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TIME YOUR TESTS IN SPLIT-SECONDS! ALL PURPOSE LABORATORY TIMERS MODELS AT $25.00 to $31.00 You can set the large 8" dial for any desired time period within an unusually wide range of 3600 possible settings, (ie., 1 sec. to 60 min., 1 min. to 60 hrs., etc.). At end of preset interval, alarm sounds and external load is automatically switched on or off. GRA-LAB MICRO TIMERS, Electric Stop Clocks, are available in 1 /10 sec. or 1 / 1000 min. graduations for split-second measurements of elapsed time in laboratory or production operations. Price $39.50 WRITE FOR COMPLETE CATALOG! DI MCO-GRAY COM PANY Di 203 E. Sixth St. AYTON 2, OHIO AAAS Symposiuzn Volume SYSTEM OF UNITS- NATIONAL AND INTERNATIONAL ASPECTS Edited by Carl F. Kayan "This book is a compilation of papers on the subject of measurement standardization and should contribute much to helping each of us reach a position regarding this problem." Journal of Engineering Education, Oct. 1962 308 pages, 1959 ....................7$6.75 AAAS members discount price .......$5.75 Order from AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE Room 103 1515 Massachusetts Ave., NW Washington, D.C. 20005 714 GLASS ABSORPTION CELLS made KLETT by SCIENTIFIC APPARATUS Klett-Summerson Photoelectric Colorimeters- Colorimeters - Nephelometers - Fluorimeters- Bio-Colorimeters - Comparators - Glass Stand- ards-Klett Reagents. Klett Manufacturing Co., Inc. 179 East 87 Street, New York, New York SCIEDNCE, VOL. 143

Transcript of GLASS ABSORPTION CELLS made KLETT · CELLS made KLETT by SCIENTIFIC APPARATUS Klett-Summerson...

Page 1: GLASS ABSORPTION CELLS made KLETT · CELLS made KLETT by SCIENTIFIC APPARATUS Klett-Summerson Photoelectric Colorimeters-Colorimeters-Nephelometers-Fluorimeters-Bio-Colorimeters -Comparators-Glass

TIME YOUR TESTSIN SPLIT-SECONDS!

ALL PURPOSELABORATORYTIMERSMODELS AT

$25.00 to $31.00

You can set the large 8" dial for any desired time period withinan unusually wide range of 3600 possible settings, (ie., 1 sec.to 60 min., 1 min. to 60 hrs., etc.). At end of preset interval,alarm sounds and external load is automatically switched on oroff.

GRA-LAB MICRO TIMERS, Electric Stop Clocks, areavailable in 1 /10 sec. or 1 / 1000 min. graduationsfor split-second measurements of elapsed time inlaboratory or production operations. Price $39.50

WRITE FOR COMPLETE CATALOG!

DIMCO-GRAY COMPANY Di 203 E. Sixth St.AYTON 2, OHIO

AAAS

Symposiuzn Volume

SYSTEM OF UNITS-NATIONAL ANDINTERNATIONAL ASPECTS

Edited by Carl F. Kayan

"This book is a compilation of papers on thesubject of measurement standardization andshould contribute much to helping each of usreach a position regarding this problem."Journal of Engineering Education, Oct. 1962308 pages, 1959 ....................7$6.75AAAS members discount price .......$5.75

Order from

AMERICAN ASSOCIATION FOR THEADVANCEMENT OF SCIENCERoom 103 1515 Massachusetts Ave., NWWashington, D.C. 20005

714

GLASS ABSORPTIONCELLS made KLETT

by

SCIENTIFIC APPARATUSKlett-Summerson Photoelectric Colorimeters-Colorimeters - Nephelometers - Fluorimeters-Bio-Colorimeters - Comparators - Glass Stand-ards-Klett Reagents.

