathologist-in-Charge at the Port MoresbyGeneral Hospital.Salary scales: Senior Lecturer $10,441-$12,089 p.a. Lecturer $7,570-$10,205 p.a.(E1 sterling = $1.55). Housing, studyleave, secondary education allowance,superannuation and leave fares are pro-vided. In some instances it may bepossible to make appointments on sec-ondment. Further information about theUniversity and the conditions of appoint-ment can be obtained from the Secretary.Further information about courses andthe Department may be obtained fromthe Departmental Chairman. Applicationsshould be in duplicate and include par-ticulars of age, nationality, marital status,academic record, qualifications and ex-perience, names and addresses of threereferees, a recent small photograph andindication of estimated starting date.Positions are available from January1975, and appointees would be expectedto take up their appointments no laterthan mid-February 1975. Applicationsshould be sent to K. R. Long, Secretary,P.O. Box 4820, University, Papua, NewGuinea, as soon as possible.

564

HUMAN GENETICIST

The Department of Biological Sciences seeks aperson with research competence and a programin the areas of mammalian cytogenetics and so-matic cell hybridization. The person selected willwork with other staff members in developing thearea of human genetics. The responsibilities willinclude teaching and training undergraduate andgraduate students. The position will be offered atthe Assistant or Associate Professor level depend-ing upon the applicant's qualifications. Send cur-riculum vitae, three letters of recommendation,and pertinent reprints to A. M. Clark, Depart-ment of Biological Sciences, University of Dela-ware, Newark, Delaware 19711. An Equal Oppor-tunitY/Affirmative Action Employer.

IMMUNOLOGY AND MICROBIOLOGY DE-PARTMENT of Wayne State University School ofMedicine invites applications for faculty positionsfrom individuals who have done independent re-search. Rank and salary are open. Candidateswith experience in the fields of immunology, virol-ogy, and medical microbiology will be considered.Curriculum vitae and names of three referencesmay be sent to the Personnel and AppointmentsCommittee, Department of Immunology andMicrobiology, Wayne State University School ofMedicine, Detroit, Michigan 48201. An equal op-portinities enmployer.

IMMUNOLOGISTA Ph.D. and/or M.D. with postdoctoral trainingis sought for a university budgeted faculty posi-tion at the assistant professorship level to estab-lish a research program in cellular or tumor im-munology and to help in the instruction of medi-cal and graduate students. The salary and benefitsare competitive with the national scale. Applicantsshould submit curriculum vitae and three lettersof recommendation to Dr. Edward Bresnick,Chairman, Department of Cell and Molecular Bi-ology, Medical College of Georgia, Augusta, Ga.30902.

DEPARTMENT OFP MICROBIOLOGYUNIVERSITY OF CONNECTICUT HEALTHCENTER

Applications are invited for two faculty appoint-ments to be made during the 1975-76 academicyear, one at the level of associate professor orprofessor and the other at the assistant professorlevel. Preference will be given to individuals withresearch training and experience in animal virol-ogy. Applications from women and nmembers ofminority groups are welcomed. Inquiries shouldinclude a complete curriculum vitae and the namesof three persons from whom recommendationscan be solicited, and should be sent to LawrenceRothfield, Chairman, Department of Microbiology,University of Connecticut School of Medicine,Farmington, Connecticut 06032.

An Equal Opportunity Employer

IOWA STATE UNIVERSITYAND AMES LABORATORY

ATOMIC ENERGY COMMISSION

Applications are invited from qualified NUCLE-AR THEORISTS with research interest and ex-perience in shell model calculations for both lightand medium heavy nuclei as well as in the appli-cation of group theoretic techniques to nuclearproblems. Most importantly, an applicant must becapable of, and interested in, interacting stronglyand regularly with the experimental nuclear spec-troscopy group.

It is expected that the appointment will be atthe assistant professor level with salary com-mensurate with experience and will involve normaldepartmental teaching duties.

Interested persons should submit a resume, to-gether with copies of published research and thenames and addresses of three references, to: Dr.R. G. Barnes, Chairman, Department of Physics,Iowa State University, Ames, Iowa 50010.Iowa State University is an Equal Opportunity

Employer with an Affirmative Action Program.Applications from quialified black Americans,American Indians, Spanish surnamed Americans,and women are especially welcomned.

