INTERNATINAL AGENCY FOR RESEARCH ONCANCER TRAVEL FELLOWSHIPS

The Eighteenth World Health Assembly of the WorldHealth Organization approved the establishment of anInternational Agency for Research on Cancer. The objec-tives of the Agency include the promotion of inter-national collaboration and support of all phases ofcancer research, including education and training ofpersonnel.

Applications are invited from established cancerresearch workers for TRAVEL FELLOWSHIPS. These fel-lowships are designed to enable fellows to spendperiods varying from a few weeks to several monthsin other laboratories. The objectives of such visits mayinclude consultation, the acquisition of new techniques,etc. Travel to symposia or congresses cannot besupported.

The fellowships will cover the cost of travel toapproved centres and an appropriate allowance to-wards the cost of accommodation and other incidentalexpenses.

Applications should be made on forms availablefrom:

The Director

International Agency for Research on Cancerc/o World Health Organization

Avenue Appia1211 Geneva 27Switzerland.

PersonnelPlacement

iiir111 POSITIONS WANTED

Have Experience Will Travel. Isotope, EM-radiography, computer, etc. Fifty publications, age41. Ben Bloom, Ph.D., NIH.

Medical Translator (German/English) accepts free-lance assignments. Prompt service. Reasonablerates. Please write: 68-43 Groton Street, ForestHills, N.Y. 11375. X

Physiologist, Immunologist, Radiologist, M.D.,Ph.D., desires academic or research position.Research experience in immunopathology. Box175, SCIENCE. X

Ph.D. Microbiologist. Minors in Biochemistry andMycology. Background of R&D in medical-indus-trial area. Product oriented, competent in bio-engineering, experienced as teacher and super-visor. Box 189, SCIENCE. 9/16

IIlIllIfliPOSITIONS OPEN ||||||||||||I|||||||I||||Clinical Chemist

Ph.D.

Opportunity for Clinical Chemist interested ingeneral clinical chemistry situated in central re-ferral and hospital laboratories located in LosAngeles area. Extensive automation. Salary openand -dependent on training and experience. Pleasesend resume to Box 178 SCIENCE.

1430

I|||||||II|||||||f||I| POSITIONSOPEN *IEIIIIfII1IIIIIII

PHARMACOLOGISTSMajor research laboratory in California haschallenging opportunity for M.S. or Ph.D.Pharmacologists to assist in the secondaryevaluation and development of a wide varietyof novel synthetic chemicals using classicaland advanced pharmacodynamic techniques.Industrial experience in drug research anddevelopment is highly desirable. Excellent sal-ary and outstanding employee benefit pro-grams. If interested send complete resume to:

SHELL DEVELOPMENTCOMPANYAgricultural Itesearch Division,P.O. :Box 3011,Modesto, Calif. 95353

An Equal Opportunity Employer

SHELL

I3Ph.D. Biochemist

Academic research position available imme-diately for a Ph.D. biochemist with training inenzymology to participate in studies of lipidsand/or steroid hormones. Salary open. Sendresume to Dr. S. L. HSIA, University ofMiami, 1600 N.W. 10th Ave., Miami, Florida.

SCIENCE DEPARTMENT CHIEF EDITOR.Leading, rapidly expanding educational pub-lishing company seeks a person to head itsScience Department. Ph.D., teaching experi-ence, and knowledge of modern curriculumtrends, K-12, are essential. Editorial experi-ence is desirable. All resumes will be han-dled in confidence. BOX 190, SCIENCE.An Equal Opportunity Employer.

FISHERIES RESEARCH BOARD OFCANADA

Scientist-Marine Ecology to assist in theArctic Biological Oceanographic programmeof the Arctic Biological Station at Ste. Annede Bellevue, near Montreal, Quebec, Canada.Several months field work each year inCanadian Arctic. Salary scale Scientist 2,$8350.00-$10,800.00 or Scientist 3, $11,300.00-$14,000.00. Appointment will be made at asalary commensurate with experience andqualifications. Applicants should have or beabout to receive Ph.D. in biology.Address enquiries for further details to: P.O.Box 400, Ste. Anne de Bellevue, Quebec,CANADA.

