If your research involves DNA-RNA,or DNA-DNA Hybridization studies, NBS has the answer. A UniversalMembrane Filtration Apparatus, equipped with reversible washingassembly and individual reservoirs, can now be employed for hybrid-ization studies as well as rapid and complete filtration and/or collec-tion of bacteria and precipitates; and protein-DNA-binding studies.To eliminate handling of individual reservoirs, a 10-cavity loadingblock can be quickly set in place for efficient filling and filtration.The entire battery of filters, clamped and sealed together, can beinverted at one time so that both sides of the 25 mm membranescan be repeatedly washed.

For complete information, ask for catalog DNAS/474

N1 B SNEW BRUNSWICK SCIENTIFIC CO., INC.1130 SOMERSET ST., NEW BRUNSWICK, N. J. 08903 2019846-4600

Circle No. 374 on Readers' Service Card

and

Clnical and Resarh AsecEdh.d by J.b.P..d.It3, m.d E*a..4C. S...,

Separationand

Depression

Edited i)).J oln Patl Scott

andEd^%ard Senays

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

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

AAA A ASS

Send orders to Department SD

AMERICAN ASSOCIATION for theADVANCEMENT of SCIENCE1515 Massachusetts Avenue, N.W.Washington, D. C. 20005

Why choose betweenhigh output voltage orhigh output currentpotentiostats?Wenking offers bothin the same instrument.

"Versatile" is the only way to describethe new Wenking Potentiostats. Both the newHigh Power Model (HP-72, 200W output) andStandard Model (ST-72, 75W output) providethe flexibility of higher output voltage (atmedium current) or higher output current (atmedium voltage) simply by adjusting a multi-pin connector at the back of the instrument.

Additional new Wenking instrumentsinclude three economical PCA-72 PotentialControl Amplifiers featuring 3 superimposinginputs and grounded output. The PCA's can beused in combination with auxiliary equipmentfor the most advanced potential controltechniques. There are also new laboratorymodels, "fast rise"' and high voltage models,scan generators, double pulse controlgenerators. a current/voltage integrator anda precision voltmeter.

For literature on these versatile newWenkings, just write: Wenking Division,Brinkmann Instruments, Cantiague Rd..Westbury, N.Y. 11 590. In Canada, write:Brinkmann Instruments (Canada) Ltd., 50Galaxy Blvd., Rexdale (Toronto), Ont.

A DM)iVt]ilCN OF

Potentijostatsr oRINKMANN

Circle No. 354 on Reciders' Servicfe Card 50326 APRIL 1974

The FwstWlo e RangdeiMicrotome-cryostat...Temperatures from-150C 10 -50Co..aFrozen Sectionsfrom 4Oy 101ts.The Harris LoTemp model WRCis two microtome-cryostats inone. A single unit that can doboth routine diagnostic pro-cedures and such sophisticatedresearch procedures as thinsection light microscopy, auto-radiography, fluorescence mi-croscopy and other histologicalprocedures, at a cost compar-able to presently availableroutine cryostats.The Harris model WRO is

compact... can be moved any-where it's needed. The coldchamber has extra room fortissue handling, storage orfreeze drying. Full opening topwith special access ports com-bines the features of a totallyclosed system with the easy ac-cessibility of open top models.

Available equipped with Jungor International EquipmentCorp. microtomes, or cryostatonly prepared for installation ofyour present l.E.C. microtome.Installed stereo zoom micro-scope also available.

For a full description of theHarris WRC and its wide rangeof additional features write orcall .. .

Harris Manufacturing Co., Inc.14 Republic RoadTreble Cove Industrial ParkNorth Billerica, Mass. 01862(617) 667-5116

Circle No. 368 on Readers' Service Card

BOOKS RECEIVED

(Continued from page 458)Drainage Basin Form and Process. A

Geomorphological Approach. K. J. Greg-ory and D. E. Walling. Halsted (Wiley),New York, 1974. x, 456 pp., illus. $18.95.The Earth Environment. John J. Fagan.

Prentice-Hall, Englewood Cliffs, N.J.,1974. xii, 244 pp., illus. Paper, $4.95.Electrodermal Activity in Psychological

Research. William F. Prokasy and DavidC. Raskin, Eds. Academic Press, NewYork, 1973. xii, 502 pp., illus. $29.

