8-10. Marine Systems, conf., AmericanInst. of Aeronautics and Astronautics/U.S.Navy, San Diego, Calif. (AIAA, 1290Sixth Ave., New York, N.Y. 10019)

8-10. Society of Toxicology, annual, Wil-liamsburg, Va. (C. S. Weil, Mellon Inst.,4400 Fifth Ave., Pittsburgh, Pa. 15213)

8-11. American College of Surgeons,clinical congr., Seattle, Washington. (S. P.Harbison, 55 E. Erie St., Chicago, Ill.)

8-12. American Soc. of Civil Engineers,Mobile, Ala. (W. H. Wisely, ASCE, 345E. 47 St., New York, N.Y. 10017)

8-12. Personnel Dosimetry for Acciden-tal High Level Exposure to External andInternal Radiation, symp.. Vienna, Aus-tria. (J. H. Kane, International Confer-ences Branch, Div. of Special Projects,U.S. Atomic Energy Commission, Wash-ington, D.C. 20545)

9-10. Arms Control, first West Coastconf., Los Angeles, Calif. (R. D. DeLauer,TRW Space Technology Laboratories, Re-dondo Beach. Calif.)

9-11. Wildlife Management Inst., LasVegas, Nev. (C. R. Gutermuth, 709 WireBldg., Washington, D.C.)

10-12. Particle Accelerator, conf., Wash-ington, D.C. (R. S. Livingston, Oak RidgeNatl. Laboratory, P.O. Box X, Oak Ridge,Tenn.)

13. Experimental Basis for the CurrentManagement of Portal Hypertension, Phil-adelphia, Pa. (B. Sigel, Woman's MedicalCollege of Pennsylvania, 3300 Henry Ave.,Philadelphia 19129)

13-18. Proctology, 17th annual teach-ing seminar, New Orleans. La. (A. J.Cantor, 147-41 Stanford Ave., Flushing,L.I., N.Y. 11355)

14-16. Society for the Study of Develop-ment and Growth, southeastern regional,Univ. of Georgia, Athens. (D. T. Lindsay,Dept. of Zoology, Univ. of Georgia,Athens 30601)

15-17. Plant Protection, 2nd intern.conf., Naples, Italy. (Intern. Anti-ParasiticCentre, Via Barberini, 86, Rome, Italy)

15-17. Solar Energy Soc., intern. symp.,Phoenix, Ariz. (SES, Arizona State Univ.,Tempe 8528 1)

17-19. Instrumentation in the Iron andSteel Industry, 15th natl. conf., Pittsburgh,Pa. (R. P. Trauterman, Allegheny-LudlumSteel Corp. Research Center, AlabamaAve., Backenridge, Pa.)

17-20. Medical Schools and TeachingHospitals: Curriculum, Programming andPlanning, New York Acad. of Sciences,New York, N.Y. (NYAS, 2 E. 63 St.,New York 10021)

17-20. American Orthopsychiatric As-soc., New York, N.Y. (E. Harrison, 477FDR Drive, New York, N.Y.)

18. American Vacuum Soc., midwesternsection, Houston, Tex. (J. H. Kimzey,Manned Spacecraft Center, 2101 Webster-Seabrook Rd., Houston 77058)

18-19. Zinc Metabolism, symp., Detroit,Mich. (A. S. Prasad, School of Medicine,Wayne State Univ., Detroit 48207)

18-20. Michigan Acad. of Science, Arts,and Letters, Univ. of Michigan, AnnArbor. (I. J. Cantrall, Museum of Zoology,Univ. of Michigan, Ann Arbor)

19-20. New York Microscopical Soc.,biennial symp., New York, N.Y. (T. G.Rochow, American Cyanamid Co., Room467A, Stamford, Conn. 06904)

Why a Coulachron Analyzer?