RESEARCHVIROLOGIST

Ph.D. Recent graduate or with ex-perience. Background and interestsin viral diseases. Medical Micro-biologist can qualify. Biochemicalbackground desirable. Graduatestudents expecting degrees in nearfuture will be considered. Inter-ested persons write to:

MR. GORDON L. GERHARD,Supervisor,Professional Employment

O_ Merck Sharp & DohmeResearch LaboratoriesWest Point, Pa.

An Equal Opportunity Employer

SCIENCE, VOL. 153

PRVIC OFSSACEAaPROVINCE OF SASKATCHEWAN

CAREER OPPORTUNITIES

ENVIRONMENTALHEALTHCHEMIST

University graduate in chemistry to work in theOccupational Health Branch laboratory concernedwith industrial hygiene and air pollution. Locatedin Regina, Saskatchewan. While some field workin the province may be required this will likelybe less than 10% of one's time.

Salary: to $8,736(Canadian)

depending on qualifications and experienceFRINGE BENEFITS: Superannuation; group lifeinsurance; three weeks vacation annually; sickleave.Reasonable moving expenses paid.Appointment will be made as soon as a suitablecandidate comes forward. When requesting appli-cation forms or other information please state age,education, current salary and salary expected.Contact: Director, Occupational Health Branch

Saskatchewan Department of PublicHealth

Provincial Health BuildingRegina, Saskatchewan

.................. .......................... "911 llElMllllllllllll1||^ IIlal«lllll|al||||umn

willinlimilimillinillll - -- - - -- lfilitilliffilinnilliinim

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I POSMONS OPEN 111111111110

ExperimentalPathologist

Argonne National Laboratory, located inthe suburban Chicago area, has a re-search position available for an Experi-mental Pathologist. Medical or veterinarydegree is required. Graduate trainingand/or experience in animal pathology isdesirable. Study program is with dogsand other experimental animals and em-phasis is on the effects of ionizing radia-tions, incidence of spontaneous disease,and aging in controlled colonies.Argonne is internationally known for

its magnificent research environment.The Laboratory offers competitive sala-ries, excellent benefits, outstanding facili-ties and support personnel.

Qualifications willdetermine position and salary.Professional PlammutArgonne National Laboratory9700 S. Cass AvenueArgonne, Illinois 60439

IO F L L CO FEjATOOperated by the University of Chicago under

contract with the United States Atomic Energy Commission.AN EQUAL OPPORTUNITY EMPLOYER

IMMUNOLOGISTYoung Ph.D. with industrial experience

SCIENTIFIC LIAISONM.S. or Ph.D.-To provide liaison with foreign and domestic divisions of pharmaceutical

company. Flair for teaching and writing. Ability to read French essential.Please send resume in confidence

to:Dr. S. AvakianVice-President

Research and Development

DENVER CHEMICAL COMPANYSTAMFORD, CONNECTICUT

3MY

RESEARCH PHARMACISTAn opportunity exists on our researchstaff for a Research Pharmacist holding aB.S., M.S., or Ph.D. degree and having ex-

perience in the pharmaceutical industry.Position involves dosage form research onnew pharmaceuticals and is in a new

group with excellent opportunity for ca-

reer advancement. If you are interested,please send a resume to:

Roger G. KrantzSpecial Recruitment Supervisor

MINNESOTA MININGAND

MANUFACTURING COMPANY2501 Hudson Road

St. Paul, Minnesota 55119

An equal opportunity employe

BIOCHEMISTS-Doctorate, Master's orBachelor's degree. Ful time positions in pro-tein and enzyme chemistry. Experience andinterest in nucleic acid chemistry and tracerstudies preferred. Modern, well-equipped lab-oratories located in Phila. suburbs. Stimu-lating intellectual environment with oppor-tunity for growth and development. Pleasesubmit confidential resume and salary require-ments to Box 191, SCIENCE.

PHARMACOALOGISTI(CHEMICAL) Ph.D.