Klett Manufacturing Co., Inc.179 East 87 Street, New York, New York

SCIEDNCE, VOL. 143

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Ecologist, Ph.D., 7 years of postdoctoral researchexperience with temperate and tropical mammalpopulations in field and lab; desires teaching/research position. Box 312, SCIENCE. XForestry Scholar, foreign experience, married,age 30. Desires teaching/research in conserva-tion, policy, silviculture or watershed. TranslatesGerman. R6sum6. Box 311, SCIENCE. X

Lhison-Information Scientist, reads Japanese,Russian plus ten languages, Ph.D. (physics) nextspring, LL.B. MIEE, 10 years' experience elec-tronics, widely read in biology. Box 307,SCIENCE. 2/14

Ph.D. Ecologist, 44; training in geology, wildlife,botany; wide experience; popular and scientificpublications; Phi Beta Kappa, Sigma Xi; wantsto think, teach, write, do research in interestingenvironment. Lifetime interest in conservationecology and role of environment in genetics andvariation. Alfred Etter, Box 24, GlenwoodSprings, Colorado. X

(a) Ph.D. Geologist (botany, mineralogy minors),palynolgy research interests; interested in teach-ing, independent research. (b) Ph.D. AgriculturalChemistry and Soils; plant material biochemis-try; industrial, governmental, academic experi-ence; prefers teaching/research. (c) M.S. (1964)Microbiologist; microbial research interests; pre-fers research/teaching. (Please write for informa-tion regarding these and other scientists, seniorand junior, in all fields.) Science Division. TheMedical Bureau, Inc., Burneice Larson, Chair-man, 900 North Michigan Avenue, Chicago 11,Illinois. X

Physiologist-Zoologist, Ph.D. Interests in mam-malian, cell, endocrine physiology; radiobiology.College-university teaching, research. Experi-enced. Box 316, SCIENCE. X

Radiographic Expert-Scientific Photographer.Complete medical, industrial x-rays, new proc-essing, analysis. Microbiochemistry. Entire pho-tography: black-white, color, still, motion. Lab-oratory. Electron microscopy. Unusual scientificbackground, desires position. Box 313, SCIENCE.

X

CLINICAL-IMMUNOLOGIST. Position in newlycreated department of clinical immunochemistryin departmentalized research and service labora-tory in large general hospital. Applicant to havePh.D. or equivalent and will be head of depart-ment. Opportunity for development of depart-ment of immunochemistry with major opportuni-ties for research and pursuance of self-developedprojects. Complete facilities available and sup-plementary facilities to be encompassed. Gener-ous, open, salary. Write Robert C. Grauer, M.D.,Director, Singer Research Laboratory, AlleghenyGeneral Hospital, Pittsburgh 12, Pa. 2/14

MicrobiologistThe position will provide the creativescientist the opportunity to make contri-butions to the study & solution of re-search problems in the area of microbialinteractions and their effect on mam-malion tissues.Our candidate should be able to utilizea background of microbial chemistry toaccept challenges to develop his ownideas and techniques in the approach toproblems.Requires a recent Ph.D. or an M.S. inmicrobiology with 1-5 years of researchexperience.Prompt interviews can be arranged bysending your detailed resume in strictestconfidence to:

MR. A. J. BICZAKResearch & Development

CenterCOLGATE-PALMOLIVE CO.

IN River Road,New Brunswick, N. J.

An Equal Opportunity

14 FEBRUARY 1964

BIOLOGY EDITORfor Scientific Book Publisher

Ph.D. or other advanced training or ex-perience. Duties will consist of develop-ing ideas for advanced level monographsand treatises, contacting potential au-thors, maintaining close liaison withimportant academic and industrial re-search personnel. Should be willing totravel and enjoy frequent personal asso-ciation with members of the profession.

Box 305, SCIENCE

...... ........................