SPEED:

SAMPLES:

ANALYSES:

STANDARDS:

READOUT:

ACC U RACY:

30 seconds or less for each analysis

in microliters

more than 120 different ions and compounds

seldom required

digital, in microequivalents

for most analyses, better than 0.5%

a new instrument that provides fast, easy,

economical analysis ... automatically

CLINICAL UNIT RESEARCH PANEL

With a remarkable new instrument, the Coulachron, you can now titrate formore than 120 different ions and compounds-in seconds-without standardsolutions-using micro samples-automatically! The Coulachron generates itsown titrants, titrates to any selected potentiometric or amperometric end point,and reads out directly in microequivalents on a digital counter.

The basic Coulachron features the simplicity of plug-in programming forspecific analyses. In addition, the separate Research Panel substitutes for theprogram plugs to let you adjust each variable independently. With the Panel,you can develop your own analyses, modify standard procedures, follow titrationson indicating meters and measure electrode voltages.

You can do all kinds of oxidation-reduction, precipitation and complex-for.mation titrations with the Coulachron and Research Panel. Generate titrants oradd them from external burettes, as you choose. Most analyses take less than30 seconds, require only microliters of sample, need no calibration standards,and are accuracy-limited only by your sample pipetting technique.

Get the full facts on automating your analytical procedures with the Coul.achron. Write:

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106726 FEBRUARY 1965

MECHANISMS OF HARD TISSUE DESTRUCTIONEditor: Reidar F. Sognnaes, Dean, School ofDentistry, Center for the Health Sciences, Universityof California at Los Angeles

AAAS Symposium Volume No. 75, 1963. 776 pages, 430illus., one color plate, references, indexes. $13. AAAS mem-ber' cash orders, $11.

ContentsC. M. Yonge: Rock-Boring OrganismsT. F. Goreau and W. D. Hartman: Boring Sponges as

Controlling Factors in the Formation and Maintenanceof Coral Reefs

M. R. Carriker, D. B. Scott and G. N. Martin, Jr.: De-mineralization Mechanism of Boring Gastropods

R. F. Sognnaes: Dental Hard Tissue Destruction withSpecial Reference to Idiopathic Erosions

C. R. Barnicoat: Attrition of the Hypsodont ToothA. 1. Darling: Microstructural Changes in Early Dental

CariesE. Johansen: Ultrastructural and Chemical Observations

on Dental CariesJ. A. Gray and M. D. Francis: Physical Chemistry ofEnamel Dissolution

P. H. Keyes and H. V. Jordan: Factors Influencing theInitiation, Transmission, and Inhibition of DentalCaries

W. V. Mayer and S. Bernick: Effect of Hibernation onTooth Structure and Dental Caries

1. Reichborn-Kjennerud: Dento-Alveolar Resorption inPeriodontal Disorders

S. N. Bhaskar: Bone Remodeling during Dental Eruptionand Shedding

R. J. Goss: The Deciduous Nature of Deer AntlersF. C. McLean and R. E. Rowland: Internal Remodeling

of Compact BoneM. R. Urist, N. S. MacDonald, M. J. Moss and W. A.

Skoog: Rarefying Disease of the Skeleton: Observa-tions Dealing with Aged and Dead Bone in Patientswith Osteoporosis

J. Jowsey: Microradiography of Bone ResorptionR. W. Young: Histophysical Studies on Bone Cells and

Bone ResorptionN. M. Hancox and B. Boothroyd: Structure-Function Re-

lationships in the OsteoclastJ. T. Irving and C. S. Handelman: Bone Destruction by

Multinucleated Giant CellsL. F. Be'langer, J. Robichon, B. B. Migicovsky, D. H.Copp and J. Vincent: Resorption without Osteoclasts

G. Nichols, Jr.: In vitro Studies of Bone ResorptiveMechanisms

B. K. Forscher and D. V. Cohn: In vitro CarbohydrateMetabolism of Bone: Effect of Treatment of IntactAnimal with Parathyroid Extract