Excellent opportunity in basic andapplied drug research for recentPh.D. with 2-6 years post-doctorateexperience to assist in the designand analysis of animal experimentsand coordinate research performedin outside laboratories. Candidatewill assist in developing new labora-tory facilities and programs. Well-known, progressive manufacturer lo-cated in the Princeton-Rutgers area.

Send resume and salary required inconfidence to Personnel Manager

CARTER-WALLACE, Inc.Cranbury, New Jersey

\K An equal opportunity employer%~~%k Id

J1431

3 full-time Faculty positions open in Physi-ology or Pharmacology. Rank and salarycommensurate with experience. Ph.D.with teaching experience in Physiologycan start at $12,000, on or before January1, 1967. Apply now to: Dr. James A. Or-cuff, Chairman, Dept. of Pharmacology,Coil. of Osteopathic Medicine and Surgery,Des Moines, Iowa 50309.

POSITIONS AVAILABLE: Entomologist orBiologist with Entomological Experience, M.S.or B.S. To work on research program in-volving studies of mass rearing of Lepidop-terous insects. Experience in latest histologi-cal techniques desirable. Please send resumeswith salary history to: Nutrilite Products, Inc.,5600 Beach Boulevard, Buena Park, Cali-fornia 90620.

Entomologist, M.S. or B.S. To work on de-velopment of bioassay techniques for micro-biological insect control agents. Knowledgeof statistical methods desirable. Please sendresumes with salary history to: Nutrilite Prod-ucts, Inc., 5600 Beach Boulevard, BuenaPark, California 90620.

b

16 SEPTEMBER 1966

MICROBIOLOGIST, Ph.D., to head small research sec-tion. Minimnum 5 years experience in applied research.To conduct R&D in ruminant nutrition, fermentationprocesses. andi relate(l fields.Ph.D., IN AGRONOMY, PLANT PHYSIOLOGY, SOILSCIENCE, or HORTICULTURE, 3-5 years experiencein commnnerical agronomstic research. sousie flelsi experiencedesirable. To supervise applie(i researeli and greenhousestu(ilies in plaist ntutrition, fertilizers, an(i culttural prac-tices.

Soiise in(lustrial exp)erience is preferre(d for these opei-ings in a rapidlly gross iig department of our tentralRteseareh facility in a rtiral area between Baltimore an(iN aslhington. isone trasel required. Sen(d your resusse inconfislence to: Industrial Relations, W. R. Grace & Co.,Research Division, Clarksville, Md. 21029

An Eqiual Opportunity Emptsloyer

PARASITOLOGISTMajor research laboratory in Californiahas challenging opportuLnity for M.S. orPh.D. Parasitologist to ass.st in an ex-panding research program with both hel-minth and protozoan parasitic diseases. In-dustrial experience in parasite chemother-apy and development is highly desirablebut not required. Excellent salary and out-standing employee benefit programs. If in-terested send complete resume to:SHELL DEVELOPMENT COMPANY

Agricultural Research DivisionP.O. Box 3011, MIodesto, California 95353

An Equal Opportunity Employer

*|||||| POSITIONS OPEN ilJjNfjLiterature Scientist: Position available in Division ofNutrition Reesarch. Responsibilities include writing abi-monthly interpretive review of recent nutrition re-seareh, answering inquiries pertaining to nutrition an(lhealth, and providing scientiflc assistance for the library.Applicants must have advanced training in nutrition.preferably a Ph.D. in nutrition or biochemistry. AnMS. bith experience will be considered. Writing abilityessential. Excellent opportunity for professional growthansi slevelonment at the national level. Starting salaryconissensuirate swith training andi experience. Liberalfringe and retirenment beneflts. Write: Dr. M. F. Brink,Director of Nutrition Research, National Dairy Council,III North Canal Street, Chicago, Illinois 60606.

RESEARCH VETERINARIANHAZLETON LABORATORIES, a leading Independentcompany specializing in the Life Sciences. needs a Vet-erinarian ssith 01-: years' experience to design, conduct,coordinate and e aluate chemical carcinogenic prograntiswith priniates. Oipportunity for scientific meetings at-tendance aisi( publiPations. Liiberal ensployce benefit pro-graini ineltsiding profit sharing. Please sen(d resume to:Ilall A. Aetuff .tssistant Personnel Alanager, HazletonLaboratories, Inc., P.O. Box 30, Falls Church, Virginia22046 (Metropolitan Washington, D.C.)