Electromagnetism. F. N. H. Robinson.Clarendon (Oxford University Press), NewYork, 1973. x, 110 pp., illus. Paper, $4.95.Oxford Physics Series.

Electronic and Structural Properties ofAmorphous Sediiconductors. Proceedingsof a seminar, Aberdeen, Scotland, July1972. P. G. Le Comber and J. Mort, Eds.Academic Press, New York, 1973. xvi,630 pp., illus. $35.Environment and Birth Defects. James

G. Wilson. Academic Press, New York,1973. xiv, 306 pp., illus. $19. Environ-mental Sciences Series.A Guide to Natural Cosmetics. Connie

Krochmal. Quadrangle, New York, 1973.x, 228 pp., illus. $8.95.A Guide to the Medicinal Plants of

the United States. Arnold and ConnieKrochmal. Quadrangle, New York, 1973.viii, 260 pp., illus. $9.95.Human Behavior in the Social Environ-

ment. A Social Systems Approach. RalphE. Anderson and Irl E. Carter. Aldine,Chicago, 1974. viii, 184 pp., illus. $8.50.

Immunology. The Many-Edged Sword.Harold M. Schmeck, Jr., Braziller, NewYork, 1974. 144 pp. Cloth, $6.95; paper,$2.95.

Implications of Continental Drift to theEarth Sciences. Vol. 2. Proceedings of asymposium, Newcastle upon Tyne, Eng-land, April 1972. D. H. Tarling and S. K.Runcorn, Eds. Academic Press, New York,1973. xvi, pp. 625-1184, illus. $36.50.

Initial Reports of the Deep Sea Drill-ing Project. Joint Oceanographic Institu-tions for Deep Earth Sampling (JOIDES).Vol. 15, Dec. 1970-Feb. 1971. Preparedfor the National Science Foundation bythe Scripps Institution of Oceanography,La Jolla, Calif., 1973. (available from theSuperintendent of Documents, Washington,D.C.). xxii, 1138 pp., illus. + charts.$17.65.

Integrated Theory of Finite ElementMethods. John Robinson. Wiley-Intersci-ence, New York, 1974. xxii, 428 pp., illus.$29.50.

Length of Stay in PAS Hospital, UnitedStates, 1972. Commission on Professionaland Hospital Activities, Ann Arbor, Mich.,1973. Ixii, 190 pp., illus. Paper, $8.50.Length of Stay in PAS Hospitals, United

States, Regional, 1972. Commission onProfessional and Hospital Activities, AnnArbor, Mich., 1973. lxxxviii, 662 pp., illus.Paper, $1 1.

Life-Span Developmental Psychology.Personality and Socialization. Proceedingsof a conference, Morgantown, W.Va.,1972. Paul B. Baltes and K. WarnerSchaie, Eds. Academic Press, New York,1973. xvi, 452 pp., illus. $14.50.

EM Reagents"

If Plastic-backedT-LC layersare yourPrefrence,you'al l preferEM'sA major difference between EMpre-coated TLC plates andothers is that EM is an asso-ciate of E. Merck, Darmstadt,Germany, a chemical company,and we make our own specialTLC formulations.

Our special formulations yieldplastic-backed TLC layerswhich are tough and stable.They possess advantages forstorage, packaging and ship-ping which do not alterchromatographic properties.But most important, if you nowuse EM's glass plates, and mosteveryone does, you do not haveto change your system. You cantransfer techniques betweenour different backings to pickthe most suitable for anyseparation.

Specify EM pre-coated TLCproducts. Available fromselected distributors throughoutthe country.

EM pre-coatedTLC productsEM Laboratories, Inc.

associate of E. Merck, Darmstadt, Germany500 Executive BoulevardElmsford, New York 10523

Phone 914/592-4660Circle No. 365 on Readers' Service Card

SCIENCE, VOL. 184

Madness and the Brain. Solomon H.Snyder. McGraw-Hill, New York, 1974.x, 296 pp., illuts. $8.95.

Le Malpas Rockshelter. A Study of LatePaleolithic Technology in Its Environ-mental Setting. Anta Montet-White. De-partment of Anthropology, University ofKansas, Law.rence, 1973. viii, 136 pp.,illus Paper, $3.40.Nylon Plastics. Melvin 1. Kohan, Ed.

Wiley-lnterscience, New York, 1973. xviii,684 pp., illus. $34.95. Society of Plas-tics Engineers Monographs.