C. M. Dowse, M. W. Newman, K. Lane and W. F.Neuman: Metabolic Action of Parathyroid Hormoneon Rat Calvaria

P. Goldhaber: Some Chemical Factors Influencing BoneResorption in Tissue Culture

G. N. Jenkins and C. Dawes: The Possible Role of Chela-tion in Decalcification of Biological Systems

C. M. Lapiere and J. Gross: Animal Collagenase andCollagen Metabolism

British Agents: Bailey Bros. & Swinfen, Ltd., Warner House,48 Upper Thames Street, London E.C.4

American Association for theAdvancement of Science

1515 Massachusetts Avenue, NWWashington, D.C. 20005

1068

CHIEF CLINICALMICROBIOLOGIST* Philadelphia General Hospital

SALARY OPEN

Requires a doctorate in microbiology andfive years postdoctorate experience inmedical microbiology, including three yearsin a supervisory capacity.

CNIEFCLINICAL CHEMIST* Philadelphia General Hospital

SALARY $13,156-$14,374

Requires a doctor's degree in biochemistryor physiological chemistry and five yearspostdoctorate experience in clinical chem-istry involving clinical chemical analysis,interpretation and research, including threeyears supervising such activities.

Philadelphia General Hospital, the nation's6th largest hospital, is closely affiliatedwith five area medical schools and hasover 30,000 admissions and newborns andover 350,000 out-patients and emergencyvisits each year. A total of over $5,000,000has been committed for research at P.G.H.during the next five years. Opportunitiesfor research will be available for boththese laboratory directors.

TOXICOLOGIST* Philadelphia Medical

Examiner's Office

SALARY $9,672-$11,526

Requires a doctor's degree in the physical,medical or biological sciences includingcourses or experience in toxicology or

pharmacology and three years recent ex-perience in chemical analysis utilizing ad-vanced techniques, performance of analysisand interpretation of results.

The Medical Examiner's Office is responsi-ble for investigating all deaths of an in-determinable nature which occur in a cityof 2 million. The toxicologist will assistthe chief toxicologist and supervise thelaboratory which receives about 6,000 toxi-cology requests a year.

All applicants must be United States Citi-zens. Excellent Fringe Benefits. Send de-tailed resume to

JOSEPH GOLDBERGERDirector of Recruiting

500 Municipal Services Bldg.

Philadelphia, j Pa. 19107

SCIENCE, VOL. 147

wmmmq.

." mERSONNEL PLACEMENT

||||||||||||||POSITIONS WANTED llllllllllllAir Hygiene-Physiologist. Teaching/research posi-tion desired. Box 75, SCIENCE. X

Anatomist. Associate professor, medical school,long experience all branches, seeks short-termteaching position beginning September. Box 73,SCIENCE. X

Electrical Engineering summer position desired.M.I.T. junior. Instrumentation, circuits, high-speed photography. Programming knowledge:FAP, MAD, Fortran; operation of IBM 7040,1620. Box 72, SCIENCE. X

Information Scientist-Translator, Ph.D., German,Dutch, French, Polish, Russian. Part or fulltime. Box 66, SCIENCE. X

Microbiologist, Ph.D. University of Illinois, 1963,seeks research and/or teaching in microbiologyor sanitary engineering on the West Coast. Box76, SCIENCE. X

Microbiologist. Ph.D. 1965. Publications, patent.Biosynthesis antibiotics, radioactive labeled com-pounds; physiology; strain improvement; fer-mentations. Research institute/industry/university.Box 67, SCIENCE. X

Organic Chemist, Ph.D.; 15 years' teaching andresearch experience. Seeks new challenge, medici-nal organic chemistry background. Box 60,SCIENCE. 2/26

Ph.D. Soil Science (fertility), 1953, seeks academicor industrial appointment in U.S. or Canada.Box 78, SCIENCE. X

Physiological Psychologist, Ph.D. Research orresearch and teaching. Box 77, SCIENCE. X