An Equal Opporttunity Emnployer 3I/F

The Market PlacefAIIIIIJI1 BOOKS AND MAGAZINES jjj|j|jjjj

II111111 SUPPLIES AND EQUIPMENT 1

111111111I1111PROFESSIONAL SERVICESHISTOLOGY SERVICE

RAPID SERVICE Large Orders Quickly Proc-essed! Quickly Shipped! Professional supervi-sion of every order. Free estimates on specialproblems. Distant points serviced swiftly. Spe-cial stains and techniques available. Fully pro-tected shipments. HISTOLOGY SERVICE, INC.4801 N. Broad St., Philadelphia, Pa. Zipcode19141, (215) DAvenport 4-5800

TRACE ELEMENTPROBLEMS?Contact: Activation Analysis Service,Dept. AA-46, General Atomic Division,General Dynamics, P.O. Box 608, SanDiego, California 92112. Or, phone: AreaCode 714, 453-1000, Ext. 618.

1432

PathologistDYM, Ph.D. or M.D.Our Life Sciences Division isexpanding and needs a quali-fied pathologist to participatein design, coordination andevaluation of animal researchprograms in the field of toxicol-ogy and drug research. Experi-ence required.

If you are seeking an excellenitopportunity to work with ateam of scientists from otherdisciplines on a variety of as-signments, please contact orsend resume to John S. Dev-ereux, Professional Staffing.

20 Acorn ParkCambridge, Massachusetts

(617) UN 4-5770An Equal Opportitnity Emeployer

UNPUBLISHEDMANUSCRIPTSWANTEDAT ONCE

We will publish, promote, distribute your book.If your manuscript has unusual possibilities,we will publish it on a straight royalty or par-tial subsidy basis. Send manuscript for freereport or write for Brochure SX.

Seth RichlardsPUBLISHER

PAGEANT PRESS101 Fifth Avenue, New York, N.Y. 10003

SPRAGUE-DAWLEY, INC.Pioneers in the development of theSTANDARD LABORATORY RAT.

P.O. Box 4220Madison, Wisconsin

CE 3-5318

StaffPhysicians

The Ames Company, Division of Miles Laboratories Inc., is a leaderin the fields of laboratory diagnosis and medical instrumentation. Weare increasing our divisional medical staff and have two excellentopportunities for graduates of approved medical schools who arecertified or qualified in a specialty field. These positions are inter-national in scope. Experience in the pharmaceutical industry isdesirable but not required.

Clinical Research, InstrumentationThis position includes responsibility for supervision of pro-grams concerning clinical evaluation of new product conceptsand developments with strong emphasis on biomedical in-strumentation. Training and experience in nuclear medicineor biomedical instrumentation is highly desirable.

Clinical Research, Diagnostic ProductsThis assignment includes responsibility for supervision ofprograms of clinical evaluation of new product concepts anddevelopments with strong emphasis on products for clinicallaboratory diagnosis.

These positions require the person to communicate effectively withphysicians in academie and clinical practices of medicine. Sometravel is necessary.

Salary commensurate with training and experience plus an excel-lent benefits program including profit sharing. Relocation expellsespaid. Send curriculum vitae in complete confidence to:

L. C. Conches, Salaried Placement Manager, Dept. 304-A

MILES LABORATORIES, INC.ELKHART, INDIANA

An Equal Opportunity Employer

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SCIENCE, VOL. 153

POSITIONS OPEN

Report from H

i^_ amplifiersfor coaxial transmission

Field-trial installation of the new tran-sistor amplifiers in manhole near Dayton,Ohio. Amplifiers and associated circuitscomprise repeaters; they are mountedin drawer-type boxes, then placed ingas-tight cylindrical housings. With thenew system, a pair of coaxials will carry

up to 3600 telephone conversations on

an 0.5-MHz to 20-MHz band. A fullyutilized coaxial cable could handle up

to 32,400 conversations. On a coast-to-coast connection over the new system,about 2000 repeaters would be neededfor each direction of transmission, witha total one-way amplification of as muchas 75,000 dB.