PLANT PATHOLOGIST. Needed is a groupleader to conduct testing of a large number ofcompounds as potential fungicides and bactericidesat the laboratory and greenhouse level. Personshotuld have Ph.D. or equivalent experience andan interest in crop protection. Should be able toplan and execute an innovative research programfor improved methodology on both foliage andsoil diseases. Develops data and recommendationsfor program of separate field research group.Persons interested should send resume to R K.Thompson, Chevron Chemical Co., 940 HensleyStreet, Richmond, California 94804.

MOLECULAR BIOLOGIST

The National Institute of Environmental HealthSciences invites applications for a Molecular Biol-ogist position under the Staff Fellow or VisitingAssociate Program. As a member of a multi-disciplinary group studying developmental toxi-cology, the selected applicant will plan and con-duct independent and collaborative research in thearea of the molecular basis for chemically inducedalterations in developing systems.

A doctorate in Biochemistry or a relateddiscipline is required.

The appointment will initially be for 1 or 2years and may be extended. Salary will rangefrom $15,000 to $20,000 per annum depending onqualifications.

Letters of application with curriculum vitae.bibliography, and name and address of two ref-erences should be addressed to:

Mr. Charles E. WalkerNational Institute of

Environmental Health SciencesP.O. Box 12233

Research Triangle Park, North Carolina 27709

Letters must be received by 10 December 1974to be considered.

Ani Equal Opportunity Emnployer

UNIVERSITY OF PENNSYLVANIASCHOOL OF MEDICINE

DEPARTMENT OF PATHOLOGYIn accordance with University principles of fair

practice employment, applications are invited forone or more positions of Assistant Professor withmajor research interest in Immunopathology. Ap-plicants preferred who are certified or eligiblefor certification in Pathology and must be inter-ested in having hospital service responsibilities.

Applications, including curriculum vitae andthree references, should be sent to Dr. David T.Rowlands, Jr., Chairman, Department of Pathol-ogy, University of Pennsylvania, School of Medi-cine/G3, Philadelphia, Pa. 19174.

PHARMACOLOGY-TOXICOLOGYApplications invited for Assistant Professor posi-tion available July 1975. Applicants to holdPh.D. or M.D. with teaching interest and po-tential to develop strong research program. Sendresume to: Dr. A. Trevor, Department of Phar-macology, School of Medicine, University ofCaHifornia, San Francisco, Calif. 94143. An af-firmatim e action-equial opportunity employer.

POSITIONS IN PHYSIOLOGY. Applications aresought from individuals seeking teaching/researchpositions in Physiology. Investigators with back-ground in endocrine, gastrointestinal, and pulmo-nary physiology are especially encouraged, how-ever all applicants will be carefully considered.Please submit applications and credentials to;Allen R. Freeman, Ph.D., Professor and Chair-man, Temple University School of Medicine, De.partment of Physiology, 3420 North Broad Street,Philadelphia, Pa. 19140. We are an equal oppor-tunit', affirmative actiont employer.

PHYSIOLOGY DEPARTMENT

Applications are invited for faculty positions agAssistant Professor level and research position'at the Associate and Assistant levels. Salarietbased on qualifications and experience. Sencr6sum6 to Chairman, Physiology DepartmentWayne State University School of Medicine, 541East Canfield, Detroit, Michigan 48201. An equaopportunitY/affirinative action eniployer.

POSTDOCTORAL POSITION is available immediately for either an experimental physicist,;physical chemist, or an optical engineer. Must b,interested in hybrid work with correlation opticasystems as applied to biological specimens. Salar,$9600 for 1 year. U.S. residents only. Send r6sumito Head, Department of Electronics and Instrumentation, University of Arkansas Graduate Institute of Technology, P.O. Box 3017, Little RoclkArkansas 72203. An equial opportunityl/afirmativlac-tion em1ployer.

POSTDOCTORAL POSITION

Applications are invited for a postdoctoral postion in neurochemical research with particulaempioasis on the lipid and protein metabolism idrug-induced brain tumors. Please send curriculurvitae to Dr. F. B. Jungalwala, Biochemistry Dopartment, Eunice Kennedy Shriver Center, 2(Trapelo Road, Waltham, Mass. 02154.