Obedience to Authority. An Experi-mental View. Stanley MNilgriam. Harper,and Row, New York, 1974. xx, 224 pp.,ills. $ 10.

Organic Chenmistry of Life. Freeman.San Francisco, 1973. xii, 452 pp., illus.Cloth, $12; paper, $6.95. Reprinted fromSc ieiltific A mer7ricaIi.

Personal Relationships and PersonalConstrtucts. A Study of Friendship Forma-tion. Steven W. Duck. Wiley, New York,1974. xii, 170 pp. $12.

Physical Acoustics. Principles andNMethods. Vol. 10. Warren P. Mason andR. N. Thul-ston, Eds. Academic Press,New York, 1973. xii, 404 pp., illus. $39.50.

Recent Mathematical Developments inControl. Proceedings of a conference,Somerset, England, Sept. 1972. D. J. Bell,Ed. Academic Press, New York, 1973.xiv, 446 pp., illus. $30.25.The Reception of Copernicus' Heliocen-

tric Theory. Proceedings of a symposium,ToruLn, Poland, 1973. Jerzy Dobrzycki,Ed.Reidel, Boston, 1973. 368 pp., illus. +plates. $24.

Statistics. An Intuitive Approach. GeorgeH. Weinber, and John A. Schumaker.B3rooks/Cole, Monter-ey, Calif., ed. 3,1974. xviii, 392 pp., illus. $9.95.

Statistics for Biologists. R. C. Camp-bell. Cambridge University Press, NewYork, ed. 2, 1974. xiv, 386 pp., ilkLIs.Cloth, $15.50; paper, $5.95.

Stress Concenitration Factors. Chartsand Relations Useful in Making StrengthCalcuilations for Machine Parts and Struc-tural Elements. R. E. Peterson. Wiley-In-tei-science, New York, 1974. xvi, 318 pp.,illus. $18.95.Thermiial Conditions in Freezing Lakes

and Rivers. A. A. Pivovairov. Translatedfrom the RLrssian edition (Moscow, 1972)by E. Vilim. Halsted (Wiley), New York,and Israel Program for Scientific Trans-lations, JerLusalem, 1973. vi, 136 pp., illus.$ 19.75.

Topics in Complex Function Theory.Vol. 3, Abelian Functions and ModularFtunctions of Several Variiables. C. L.Siegel. Translated fr-om the German (Got-tiri-en, Germnazny) by E. Gottschling aindNI. Fretkotf. Wiley-Interscience, NewYork. 1973. x, 244 pp., illus. $17.50.

Trade, Stability, aind Macroeconomics.1F,says in Honor of Lloyd A. Metzler.Gcoree Horwsich and PaLrl A. Samuelson,}his. Academic Press, New York, 1974.xxiii, 558 pp., illus. $19.50. EconomicVrheory alnd Mathematical Economics.Woody Plants of the North Central

Plalins. H. A. Stephens. University Pressof Kansas, I a rence, 1973. xxx, 530 pp.,illu-s. $20.2(6 APRIL 1974

Plar t sfi..0::AX

o \ - iN,N

with Nalgene Safety ShieldsYou' ll get better protectionagainst flying glass, dangerouschemicals and other laboratoryhazards with Nalgene SafetyShields. Combining 3/16" LEXAN*polycarbonate, the toughest of allthermoplastics, with carefully en-gineered design has resulted inlaboratory safety barriers that arecrystal-clear and distortion-free.

Polycarbonate, with its superiorimpact resistance and high ten-sile strength, is the best transpar-ent shield material available to-day. The parabolic curve formgives side as well as front protec-tion. Vertical sides provide maxi-mum safety along the full heightof the shield. A heavy 3/4 inch-thick epoxy-coated steel baseprojects beyond the front of theshield to provide a low center ofgravity and resistance to tipping.The projecting base also servesas a convenient carrying handle.*Registered trademark of General Electric Co.

Available in three sizes to meetmost laboratory requirements.

The largest (Cat. No. 6350-3636)is 36 inches high, with a totalshield surface of 1295 sq. in. Theintermediate size shield (Cat. No.6350-3024) is 30 inches high pro-viding 734 sq. in. of surface. Thesmall shield (Cat. No. 6350-1524)is 15 inches high with 367 sq. in.of surface.

Order from your Lab SupplyDealer. For complete details,write Dept. 4116D, Nalge Com-pany, P.O. Box 365, Rochester,New York 14602.