Physiologist-Zoologist, Ph.D. Interests in mam-malian, endocrine, general physiology, radio-biology; university-college teaching, research.Experienced. Box 63, SCIENCE. X

Psychophysiologist Ph.D., comparative electro-physiology postdoctoral fellowship; available forresearch appointment. (b) Organic Chemist Ph.D.,directed research and synthesis of new drugproducts; seeks administrative industrial position.Write Woodward Medical Personnel Bureau, 185North Wabash Avenue, Chicago 60601. X

Research Assistant, half-time, New York. Ex-perience includes scientific editing, translation,drafting. Box 69, SCIENCE. X

Rheologist-Biorheologist, with heat transfer ex-

perience. Teaching, research, industrial back-ground. Multilingual. Desires challenging academ-ic or industrial position. Box 65, SCIENCE. X

Translator, B.S.Chem. German-English. Promptservice. Box 74, SCIENCE. 3/5

Virologist Ph.D., expects to graduate in August1965. Experience in biochemical alterations intissue culture due to virus infection. Seeks teach-ing and/or research position. Box 68, SCIENCE.

26 FEBRUARY 1965

||||||||||||POSITIONS WANTED ||||||||||||Ecologist Ph.D. Environmental biology, animalbehavior, vertebrate zoology; 9 years of teachingand research. Desires challenging academic posi-tion. Publications, textbook in press. Box 64,SCIENCE. X

Microbiologist, Ph.D. Specialty: medical mycologyand bacteriology. Several years of experience.Desires academic position with research oppor-tunity and/or supervision of clinical microbiology.Box 55, SCIENCE. 2/26

Organic Chemist, Ph.D. 1958; 7 years of researchexperience; desires teaching/research position.Box 71, SCIENCE. X

Parasitologist, Ph.D., 14 years of research ex-perience with 18 publications; 4 years of teachingexperience. Desires research/teaching position.Box 70, SCIENCE. X

Ph.D. with 10 years of teaching, research, andapplied experience in health physics, radiationdosimetry, and electronics. Desire responsibleposition with research opportunities. Box 57,SCIENCE. 2/26

||||||||||||||| POSITIONS OPEN ||||||||||||||||(a) Biochemist/Physiologist, wound healing basicresearch; leading drug mfr; E; $15,000. (b) Re-search Scientists, chemical-biological warfareproject; W; $12,000 to $20,000. (c) Bacteriologist,direct product testing dept; research inst; E;$15,000. (d) Endocrinologist, D.V.S. or Ph.D.,product develop. drug mfr; MidW; $12,000. (e)Parasitologist, veterinary product R&D; expand-ing mfr; MidW; $12,000. Write Woodward MedicalPersonnel Bureau, 185 N. Wabash, Chicago 60601.

Professional Placement Seri-ice for 68 Years

RESEARCH OPPORTUNITYImmediate vacancy with medical college locatedin northwestern Philadelphia for chemist or bio-chemist to assist with research project in lipidmetabolism. Position requires M.S. or B.S. degreewith previous research experience. Salary depend-ent on background and qualifications. Excellentbenefit program. Write

Box 58, SCIENCE 2/26; 3/5

FISHERIES RESEARCH BOARD OF CANADAPHYSICIST OR BIOPHYSICIST

With at least M.Sc. and experience in ultra-sonics and electronics to initiate study intophysical methods of detecting certain parasitesin fish flesh. Initial assignment to Ottawa Lab-oratory of National Research Council. Salary$7000 to $12,000 depending on atialifications.Applications to Chairman, Fisheries ResearchBoard of Canada, Ottawa 8, Ontario, Canada. X

INSTITUTE FOR COMPUTER ANALYSISOF SYSTEMS AND PROCESSES, INC.