BIOLOGIST, B.S.Experience in cytology and histochemis-try desired. Mr. Miller, Research Depart-ment,

Saint Barnabas Medical Center685 High Street

Newark, New Jersey

RESEARCH BIOCHEMISTSupervise and assist in planning researchon enzyme systems in neoplasia at largegeneral hospital as part of research pro-gram. Also some teaching responsibilitytoward research oriented physicians in-cluding house staff. Requires ability to be

"creative and Ph.D. in chemistry. Salaryis open depending upon experience andqualifications. Send resume to

Personnel DepartmentHartford Hospital80 Seymour Street

Hartford, Connecticut

SR. PHARMACOLOGIST/PHYSIOLOGIST

Challenging opportunity for Ph.D. todirect and conduct basic and applied re-search studies in Neuropharmacology.Specialized training desirable but notessential. Please send resume includingsalary requirements to: Cyrus M. Green-berg, Ph.D., Director of Scientific Em-ployment, SMITH KLINE & FRENCH

LABORATORIES, 1532 SpringGarden Street, Philadelphia 1,Pa. An equal opportunity em-ployer.

MOUNT ALLISON UNIVERSITYAppointment IX Physical Chemistry

Applications are invited for a position in theDepartment of Chemistry. It is desirable thatthe successful candidate should take up dutieson or about 1 July 1964.The successful applicant will be required to

give a course in advanced Physical Chemistry, andin addition assume supervision of two laboratorycourses in Physical Chemistry. Some formal lec-tures will be necessary to provide a suitabletheoretical background for the laboratory work.

Applicants should have completed all the re-quirements for the Ph.D. degree. It may be pos-sible, in a few instances, to arrange for a person-al interview at the department's expense.

Applications should be forwarded to Prof. A.C. Cuthbertson, Department of Chemistry, Box133, Sackville, N. B., Canada.

111111111111111111.$j POSMONSOPEN

POSITIONS WANTED

Physical Scientists

Mathematicians

atORIINTRIGUINGOPPORTUNITIESFORINQUISITIVEMINDSThe steadily growing responsibili-ties of Operations Research Incor-porated continue to create newcareer positions for expeiencedmathematicians and physical scien-tists. We offer you an opportunityto work with scientists and engi-neers of other disciplines in pur-suing solutions to problems inoperational and systems analysis, inwar gaming, and in a sector ofmilitary programs encompassing anentire complex of sophisticated of-fensive and defensive weaponssystems.At ORI the accent is on thought.

We provide a stimulating scientificenvironment for work and the ex-change of ideas.We ask that you hold a B.S. or

advanced degree and at least 3-5years experience in applying thetechniques of operations research,mathematics, and theoretical phys-ics to a broad spectrum of difficultand complex problem areas. Fur-ther, we seek from you a back-ground of original thinking andqualitative reasoning in problemareas where detailed theory islacking.

Positions are at ORI's new head-quarters building in a residentialsuburb of Washington, D. C., af-fording you the choice of urban,suburban or rural living. For fur-ther information, please send yourresume to Mr. Carlton A. Robin-son, Professional Staffing.OPERATIONSRESEARCHINCORPORATED

-I

EXPERIMENTAL ENTOMOLOGISTPh.D., Assistant or Associate Professorship, Sept.1964, to expand teaching and graduate researchprogram with emphasis on insect ecology andphysiology. Salary appropriate to qualifications.Write to Loren D. Potter, Chairman, Departmentof Biology, University of New Mexico, Albu-querque, New Mexico.

I

I I

1400 Spring StreetSilver Spring, Maryland(Suburb of Washington, D. C.)An equal opportunity employer

715

POSIMONS OPEN

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POSITIONS OPEN I11111111H IIIDI POSITIONS OPEN 1HjIIjjIjIjjIII | iiiiiillHlEIIIV SHIPS IIIIIII lIIJICHEMISTRY DEPARTMENT with active re-search activities and extensive facilities welcomesqualified applicants for teaching and research as-sistantships. $2200-$3000 and tuition in all divi-sions of chemistry-analytical, biochemical, in-organic, organic, and physical. For further in-formation contact Henry Freiser, Head, Depart-ment of Chemistry, University of Arizona, Tucson.