Ai equal opportunity employer M/FSCIENCE, VOL. 18

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UNIVERSITY OFNEW SOUTH WALES

SCHOOL OF PHYSIOLOGYAND PHARMACOLOGY

Because of increased teaching com-mitments resulting from the changeto a new medical curriculum, aniumber of temporary appointmentswill be made in the School of Physi-ology and Pharmacology at the be-ginning of 1975 in the categoriesof LECTURER, SENIOR TUTOR, TU-TOR.Applications are invited from suit-ably qualified graduates and grad-uands in medicine or science. TheSchool is responsible for under-graduate courses in physiology andpharmacology for medical students,teaches physiology to honours levelto science students, and has an ac-tive graduate programme.These appointments will be for oneyear. However there are prospectsof vacancies occurring late in 1975for which these temporary ap-pointees will be eligible to apply.Salaries: $A9,002 range $A12,352per annum (lecturer); between $A7,-545 and $A9,002 per annum (sen-ior tutor); between $A5,985 and$A7,285 per annum (tutor). Com-mencing salary according to quali-fications and experience.Further information may be obtainedfrom the Secretary-General, Asso-ciation of Commonwealth Universi-ties (Appts). 36 Gordon Square,London WC1H OPF.Forward applications as soon aspossi'ble.

The Ortec 5C1 is the most advancedphoton-counting system money canbuy. And the most practical.

It has a dual-channel pulse heightanalyzer, for example, that providesfirst-order pile-up correction at highcounting rates and window-mode dis-crimination of high and low pulses.At counting rates where conventionalsystems "lose" 50% of the counts,the 5C1 linearizes to within 5%.

Another unique advantage is spec-trum display. Connect the unit toany CRT, and you can visually opti-

CORTEC Circle No. 109 oa

mize high voltage, amplifier gain,and discriminator levels. Then dis-able the light source and check forrf pickup or spurious signals. Youcan't do this with any other photon-counting system.

For full technical data, contact yournearby Ortec representative or OrtecIncorporated, 110 Midland Road, OakRidge, Tenn. 37830. (615) 482-4411.

OT--EC

n Readers' Service Card

NOViMBER 1974

MANAGERSMicrobiology & Immunology

R&DPh.D.

Major division of Becto.-i-Dickinson & Company (For-tune 500 listed NYSE) seeks an apgressive Ph.D.(Microbiology or Immunology) with 5 years plusexperience in an industrial area to direct and person-ally participate in the R & D of new products, im-provement of existing products and productionmethods. Will also be liaison between researchgroup and management relating to developmentpro-ram progression. Excellent salary and companypaid benefit plan. Please send curriculum vitaeincludiig salary history to:

Ralph Cole

i BIOQUEST|Division of

- Becton-Dickinson Co.

P. 0. Box 243Cockeysville, Maryland 21030A-i ELiial Opportunitmyv Employ'er MlF

rI565

ORTEC MAKES YOUR PHOTONS COUNT!In physics ... optics . . . laser systems ... ion experiments ...

astronomy . . . molecular studies . . . luminescence . . .fluorescence ... Raman ... mass spectroscopy .. . wherever

critically accurate light measurement is required.

5979

DIRECTORDONNER LABORATORY

LAWRENCE BERKELEY LABORATORYUNIVERSITY OF CALIFORNIA

Applications and nominations are invited for Directorof the Division of Biology and Medicine (the DonnerLaboratory) of the Lawrence Berkeley Laboratory.The activities of the Donner Laboratory are supportedby the AEC and other federal agencies. The researchprogram of this organization ranges from problems offundamental biology to clinical applications of radio-therapy and nuclear medicine, and there is close re-lationship to the academic program of Medical Physicsof the Berkeley campus. A candidate should have arecord of distinguished achievement in biological ormedical research and the ability to give scientific andadministrative leadership to a large and diverselaboratory.Applications or nominations sbould be submitted byjanuary 8, 1975 to:

Dean David H. TempletonChairman of the Search Committee

College of ChemistryUniversity of CaliforniaBerkeley, CA 94720

Aui Equlal Opportunity/Afjfirnmative A ction Employer

I

|||||||||||||||||POSITIONS OPEN|||||||||||||||||PATHOLOGIST NEEDED IN ALASKA. Experi-mental progi-am in decentralized medical educa-tion entering its fourth year needs experiencedlteacher part-time for the spring 1975 semester(Board certified pathologist preferred). Duties in-clude teaching a three-Lnit pathology course andsome lectut ing in related courses. Opportunitiesfor part-time employment exist in local medicalcommuLnity whete a pathologist is urgently needed.Positiorl reqLlires a versatile, innovative person withgenuine commitment to teaching. Salary is com-menisurate with experience. Applicants should sup-ply curriculum vitae and references by I December1974 to Dr. Richard B. Lyons, WAMI Program,ULniversity of Alaska, Fairbanks, Alaska 99701.

-4n Equal Opporuutity Affrmnatii e Actioomipiovyer

TEACHING POSITION AVAILABLESEPTEMBER 1975

PHYSIOLOGIST. Assistant Professor, Ph.D.UndergraduLate and graduate teaching in vertebratephy siology and zoology; preference for researchat cell-orgati level with background in specialsensory organs or reticulo-endothelial system;postdoctoral experience desirable; direct graduatestudents and participate actively in research.Write Dr. A. W. Pritchard, Chairman, SearchCommittee, Department of Zoology, Oregon StateUniversity, Corvallis, Oregon 97331. OSU is aiaffirniaoit e actiort emiployer.

POPULATION GENETICIST

Assistat Ptl'rofessor/Associate Professor. Qualifica-tions iticlude demonstrated teaching ability, anlactive i-esearch program, and the Ph.D. Teachingduties includte utidergraduate couLrscs in heredityanid genetics and graduLate courses in her or hisspecialty. Wotmcn and minority candidates areLurged to alpply. Send cturricuLlum vtiici reprints, afuill dcscription of tesearcli inteiists, and fourreferc :ces to: Dr. Victor H. Hutchison, Chairman,Department of Zoology, University of Oklahoma,730 *an Vlcet Oval, Norman, Oklahoma 73069.

Ani Eqlual Opportun,ity Emnplo.yer

POST1)OCTORAL POSITION

Twso-yea.r positioni immncdiatcly availaible for per-soni with training irn Parasitology swith emphasisotn coccidia. St-ong backgrouind in C'ell Biologyand election miiicroscopy is esscntial; training inirnvet tebrate biology desirable. Send cuLrriculumvitae and three letters of reference to: Dr. N. N.Youssef, Department of Biology UMC 53, UtahState University, Logan, Utah 84322. An EquialOprportitnitr Emplovrer.

PSYCHOLOGY FACULTY POSITIONS

Dcpartnicrlt of Psychology. Utiiversity of BritishCAolumbhia. Six facuIlty positionis available for 1975-76: D)evelopmental (professor and assistant pro-fcssoi), Social (professor), Clinical/Community(.issistant professor), and two positions for out-sta.nding candidates at the assistant and associatcprofessor levels, preferably in biopsychology. clini-cal/cornmtnity, personality, quLantitative, or so-cial. Evideiice of demonstrated research compe-tenice rcqulired for all areas; experience in field asvcIt1l as laboratory research in appropriate areasis desirable. The Untii ersitv of British Coltiotbiaolfers e(qlal opportun1itv for employmnentt to qltali-fied muale and jeynale catndidate.u. Send curriculumvitae and narmes of three references to: Chairman,Faculty Search Committee, Department of Psy-chology, University of British Columbia, Van-couser, B.C.. V6T 1W5, Canada.

RESEARCH ASSOCIATESHIPIN MOIOLECULAR STRUCTURE

Ph.D. in C hcmistry, Biochenmistry, Plhysics inter-csted in dlcternmining the molecular geometry ofitticleic acids of special composition or seqLence.or the struLctuLres of cotinective tissue and bacterialpolysaccharicles by x-ray difTi-action analyses offibcts aitd cotmiptuter moencl buLilding. Setd de-titiled cUr ricUlulm v itae corntainiing names of tworeterecs to Professor Struther Arnott. Departmentof Biological Sciences. Purdue University, Westl.afayette, Indiana 47907.