188 NEEDHAM ST., NEWTON, MASS. 02164Telephone No.: AC 617 969-9190

Analog computer analysis of systems and proc-esses in biology, medicine, chemistry, engineering,economics, industry.Mathematical formulation, quantitative synthesisof functional systems, kinetic analysis.

SERVICES SUB-CONTRACTSLONG AND SHORT-TERM RESEARCH

CONTRACTS**Scientists are invited to send proposals for co-operative research in applied and basic sciencesfor application of contracts.

I

SeniorResearch

Bacte nologist~

I I

|I||||||||||||I|II|||||||||||||POSITIONSOPEN |||||||||||||||||||||||||||||lPositions Open

GRADUATE ASSISTANTSHIPS IN BIOCHEM-ISTRY: Teaching and research appointments lead-ing to Ph.D. Available for academic year 1965-1966. Wide variety of research projects. Excellentfacilities in a modern building. Generous stipendplus tuition and fees for 12 months. Apply byApril 1, 1965 to Dr. Richard Abrams, Depart-ment of Biochemistry and Nutrition, GraduateSchool of Public Health, University of Pittsburgh,Pittsburgh. Pennsylvania 15213.

INHALATION TOXICOLOGYINDUSTRIAL HYGIENE

Group supervisor for inhalation toxicology andindustrial hygiene chemistry. Initiate, supervise,performance of and coordinate these functionswith overall activity of Environmental HealthLaboratory dealing with a variety of agriculturaland industrial chemicals. Please address repliesto Employment, American Cyanamid Company,Box 400, Princeton, New Jersey.

An Equal Opportunity EmployerSPACE FOR CANCER RESEARCH

A tax-exempt, nonprofit Institute directed byits scientific staff is expanding its present pro-gram. Current research is in cancer chemo-therapy. Established investigators with supportedprograms in cancer research, desiring affiliation,are invited to join and form a nucleus forother divisions. Reply to John B. Field, M.D.,Ph.D., Scientific Director, Western Institute forCancer and Leukemia Research, P.O. Box 696,Los Angeles 34, California. X

JUNIOR ANDSENIOR GEOLOGISTS

Applications are solicited by the govern-ment of the Province of New Brunswickfor positions as Junior and Senior Geolo-gists in expanding geological survey workbeginning April 1, 1965. Fields of special-ization-groundwater, petrology, structure,stratography, metallic and industrial min-erals. Research facilities available. Salarycommensurate with qualifications and ex-perience. Address resume to Director,Mines Branch, Dept. of Lands and Mines,Province of New Brunswick, Fredericton,N.B. Canada.

UNIVERSITY OF ALBERTAEdmonton, Alberta, Canada

ASSISTANT PROFESSOR-BACTERIOLOGYApplications are invited for the post of As-

sistant Professor in the Department of Bacteriol-ogy. Applicants should have completed post-graduate training and have developed a personalresearch interest. The successful applicant willbe required to teach both undergraduate andpostgraduate students and to initiate and developan active research program in either a medicalor a nonmedical field. Facilities for investigationin either field are available. After 4 years aca-demic staff will be considered for appointmentwithout term. The commencing salary is $8500or higher depending on qualifications and experi-ence. The appointees may be eligible for a re-moval grant.

Further details may be obtained from Chair-man, Department of Bacteriology, University ofAlberta, Edmonton, Alberta, Canada. X

Pharmaceutical Research Departmenthas opening for Ph.D. Microbiologistto develop small animal tes q-rnt'- s

for screening compounds for antibac-terial activity. Experience or trainingin Chemotherapy desirable.Modern laboratories situated in ruralCentral New York State.

Forward resum' to: John E. Wedge, Professional Employment Manager

THE NORWICH PHARMACAL COMPANYNORWICH, NEW YORK 13815An equal opportunity employer

1069

CLASSIFIED: Positions Wanted. 25c perword, minimum charge S4. Use of BoxNumber counts as 10 additional words.Payment in cdvonce is required.