Low-distortion, wideband transistorizedamplifier developed at Bell Laboratoriesfor a new coaxial cable system.

Every "hi-fi" enthusiast knows thatfaithful reproduction of music re-quires an amplifier with constant gainand low distortion over a wide bandof frequencies. Amplifiers for suchpurposes are available today with 100watts of power, gain deviation of lessthan 1.0 dB from 20 to over 20,000hertz, and less than 0.4% distortion.This high level of performance hasbeen obtained by utilizing to thefullest the best of today's electronicstech nology.At Bell Telephone Laboratories, the

development of modern coaxial cablesystems for transmitting thousandsof telephone conversations also re-quires amplifiers which push elec-tronics technology to its limits. Thelow-frequency limit for these ampli-fiers need not be as low as that forhi-fi amplifiers, but the high-fre-quency limit must be much higher-20 megahertz. The power output canbe less-on the order of 1/10 watt-but the gain deviation must be lessthan 0.25 dB, and the distortion mustbe limited to 0.0004%. These require-ments arise from the large number ofsimultaneous voice signals whichthese amplifiers must transmit andthe large number of amplifiers thatmust be connected in tandem for acoast-to-coast system.

In the past, such amplifier perfor-mance was impossible. Today it ispossible because of circuit-designtechniques which include close con-trol of feedback and the use of digitalcomputer techniques to optimize cir-cuit parameters. And of consider-able importance to the design, newtransistors were developed at BellLaboratories with properties that areconstant over wide dynamic and fre-quency ranges.

Bell Telephone Laboratories® Research and Development Unit of the Beg Systin

i74 announces a new Micro Model...CARBON-HYDROGEN ANALYZERINGRAM COMBUSTION TYPE

* Utilizes accepted standard methodwith gravimetric finish

n For use with samples in themilligram range (1 to 20 mg)

* Combustion and oxygen sweep cycleof 4 minutes duration

/a CARBON-HYDOCI ;

6446K I O.

Combines rapid, programmed combustion with ac-cepted standard gravimetric finish.

Samples in the 1 to 20 mg range are weighed intoinexpensive, one-use aluminum capsules. They arethen burned in an excess of oxygen in the aluminacombustion chamber in which the temperature ismaintained at 900°C. Carbon dioxide and water arecollected and weighed in glass absorption tubesfilled with Ascarite and Dehydrite. A circular sliderule is included for rapid calculation of results.

Automatic programming of the 4-minute combus-tion and oxygen sweep cycle, and the use of seal-able absorption tubes, permit analysis of 30 to 40samples within an 8-hour working day.

Applicable to a wide variety of solid and liquid samplesincluding those containing boron, fluorine, phosphorus,silicon and metals. Interference from halogens and sulfur isavoided by combustion tube packing of silver gauze and silvertungstate on magnesium oxide. See H. J. Francis, Jr. andE. J. Minnick, Microchemical Journal, Vol. 8 (1964), p. 245;also G. Ingram, Microchemical Techniques, Vol. II (1962),pp. 495-526.6445-W05. Micro Carbon-Hydrogen Analyzer, Thomas,as above described, complete with supply of absorption tubes,sample capsules, absorbents, materials for packing combus-tion tube, calculator, etc. For 115 volts, 60 cycles, a.c.............................................. .....1,600.006446-K10. Calculator, Carbon-Hydrogen, Thomas. Atwo-decade circular slide rule for rapid conversion of sampleweight and absorption tube weight gain to %C or %H. Sup-plied with above but suitable for similar gravimetric methods................................................ ...18.00

Detailed descriptive bulletin sent upon request.

ARTHUR H. THOMAS COMPANYScientific Apparatus and Reagents

VINE STREET AT 3RD * P. O. BOX 779 * PHILADELPHIA 5, PA., U. S.A.,