NARLGESYBRON CORPORATION

Nalgene' Labware ... the safe unbreakables-preferred by professionals.

i

5055Circle No. 351 on Reader-,' Sf-rvice Carci

111414 4 \ I C A)

111 141-,I il, 11 n.4 1

1iI t1

Bilogist 1 54

colliIniil (ctolonr%ist P ) 1

IIo

IF 4I

LrIri er XI.c 1r.'l1jO,I II I

II

ic.ovati 11.inFne1 ic OrgaiF C

I

r 1 C I4I)

d( IFI

Pr C' tillf 1114N 4M o ik1h l-t 0 ]'A I1 'I 14 tl

Dav414d C1h1111 51 Adm pS W

11

.- CSB S 'III 1

PP T N IANTE'1D

1'

(SITI P1, r1 I .

COY II ,' A

FA''IA 2

Prol)1t4.4or 1'. A. 1L11)111 C2luiiririr 1)4r1i1r .in t- pi AXjpl1rc(Ii 'XIi'IJ4IIiC .111(1 II IC2illcui r III,-I ci IIi sII.f.irr.t l ( rlt I'l 11., S~ll I 1)I(,,-

I NI 1 Rz -I IX 0! X I RzI 00M)TP XR I Nil. N I 0! 1101 O(

sisJl XN I PROFESS'%OR IN 1B01OLOGY.I

Ili I.I N

r. t ' I NNoro Chirman1 I 1cafmn 4)

It 4)i1o .- It niicrsifI ot 1' IN11Crlooio NN iterdoon On-;irll (P II.d.iac N21. YC 1 .

B()\~ 24. XX 41tCrm11d BIldiiI1i I ii' .11 o

e rmront. lttrrlirrTtoul. X crinront 0194FF] 1,14I~i", 1.

S~(i

.111I I

V11 I

I'll!"R I

11 IO1 I

I.

FIII.1 I( I

7hcrrr't P! i. ' ' NIi II C IIII'I4 11I1 1II1J

F (l 4 I 1 I

cCIII c

t41 1 4 LI 'I 14I II

1( I N I s I k t IIII

Dcp rrlrrrrrt t of CIirr.-I 14lltholog)4 34010 Noi-liiI Iro:d Strcr'l, PhiladelphIia)4. P1.r. 19140.

ks'is I AN I PROJFF SOR 01 111A0IO1,O(.

IIII)II'SillF C

S 1 P1 1 iI 4

1 1 I 1I 114114I

.III

41

I d S I,J . 11I1I ' '' D)r. B. I irin .

c ri . 'lIltiIe jirr't'r '.i t t NCxN. 'ork -.it itorrI r'o'oli -n s1ronlN lirook.. N .X'. 117911. 114

PersonnelPacement

9i

q,j'a:~~i

114d Ii '* 4 41 '1 I I 11'I i I

14 11 Dr. Ni. I'. I I- l\1rr% Charirrina i.Il)cpartmrcrii I ,ii 11rorinctlta111 rs icrock'. IN lIwc,%2(1144C kcs-Ilarre. P-r. 1870 3 /,(I

xslssI \N D)11. C2 I OR 11101AO(GI XiOC %N1 A III

C 1411

1x 1!, 1 C F

S. I' I IPROF USO41 II fo4 l I ~II

III!!

411 I

X~rr', I\NIPROJ1 'rr()

Ircl, N., 370 on Poodr, Sr

!: s oill'A k 11ji lj. l'osl I IoNkl. . illillil h

|l|ll|lli|llllllllPOSITIONS OPEN l||||g|||||||

ASSOCIATE TO FULL PROFESSOR. DE-PARiMENT' OF HUMAN DEVELOPMENTAND FAAMILY STUDIES. Iliterdiscipliniary de-partilment of psychologists and sociologists needsscioi'r faculty member in area of deviant or,ibnormalaI lesve1lopnient: i)50 pr cenlt tchlcll' .primarily graduiate level, 50) percent research.Reqtuircmneits: (i) stronig record in baisic or ap-plil(I s;1t-ich tociLsSed Oil cOUillititve or Sociail-cimotion,ill adjtistment problems within typicailsettiris; for cxample, families, schiools, preschoolprograms, or commuinity based facilities for dliag-tlioss anid remediation of developmental problems:(ii tcaching rceord indicative of ability to in-solve stidcents in research on problenms of atypi-catl aid desiant development. Scnd cuirrictIluImvitaie and suIpporting materials to Jolin Doris,I)epartment of Hunijan Development and FamilyStudies, Cornell University, Ithaca, New York14850.