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Replies to blind ads should be addressedas follows:

Box (give number)SCIENCE1515 Massachusetts Ave., NWWashington, D.C. 20005

m

POSITIONS OPEN IIIIIIIIIIIIHII | IHIIIIIIIIIIIII POSITIONS OPEN IIIIHIIIIHIIIIIIIHI IFIIIIIIIHHHIII I ELL WSHIPSBIOMEDICAL ENGINEER

B.S. in electrical engineering or physics withM.S., Ph.D., or experience in biophysical scienceand computer technology for clinical pharmacol-ogy unit. Position involves providing technicalassistance in the acquisition, development, anduse of electronic instrumentation to facilitateautomation and analysis of data from clinicalpharmacologic and laboratory procedure.An equal opportunity employer. Please send

complete resume to:TECHNICAL EMPLOYMENT COORDINATOR

THE UPJOHN COMPANYKalamazoo, Michigan

The Department of Psychiatry in the YaleUniversity School of Medicine is offering a pro-gram of training supported by a USPHS grant toprovide intensive experience in developing re-search skills in areas which couild lead to in-vestigative careers in mental health. The candidatemay choose laboratory training in the areas ofhis choice (pharmacology, neurochemistry. neturo-physiology) as well as specialized research areasin psychology, and so forth; training in clinicalpsychiatry is provided when required. Applicantwill be accepted from candidates with the M.D.or Ph.D. degree. Nonmedical students (fromphysics, psychology, biology, pharmacology, andso forth) will be offered sufficient clinical train-ing to provide relevant experience for his re-search interests. The training program is conceivedof as being primarily tutorial in nattLire. Stipendsare currently $6000 and $7000 for the first andsecond years, respectively, althouglh appoint-ments are made yearly. In special instances sup-port for regular or special fellowship awardsmay be provided. Inquiries may be addressed toMrs. Eleanor G. Himel, Admtinistrative Assistant,Biological Science Program, Department of Psy-chiatry, School of Medicine, Yale University,333 Cedar Street, New Haven, Connecticut. X

UNIVERSITY OF THE WEST INDIESLecturer or Assistant Lecturer in Phtarmacology

Applications are invited for the post of Lec-turer or Assistant LectuLrer in Pharmacology. Theduties of the post will be to instruct students inpharmacology reading for the medical degrees ofthe University of the West Indies, and to doresearch in pharmacology. Duties to be asstimed1 October 1965.

Salary scales: Assistant Lecturer (medicallyqualified) £1350 to £1500, (nonmedical) £-1200to £1350; Lecturer (medically qualified) £-1650to £2450, (nonmedical) £1450 to £2290. Childallowance (limited to three children) £-150 forthe first child, £100 for the second child, and£-50 for the third child. F.S.S.U. housing allow-ance of 10 percent of salary, or, if available, un-furnished accommodation will be let by the Uni-versity at 10 percent of salary. Up to five fullpassages on appointment, on normal termination,and on study leave (once every 3 years). Appoint-ment for 3 years in the first instance.

Detailed applications (10 copies) giving fullparticulars of qualifications and experience. dateof birth, and the names of three referees shouildbe sent, as soon as possible, by persons livingin the Americas and the Caribbean area to theRegistrar, University of the West Indies, Kingston7, Jamaica, and by all other persons to the Sec-retary to the Senate Commlittee oni Higher Edit-cation Overseas, University of London, SenateHouse, London W.C. 1. Further particulars maybe obtained similarly. X

1070

DEPARTMENT OF BIOLOGYUNIVERSITY OF WATERLOO, ONTARIO

Inquiries are invited from students expecting toobtain Honors degrees in biological subjects in1965 who wish to proceed to higher degrees in aCanadian university. The department expects tohave available a tumber of teaching fellowships(value $2200 per annum) and possibly othermonies for support of graduate students. Appli-cants should write, before 20 March, to Dr. H. B.Noel Hynes, Departmenzt of Biology, giving fullparticulars of themselves. X