SYSTEM PHYSIOLOGIST

Assistlani or Associate Professor swith a strongb,ickgroundle in humtlan cardlios ascul!ar physiology.Fa.miliarity wsith renal aind/or respii-atory phy siol-ogy will be helpfil. Candidate is expected to de-velop an!d teaclh interdisciplinary undergraduateanid gradUate couirses atid to develop an inde-pendent research program. Opportutilities for col-laboration. Send cUrricUlum vitae, three lcttersof recommendation, and pcrtinent reprinits to M.K. Jain, Division of Health Science, Universityof Delaware, Newark, Del. 19711. 1l) is antequal

566

T'WO FACULTY POSITIONSThe Biology Department, University of Colo-

rado at Colorado Springs, invites applicationsfor two facuLlty positions at the Assistant orAssociate Professor level for fall 1975 to comple-ment an environmentally oriented program. Oneopenitig is for a Vertebrate Physiologist Anat-omist, and the applicant shotuld have the abilityto teach quLality undergraduate courses in twoor more of the following areas: human physiol-ogy, comparative physiology, embryology, com-parative anatomy. The second opening is for anEvolutionary Ecologist, and the applicant shouldhave the ability to teach quality undergraduatecouLrses in two or more of the following areas:CvoluLtion, genetics, biometry. Applicants may beexpected to participate in the introductory biol-ogy program anid are expected to develop anactivc rcsearch program in their area of interest.Prior teaching and research experience prcferred.Send cuLrricuLlum vitae, a brief description of

experience and current interests in teaching andresearch, and the names of at least three persotisWihO COuld Suipply references to Dr. J. H. Eley,Biology Department, University of Colorado,Colorado Springs, Colorado 80907. Deadline forreceipt of applications for initial screening is 4weeks fronm date of appearance of this notice.The Univiersit'v of Colorado is an Equal Op-

porttimit, Affirtnati e Action EmploYer.

UNIVERSITY OF TEXASMIARINE SCIENCE INSTITUTE

The University of Texas Marine Science In-stitlte at Port Aransas is seeking applicants foran appointmnent, preferably at the Assistant Pro-fessor level, from marine biologists capable oficaching courses in invertebrate zoology of ma-rinc org.tnisms and of doing research in the areaof phiysiological ecology. Applicants must havea strong research interest and a commitment togradLtate traiining. Send curricultim vitae and abi-ief statenment of research interests to the Di-rector, The University of Texas Marine ScienceInstitute, Port Aransas, Texas 78373. AffirnativueActionii(/Il Opport,itit, Emiployer.

POSTDOCTORAL POSITION available immedi-ately. NatLiral product chemistry. Isolation, identi-fication, synthesis of aphid alarm pheromones.Send r;urnme and references to

Professor W. S. BowersNews York State Agricultural Experiment Station

Cornell UniversityGeneva, N.Y. 14456

Att Affir,natii e Action Emiployer

POSTDOCTORAL POSITION, BIOCHEMIST

Av.tilable tiow; research in lung proteases and in-hibitors, $10,000. Euiial opportunity-affiratiaieactioti emtploYer. Send resume and three refcrencesto

Dr. G. KalnitskyBiochemistry Department

University of Iowalowa City, Iowa 52242

UNIVERSITY OF CALIFORNIA, SAN DIEGO/P'OSTDOCTORAL/RESEARCH POSITION/BIO-CHEMIST/BIOLOGIST/Ph.D. Opening availableimmincdiately. Basic mechanism studies of the ac-tion of cancer chemotherapeutic agents on cellcycle events. Applicationi of chromatographic andradioaultographic techniqties with ctiltured cellsgrown in synchrony. Two- to three-year appoint-mcnt. S.tlary comimensuLrate with qualifications andexperience. Send r6surm6 and three letters of rec-ommendation to Morris Friedkin, Department ofBiology, 4080 Basic Science Building, M-001, Uni-versity of California San Diego, La Jolla, Cali-fornia 92037. The Uttii'ersity of Californtia is an2eutital opportitutity ,affirniati e actiotn eniploryer.