2/14, 28; 3/14

(a) Ph.D. Biochemist/Physiologist; radiation ef-fects on vascular permeability; eastern medicalcenter; to $11,500. (b) B.S./M.S. Biochemist; im-munology interests; eastern pharmaceutical house;to $9000. (c) M.S. Clinical Chemist; mideasternhospital; to $8000. (d) M.S. Clinical Bacteriol-ogist; midwestern hospital. Faculty Appointmentts:(e) Ph.D. Physiologist/Biochemist; research, teach-ing; southern university. (f) Biologist, ecologyspecialty, recent Ph.D., small eastern college; to$8000. (g) Ph.D. Botanist, chemistry, physiologybackground; New England university; to $8700.(h) Physics, new eastern university; to $12.000.Histologist/Embryologist; New England univer-sity; to $7000. (j) Microbiologist, M.S. minimurm;mideastern junior college; around $6000. (k)Zoologist, general zoology, physiology; mideasternstate college. Please write to Science Division,The Medical Bureau, Inc., Burneice Larson,Chairman, 900 North Michigan Avenue, ChicagoI11. Illinois. X

RADIOBIOLOGIST- Ph.D. or M.D. - prefer re-search experience with mammals. Position indeveloping Research group of active Radio-therapy Department. Opportunity to developown program. Excellent facilities.BIOCHEMIST- Ph.D. - interest in radiobiologicalresearch problems. Position in developing re-search group in active radiotherapy depart-ment. Opportunity to develop own program.

Contact: F. G. Bloedorn, M.D.Head, Division of RadiotherapyUniversity of Maryland HospitalBaltimore 1, Maryland

INBIOCHEMIST IINFORMATION RESEARCH

Excellent opportunity for recent Ph.D.or experienced M.S. in Biochemistry orallied Biological field for established In-formation Research Group. Responsibili-ties incude compilation, correlation, criti-cal evaluation and skillful reporting ofinformation leading to the planning ofour Biomedical Research programs.

Applicant should possess growth poten-tial, creative leanings and experience inbiological research techniques.

Position is in our Corporate ResearchGroup, located in suburban Wilmington,offering a research environment, manycultural and professional advantages,free from commuting problems. For con-sideration, please send resume and sal-ary history to:

C. T. BRODIGAN

AT L A SChemical Industries, Inc.

Wilmington, Delaware 19899

An Equal Opportunity Employer

716

CLINICAL MICROBIOLOGIST-IMMUNOLO-GIST. Position, Ph.D. or equivalent, in depart-mentalized research and service laboratory inlarge general hospital. Minor supervisory dutiesin clinical immunology. Major opportunities forresearch. Complete facilities in all areas. Appli-cant will be head of expanding department encom-passing associated disciplines. Position imme-diately available. Adequate, open salary andfringe benefits. Write Robert C. Grauer, M.D.,Director. Singer Research Laboratory, AlleghenyGeneral Hospital, Pittsburgh 12, Pa.The Department of Zoology, University of

British Columbia wishes to entertain applicationsfor both current and future faculty openings incell and developmental biology. Rank and salarywill be commensurate with academic experience.

Curriculum vitae should be sent to Dr. C. V.Finnegan, Faculty Committee, Department ofZoology, University of British Columbia, Van-couver 8, Canada.

NATURAL SCIENCE DEPARTMENT of largemidwestern university announces vacancies forFall, 1964. These are teaching positions in natu-ral science in an undergraduate general educa-tion program. Especially desired are scientistsinterested in teaching undergraduates; scholarlyactivity in its broadest sense is encouraged. Va-cancies are at Instructor and Assistant Professorlevel, with salary range $6,000-$8,500, dependingon experience and training. Interested partiesshould write for further information enclosingcomplete summaries of their professional back-ground. All inquiries will be treated with theutmost confidence. An equal opportunity em-ployer. Box 317, SCIENCE.