PHARMACOLOGISTM.S. degree with 3 to 5 years' experience inpharmaceuticals, animal health or other field re-lated to medicinals and their uses. Positionreqtiires ability to develop new products andformtLilations in field of animal health, oppor-ttunity to assist actively in the formation of anew group. Address:

Box 59, SCIENCE

||||||||||||||||| FELLOWSHIPS

Applications are invited from U.S. citizens forfellowships in Steroid Research. Postdoctoral,$6000 plus dependent allowance. Predoctoral,$3600. Write Dr. D. S. Loayne, Worcester Foun-dation for Experimental Biology, Slarewsbury,Massachusetts, or Dr. K. B. Eik-Nes, Depart-mnent of Biocheinistry, College of Medicine, Uni-versity of Utah, Salt Lake City. X

TRAINEESHIPS FOR GRADUATE WORKIN PHARMACOLOGY

A 4-year program of course work and researchtraining leading to the Ph.D. degree is offered.U.S. citizens only. Researchi in fundamentalmechanisms of drug action. Starting annual sti-pend $2400 plus tuition and $500 per dependent.Early application for September 1965 stronglyadvised. Write: Department of Pharmacology,School of Medicine, State Univ. of New Yorkat Buffalo, 122 Capen Hall, Buffalo, N.Y. 14214.

2/26, 3/12

NEW ZEALANDDEPARTMENT OF AGRICULTURESENIOR RESEARCH FELLOWSHIPS

Applications are invited for awards to be takenup in 1965 for research at various departmentalresearch centers at the direction of the Director,Agricultural Research. Facilities and equipmentare available for all scientific disciplines appli-cable to soil science, plant and animal nuLtrition,and animal physiology and pathology, includingphysics, chemistry, biochemistry, statistics, biol-ogy, veterinary sciences, and bacteriology. Excel-lent facilities are also available for handlingdomestic animals for research purposes.

General Qualifications: Ph.D. degree or eqtuiva-lent. Applicants without Ph.D. degree will beconsidered where they have a distinguished rec-ord of scientific research. A good working knowl-edge of English is required. There is no age limitor restriction regarding nationality of applicants,but successful candidates must meet New Zealandimmigration requirements.

Salary: Emoluments range from £NZ1695 to£NZ2135 a year, with an additional £NZ250 ayear for a married man. These amounts are sub-ject to taxation in Newv Zealand.

Tenure: Fellowships will be awarded for aninitial period of between 6 months and 1 year,but may be extended to a total period of 3 years.

Travel: A grant will be paid equivalent to thecost of return rail and sea fares at tourist-classrates betweeni home and research instittution inNew Zealand. A further amount of two-thirds ofthis travel grant mav be paid to a marriedFellow who is accompanied by his wife.

In New Zealand reasonable traveling expenseswill be paid in furtherance of research work.

Applications: Applications are required to besubmitted on forms available from the Director,Agricultural Research, Ruakura Agrictiltural Re-search Center, Hamilton, New Zealand. Appli-cant must supplv names of two nersons to whomreferences can be made. Applications, with arecent photograph and supporting documents,must reach New Zealand 3 months after the dateof this advertisement. Late or incomplete appli-cations will not be accepted. If nossible, success-ful candidates will be notified within 6 weeks ofthe closing date.

Information: Information about work at Rua-kura Agricultural Research Center, WallacevilleAnimal Research Center. Invermay ResearchStation. Winchmore Irrigation Research Station,and Horticultural Research Center, Levin, atwhich the Fellowships are tenable, is obtainableon request from the Director, Agricultural Re-search, Ruakura Agricuiltural Research Center,Private Bag Hamilton, New Zealand. X

The Department of Biology, University of Water-loo, Ontario. Canada, invites applications forfaculty appointments from microbiologists andzoologists with particular interest in neurophysi-ology. Appointments will date from 1 July1965. Salaries offered range from $6000 to $9700according to qualifications. Applications shouldbe submitted to Dr. H. B. Noel Hynes, Chairman,Department of Biology, before 15 March 1965,together with names of two referees. X