BlOM1EDICAL MASS SPECTROMETRISTAvailable July 1974

PI.D. in relevatit arca. Responsibilities iticilide(pcritioll of GC-MNS (qtiadrtipole, E.I-CI, com-pittcr), assisting, tisers, itidepenctenit rcsearcii iinetitroscience applicationis of GC-MS. Acaidcmic,ltllroil till *tlt ,t tush tlt is till prof'cssor icsci.SecidI c'surIi, transcripts. ptiblicatiotis. and lettersOt rcco"immieidation to Dr. Frederick Petty, StoutNeuiroscience Laboratory, Thle University ofTennessee Medical Units, 800 NMadison Aveniue,M1emp)his, lennessee 38163.

BIOSTATISTICIAN

With programilminig experience. Ph.D. desirable.Will wov-k ini field of cancer epidemiology. Factul-ty .ippointulentn Yaile University, Departmcnt ofEpiclemiology atid I'uiblic Health. Fuirthier ilfor-r11.1tioll t'roiii J. N ister Nleigs. NI.D)., Room 407,60 College St., New Haven, Conn. 06510./14 e(liual opportuinitY emiploY'er.

THE UNIVERSITY OF SYDNEY(AUSTRALIA)

CHAIR OF GEOLOGY

Applicatiorns are invited for a Chair of Geol-ogy stitlch becamc vaictlt on the retiremerit ofProfcssor C. E. MNirshall. The preselit head ofthe D)cpartmnent of Geology and Geophvsics isProfessor CG. NI. Philip whose main field ofItilicicst is pl,lic'OltOlogy tilcd str.ttrapliv. Cinch-clItes sLlitzibly qualified and expericnced in anyotlhcr hield of geology, including geoplhysics andcieninlecring geology, will be considered.

Siltrs: S19ti10) (AListralti.in ) per iiinitllll i.S of14 \1calli 1974 Si (U.S.) -il0.67 AItst.), £(St.) S 1.57 (AList.) ]

For inforinationi contatct the Registrar, Univer-sity ot Sydney, N.S.W. 2006, Australia, withwlhom applic.tiotis close on 31 May 1974.

MllCHIGAN STATE UNIVERSITY,EAST LANSING, MICHIGAN

Chlairman and Professor of the lDepartment ofPatlhology. The departmcnt is the focal point iinthce itliversity for research and teaclhinig relatedto fLnlldamcntail and applied pathology and isrcsilionsiblhe 1O tile colcges ottHlitimttil sleclicitlC,O)steopttiltlic Mediciiec, and Vcterinr;rs Meclicliie.Tile suLccessftil candidate will require an excep-toti.il record in research, teaching. and relevantautiiiinistraltive experictlce. The conditions ofappointnllent are negotiable. Michican State Uni-i Nitilt is an equial opportiinitY eoiplo er. Con-tict: Norbert B. Enzer, M.D., A222 East FeeHall, Mliclhigan State University, East Lansing,Michigan 48824.

CHEMICAL ENGINEER1O DO TECHNOLOGY ASSESSMENT

The SCIENCE AND PUBLIC POLICY 1'RO-GRAM aild the COLLEGE OF ENGINEERINGof tile UNIVERSITY OF OKLAHOMA aresecktlig ai chlemical engineer for a 15-monthsvisitinig positicn in an interdisciplinary technologyzissessnlent team. The position wocild be availablefrouti I Jtune 1974 to 31 JLuly 1975. The positionis .i joint teachitlg research appointment. Qtialifi-c,itioils ire a backgrotind in tllermodynamics andthe ability to work as part of a team composedof na.ituiral scienitists, enigineers. andl social scien-tists. Rink aind salary wouLld be commensLiratewitlh qLuttifications.

T/ue Unit ersitto is an e(lqal opporttnitsi emi-plotJ er; it omieii and otembersaof iiinoritr grou,psare enici)iuraged to apply. Please send a copy ofyouLr cuLrricuLlum vitae, letters from three pro-fessionals, and reprints or copies of any papersyoLIdeem appropriate to Don E. Kash, Directar,Scienice and Public Policy Program, Universityof Oklahoma, 601 Elm Avenue, Room 432,Norman, Oklahoma 73069.