0111 01111 01111 0110 GRADUATESTUDYGRADUATE STUDY IN

PH YSIOLOGY AND BIOPHYSICS AlTHE UNIV'ERSITY OF MIAMI

SCHOOI, OF MEDICINE

Thc Departmnent of Physiology and Biophysicspi ovides graduLate training leaditig to the Ph.D.dcgree. Tratining is offered in cell physiology,neurohiology. membrane biophysics, cellultr aging,arid developmental biology. Applicatnts shouldhave a bachelor's degree in physical or biologicalscience or engineering. Fellowships and assistant-ships arc offered to sLiccessful applicanits. For de-tails write to: Admissions Committee, Departmentof Physiology and Biophysics, University of MiamiSchool of Medicinie, P.O. Box 520875, Miami,Florida 33152.

POSITIONS OPEN

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!111111111111111ANNOUNCEMENT IIIIIIDIIIIIDSYNTHESIS OF N-NITROSO COMPOUNDS

As one means of encotiraging researcih with chem-ical cai-cinogens whose isotopically labeled formsare nol now commercially available, the Carcino-gctesis Program of the National Cancer Instituiteis conisidering commissioning the syntheses of alinited ntimbem- of radioactive and rnass-labeledN-nitroso compotinds. The identities and quantitiesof niaterials to be prepared and distributed throLIghthis priogram will be determined largely on theb.tsis of ueqLiests u-eceived in this office. There-forc, those wishing to receive matet-ials tinder thispiogram are uirged to communicate their spccificneeds (names and quantities of compotinds, iden-tity and position(s) of label, and specific activityor isotopic purity to: Dr. Marcia Litwack, Man-ager, Information and Resources Segment, Car-cinogenesis, DCCP, NCI, Landow Building, RoomA-306, 7910 Woodmont Avenue, Bethesda, Mary-land 20014, by 15 December 1974. Additional iin-for-mation from reqLiestors may be unecessars iat alater date prior to making the final decisiolis otipreparation and distribtition.

111118|8||11|1|10"|||||o| FELLOWSHIPS |||||||||||||0|||DOCTOR OF ARTS IN BIOLOGY

Applications for predoctoral fellowshiips arebcimig accepted now from qualified stiidents dedi-cated to college-level teaching atid interested itnsttidyinig for the D.A. degree in Biology. Appli-carits must hold an MS. degree in Biology or itsequlivalent prior to the fall 1975 term. Fellowshipsc.trry a stipend of $28110 per academic s'ear pluituLition waiver. For details of this new programand application materials write to: Biology Chair-man, Box 8007, Idaho State University, Pocatello,Idaho 83209.

POSTDOCTORAL FELLOWSHIP IN HUMANBIOCHEMICAL GENETICS

Fellowships are available for pcstdoctoral ti-aia-ing in a Humman Biochemical Genetics grouip withspecial interest in the study and diagnosis of hut-man genctic disorders. Training will include stud-ies in cytogenetics, cell cLilture systems for bio-chemical studies of diseases of amino acid, ptirine.and lipid metabolism, cystic fibrosis, genetic screen-ing, and prenatal diagnosis and participation inclinical genetics programs.

Interested persons should seid iriqtii ieis andcutrricUluLim vit.C 10:

I)r. J. E. SeegmillerDepartment of MedicineSchool of MedicineUniversity of California, San DiegoLa Jolla, California 92037Anum Equtal OpportuouittyAffirmnatiie Actiouu

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Use the 31 with other data tools.We have three new interfaces (likethe 154 RS-232-C shown) thatwork with most instrumentationand I/O devices on the market.Then there's our Tektronix periph-erals you can interface with.Like our digital plotter, graphicterminals. And software packagesyou add as you need.But there's still more to the storyon the 31. More interfaces, moreperipherals, more power. Andinformation on OEM and quantitydiscounts. Get it by calling yourlocal Tektronix sales engineer.Or write us.