Applications are invited for PREDOCTORALTRAINEESHIPS IN BIOCHEMISTRY. Thestipend for first-year Trainees is $2,400 plustuition and a $500 allowance for each de-pendent. No services are required of first-year Trainees other than successful progresstoward the Ph.D. degree. During subsequentyears a very limited amount of teaching ex-perience is included as part of the trainingprogram. Traineeships awards may be madeonly to U.S. citizens. Inquiries should beaddressed to: Director of Graduate Studies,Department of Biochemistry, Medical Center,University of Kentucky, Lexington, Ky. 40506.

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SCIENCE, VOL. 147

BIOCHEMISTS- Ph.D.Expanding R&D activities have made several re-search opportunities availasle for P'h.D.'s biroadlytrained in hiochsemsistry with to 5 years post-doctoral experience. D)umties sill involve aiding inthe planning. iisitiatiilg ani(i sspervisinsg of re-search investigations in the areas of neurohio-chemistry, enzyiisology or lipid nietabolisns. Akddi-tional experieiiee iii p)iiysiology is desirable.

PHYSIOLOGIST-PHARMACOLOGIST- Ph.D.

Seeking a Ph.D. ssith broad training in pharma-cological/pliysiological disciplines wsith O to 5years' experienice. Iteseairhii (;t)torttinsi 1icit.v,cinsvestigatiolis in a vairiety of areats inctldiw- an-algesies, atiti-iisttaiiiiiiatory agenits, nasal decont-gestents, reslpiratory phiysiology an(i gasiroiniex-tinal physiology dharmaeology. A knoss ledige (Afthe princitltes of statisticall evaltiation of biolog-ical data is Ihigisly desirable.

Please send r;sum6 inslsi(ling salaryrequirements to: Cyrus M. Greenberg,Ph.D., Director of Scientific Emoloy-ment, SMITH KLINE & FRENCHLABORATORIES, 1570 Spring Garden Street,Philadelphia, Pa. 19101. Ani Equal OpportunityEmployer.

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THE SCIENCE OF PRODUCTION. When producing advanced, complexcommunications equipment on a vast scale to exact standards, science isneeded on the production line as well as in the laboratory. That's why WesternElectric engineers took the scientific approach in developing a new productionplanning and control system in several of its multi-product plants. A computer-ized file contains details of all equipment and materials used by a plant. Require-ments for a product are put on punched tape or cards and fed into the computerwhich converts them into efficient control information: it predicts the time neededfor every aspect of manufacture, schedules equipment, allocates manpower, andprocesses all documents. By continually improving manufacturing methods,Western Electric engineers and production people help the Bell telephone com-panies, coast-to-coast, bring America the finest in communications at low cost.

7&Western ElectricManufacturing & Supply Unit of the Bell System

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when two persons can sesame magnified image simu

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m orssously tnrougn a Liuai viewingMicrostar.® Each viewer enjoys the same superbflat field, high-quality image that is available onlywith the AO Series 10 Microstar. An illuminated,transparent arrow is superimposed on the field ofview. It can be freely positioned to pinpoint any

e detail for both observers.cations are limitless. It's

,St1d1 -r - -rspeciaiiy suitea ior consuitations,training and advanced teaching because it offerssimultaneous viewing and critical resolution thatis impossible to achieve by projection methods.The Dual Viewing Microstar gives you a new

method of effective communication.*REGISTERED TRADE MARK AMERICAN OPTICAL COMPANY

/ 1 AMERICAN OPTICAL COMPANYI '~' INSTRUMENT DIVISION 0 BUFFALO, NEW YORK 14215 I

Dept. N4I Gentlemen: Please send complete information on the AO Dual Viewing Microstar.

Name |Address

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