26 APRIL 1974

ASSISTANT PROFESSOR OF PHYSIOLOGY/ELECTRON NIICROSCOI'IST

Applictotions ire ins ited for a ness positioil ilnthe D)epatrtmcnut cf Pls siology for wsork Olii thetiltrastruictire of ioni tr.anisporting struicttires andof thie tiersvois sy5stem. Ktnossledge 1otl1 in con-ventonial atnd specialized techiriqtues in electronmilitroscoipy is cssentaltil xspcricncc svith cpithcliealstrticltitres (kicines tLbutile. skiti, tblacldcer) -s sellis illttiscle. priphier.lt. .tnid ceiltral nlereolIs S>,c111Sis dcesirihbl. (Opporiltilitiis .ir1 iavailabtlefor bothcolllhoritive anlcl inidepLndenit resecrch itid for,tracutaitc ,tntrcict1CC1C StLtenC'[t tcacilitl(.Please seild cllipletc CLirricLtitm vitie iiC IcclItiedi

iltblic,atiotis tnid the nl.nillcs .ttid addrcsses of tlhrceicicict'ices to:

Chairman, Electron Nlicroscopist Search CommitteeDepartmenit of Physiology

Yale Uniiversity School of Mledicinie333 Cedar Street-SHNI B-106Ness-vHaen, Connecticut 06510

Appli ltiouis fr(tiii w omlit ui itid ineinb)er ofmitioritY ,i,rolips aIte svtcoote.

IIIOLOGISTSabbiticil leive replacen1ett for the 1974-75tcxiciemic yc.r to teachl cotirses ini mticrobiology,littilln.in iantotlly and phy siology and priilciplesof bioloiy. I'l.D. plreferred and tile atppointmneitiVill ile it the itistrtictor or assistant professorlevel. Scenl ctit-rictiltim vitae ancd arrange to havesetit threc letters of recommencdition to: Dr. J.W. Ed-tvards, Professor and Chairman, Depart-ment of Biology, Salem College, Winston-Salem,N.C. 27108.

li1i t1(1iiol O)ppoit mitv At iriitativi ActionEiploycer

CHAIRPERSONBIOCHEMISTRY DEPARTMENT

Applicatiotis :tnid tiominatiotlis are sought fortilc 11oitii l1 ol Ch lilpc Ittl)soniiDtilicrt t oifBiochemistry, I-he Uniiversity of Texas HealthScictice C'eilter at Sail Anltonio. QLialificationsitCIltide cvidltice of resealrch, teaching atid ad-iiiinistrative experitelce. Letters of itiqLtiry, appli-cationis ,tl1d iloitulitzitions sIlotIld be directed tc:Dr. Arthur H. Briggs, Departmient of Pharma-cology, TIhe University of Tlexas Healtlh ScienceCeniter at San Antonio, 7703 Floyd Curl Drise,San Anitoniio. 1exas 78284. Appliuctions shou1ldhe aiccolmlptanied bv a CLit ricultinit vitae and bythe n,imes oI it lcast thlicc petrsons fhio111 wlionilettei-s oh' i-efchcnce catn be obtaiined. An EquialOpportuiityi, Affirmative Action ELmployer.

DEAN. COLLEGE OFSCIENCE AND MATHEMATICS

Positioti available for Deaii of Scielace anidMlatlicuattics. SciccessftIl candidate is expectcdtim .ISSttiMe lcadership of an uctive college in a1,utd gi alt in1stututuoti. hlie collegc is clilposedof the dcpartnieuits of bioctlietitstry, botiniys, clieni-istry, geology, mathemtL.tics, physics, polymcrs,uiid coatitigs, psychology, andl zoology. Caniici-daites Must have a PhiD., an establishied re-scirch rcpuitatioti itt its or her field. ttlic soitleacademnic .achiuitnistrative experienlce. Positioni mayhe filled as t Irls zis Septemuiber 1974 ti are uilliiual op/ull iiuit7 emp/loyir. Coltt ast Chairmani,Dean Search Committee, College of Science andMathenmatics, North Dakota State Unisersity,Fargo, North Dakota 58102.