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f~ iS

TES -'4 ' -

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CATALOG* COMPOUND1433-07 Adenosine 5'-

Triphosphate,Tetralithium f8-3H](ethano!. water 1 1)

1433-09 Adenosine 5'-Triphosphate,Tetrasodium (8 3HI

A (ethanol:water 1:1)3122-13

3122-15

1433-38

1433-39

2433-06

2433-07

2433-33

2433-34

2433-58

2433-56

L-Alanine [14G1(0.01 N HCI sol.) (U)L-Arginine '4Cl(0.01 N HCI sol.) (U)Cytidine 5'-Triphosphate,Tetralithium 15 3HICytidine 5'-Triphosphate,Tetrasodium [5 3H]Deoxyadenosine 5'-Tri phosphate,Tetralithium [8-3H]Deoxyadenosine 5'-Triphosphate,Tetrasodium [8 3HiDeoxycytidine 5'-Tri phosphate,TetralithiUm [5-3HIDeoxycytidine 5'-TriphosphateTetrasodium f5-3H]Deoxyguanosine 5'-Triphosphate,Tetralithium (8-3H!Deoxyguanosine 5'-Triphosphate,Tetrasodium L8-3Hi

25.000

12,000-25,000

135-165

270-320

5,000-15,000

5,000^15,000

10,000

I 10,000

15,000-30,000

15,000-30,000

->10,000

>10,000

3122-31 Glycine [4C] 95-100(0.01 N HCI sol.) (U)

1433-59 1Guanosine 54- 5 000Triphosphate, 15"000__________ -.-Tetralithium [8-3H]

1433-60 Guanosine 5'- 5,000-Triphosphate, 15,000

..__-_ -_Tetrasodium [8-3H __3122-41 L-Leucine t(4Uc

(0.01 N HCI Sol.) tU)270-320

3122-45 L-Lysine ['4C] 270-300(0.01 N HCG sol.) (U)

3122-49 L-Phenylalanine [L4C1 405-495(0.01 N H!C sol.) (U)

3122-51 L-Proline!14C3 225-265(0.01 N HCI sol.) (U)-

3122-53 L-Serine [14C1 135-165(0.01 N HC! sol.) (U)

2533-83 Thymidine 1-methyl-3H]tr,c !:- zn N

360\kT. a_q. so'Ji/ -

PRICE4i$40./1 mc165./5 mc

40./l mc165./5 mc

90./500 uc 4170./i mc75./250uc

140./500uc40/1 mc

165./5 mc A.

40./l mc165./5mc

40./i mrc165./5 mc40./I mc1mc165./5 mc j

40./1 Mc165/5 mc--.4

40./lmc165 /5 mc

40C/1 mc165/5 mc

40.J/ mc1651/5 mc

170./500 uc110./ ric

420/1 mc

165./S mc t½

170/500 uc320./i mc -

170.1500 uc

320./1 mc

360./i mc260./2 umc

3240 /1 mc C50

170./200 ucG320.il mc .160.150 uc t

3260./2l mc

2533-84 Thy midine tmethyi-3H] 1900 60./5 mc(st aq. sol.) 260./25 mc

2533-85 Thymidine [methyl-3H1 3000 60./5 mc(st. ag. sol.) - 260./25 mc

2533 86 Thymidine !methyl-3H)(st. aq. so!)

6000 60./5 mc260.t25 mc

2533-87 Thymidine (methyl-3H] >10,000 60.15 mc(st. ag. sol.) 260.125 mc

32533-88 Thymidine [methyt- HI 40000- 60./5 mrc(St. aq. sol.) 60,000 260./25 mc

2433-94 Thymidine 5'- >40,000 40.11 mcTriphosphate, 150./5 mc- Tetralithium [methyl-3HI . . _

-2433-95 Thymidine 5'- >40,000 40.11 mcTriphosphate, 150./5 mc 7.Tetrasodium (methyl-3H1

1533-94 Uridine [5-3H] 2000 50./5 mc(st. aq. sol.) 220./25 mc

1533-95 Uridine [5-3H 4000 50/5rcm(st. aq. sol.) 220/25 mc

1533-96 Uridine f5-3H1 8000 50./S mc(st. aa. sol.) 220./25 mc

1533-97 Uridine [5 3HI >20,000 50./5 mc(st. aq. sol.) 220./25 mc

1533-92 Uridine!5,6-43,H 40,000- 50.15 mc(St. aq. sol.) 60,000 220./25 mc

1433-89

3122-61

Uridine 5'-Trtphosphate,Tetralithium !5 3HiUridine 5'-

10,000-25,000

10,000-25,000

225-265

40./i mc165 /5 mc40./1 mc

165./5 mc

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