PHYSICAL OCEANOGRAPHER. The MarineSciences Centre, McGill University, Montreal, andthe Department of Physics, require a PhysicalOceanographer at the Assistant Professor levelto teach both specialists and non-specialists.Excellent opportunities for research in the field,Arctic to Barbados. Salary according to quali-fications. Apply Chairman, Marine SciencesCentre.

PREDOCTORAL TRAINEESHIPS IN BIO-CHEMISTRY are available in a new and well-equipped department. Base stipend for first yeartrainees is $2400 plus tuition and dependencyallowance. Appointments are made on a 12-month basis and are renewable. Applicants mustbe U.S. citizens or must have applied for natu-ralization. For information and application forms,write: Chairman, Department of Biochemistry,Medical Center, University of Kentucky, Lex-ington.

iRIIIIIIIIIIIIIIIIIII FELLOWSHIPS ||||||||||||||||||Graduate Assistantships and Fellowships in Phar-maceutical Chemistry are available in the Facultyof Pharmacy. Areas of research include: naturalproducts, synthetic, analytical and radiochemistry.Stipends up to $3,600.00, a travel allowance isalso available. Address enquiries to:

Faculty of Pharmacy,University of Alberta,EDMONTON, Alberta, Canada.

RESEARCH FELLOWSHIPA postdoctoral research fellowship in parasi-

tology is available at the Ontario Research Foun-dation. The fellowship of $5500 is tenable for 1year although renewal for a second year will beconsidered. Send details of qualifications andreferences to Personnel Officer

ONTARIO RESEARCH FOUNDATION43 Queens Park Crescent

Toronto, Canada

Predoctoral and Postdoctoral Fellowships inMedical Physics. Opportunities are available todo graduate work in the basic medical sciencesincluding radiation biology, radiation physics,bioastronautics, and the clinical use of radio-isotopes. Fellowship support is offered for studyprograms leading to the M.S. and Ph.D. degreesin medical physics and also, for postdoctoralresearch. Stipends vary with -training and de-pendents. Write to Chairman, Department ofRadiology, Center for the Health Sciences,University of California, Los Angeles 24, Cali-fornia.

ONTARIO VETERINARY COLLEGE, (Uni.versity of Toronto), GUELPH, CANADA. Alimited number of fellowships of $3600 each willbe awarded for graduate veterinarians in pro-grams in any department of the College leadingto the Master of Veterinary Science. Full timeis permitted on the graduate study program.Applicants interested in enrolling in 1964 should

write now to the Chairman of the GraduateStudies Committee, Ontario Veterinary College,for brochure.

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SCIENCE, VOL. 143

MEDICAL WRITERPHARMACEUTICALS

Exciting opportunity to assist in a com-prehensive medical editorial program. Excel-lent long term potential as well as immedi-ate rewards in an expanding pharmaceuticalcompany located in suburban Princeton.N.J., area. Graduate work in basic sciencesdesirable. Thorough grounding in all aspectsof medical writing and editing essential.Familiarity with clinical research designs,statistical and data processing techniques,literature review skills and abstracting ex-perience will be considered important assets.

Write in ceonfidenee. Include detailed resume& salary requirements to Personnel Manager

Wallace Laboratories(Division of Carter Products, Inc.)

Cranbury New JerseyAn equal opportunity employer

I

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1919- 1964LaMotte Chemical

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It's no longer necessary to acceptphotomicrographs that are crisply infocus only in a small, pre-selectedarea of the field of view. The newAO Microstarg Microscope's uniqueinfinity-corrected optics provide avisual image that's amazingly flatover the entire field. This superiorimage quality means you now canmake photomicrographs that are flatand in focus from edge-to-edge andcorner-to-corner of the print.

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