DIRECTOR OF DATA PROCESSINGThe University of MassachiLisetts Medical Centierconsisting of a complete medical schlool anid .itcachlitti hiospit.l to Octeni til 197i 's seitchllilgfor a Director of Data Proccssitig. The DirectorshouIld be qtiallfied to make decisions on staffutind hardware reqclircd to serve the dita process-ing needs of the facuIlty, stafh, and adiiniistraticonof the Medical Center, iticluding cotiuplete nledti-c;ll recorchs, buusitless services. atid collaboirativeaind/or servicc relatiotishiips with facuiltv researchctorts. Titi Medical C ettter is an affirmntatiu eactiiu eitcoluooter. P'leaIse setid rcomes or CUti -ricLilum vitae to Chairman, Data ProcessingSearch Conmmittee, Box 355, University of Nlassa-chusetts Medical Schiool, 55 Lake Avenue, North,Worcester, Mlassachiusetts 01605.

DIRECTOR AND DEPUTY DIRECTOR OFENERGY RESEARCH: Colorado Scllool ofMines seeks qtuitlified applicants to lead the newstate Colorado Energy Research Instittite. Theseseniior positions reqciire demonstrated broadtcchtlical and administrative backgrounds in di-rect management of R & D related to the energyfield, preferably in natuiral resoLirces areas. Ph.D.or equlivalent in science or engineering is re-quired. Send letter of interest and resume to Dr.J. H. Gary, Vice President for Academic Affairs,Colorado School of Mines, Golden, Colo. 80401by 30 April 1974. Atn Equial Opportunity-Affir-iliati Ie A ctiotI Eiplotyer.

CLINICAL CHEMISTM.S. or equtivalent required for position ofstipervisor in a rapidly expanding endocrineassay laboratory. Experience in radioimmuino-assay and knowledge of computer programmingis tiecessary. Setud resum6 to

Dr. D. McEvoyThe Endocrine Center

200 University Circle Research Center11001 Cedar Avenue

Cleveland, Ohio 44106

CSIRODIVISION OF MECHANICAL ENGINEERING

HIGHETT, VICTORIAAPPOINTMENT OF CHIEF OF DIVISIONCSIRO has a broad charter for research into

primary and secondary indListry areas. TheOganizaition has approximately 6500 employees,2100) of wvhom are research and professionalscientists, located in Divisions and Sectionsthrouglicihot Australia.GENERAL: Applications are invited from sci-

cultists and cngineers who have an establishedrecord of personal research achievement andle.idershiip interested in the position of Chief,Divisioli of Meclhanical Engineering. The vacancylhas hecti created following the appointment ofMr. R. N. Morse as director of the CSIROSolir ninergy Sttidies Unit. The Division, whichis locited at Highett approximately 12 milesfrom thic city of N\elboLirne, has a total staff ofapproxmatill,lly I00(), Inclutding 42 professionlastalff, m.inly engineers.DUTIES: The Chief of the Division is respon-sible to the Executive for the condtLct and di-rectioui of the research activitics, for the generaladmitnistration and for the control of fuindsavailable to it. A Chief is expected to makerecommenditions to thue Executive on the fuitLireorienttation of the research programmes. Allearly task for the ness Chief will be a reviewof the Division's presetlt work and subseqLientrecommenldaitions to the Executtive concernitigfLitLire programme oriciutatioti. The Execuitiveexpects thic appoiiitee to cotitribuite to the de-selopnment of .i close rclationship between thelDiv'suoiis of Mechanical Engineering atid Btlild-itug Research, the interests of which zire com-phenlctle.nry. The Division of Builditig Researchis SitUamtcd oti tIne sanie site.The work of thle Division at present falls

broadly into a studiy of the processes iiivolvitigl;lss aiutid heat tralnlsfer and the applicattion oflie restults of these stuLdiCs to the improvsementof the qlalhity of lifc, eithcr directly throiighidiviiolntllmentalh control or indirectly by the re-pl.iccnilciit of processes which are hiarnifuil to thecuis irounment. Ctirretit programmes relate to: (i)Uitilizationi oh solaur energy, particLilarly for lowteniperature application such as water heating:ii) coiitrollcd etlvirolimetlt engtineerinig, with em-

ph11s,i ott rcsearch lto ecoolomic methods ofcomfort coolinig; (iii) storcd agricLIltuiral prodtuctsemgicecritni. aiiicl partictilarly a1 stuicly of theC usecf plivsic.il illetliods of iilsect control in grainiinlvudvinig cooling alid/or drying; (iv) agricultuiralengineering, especially rcsearcl onl the applica-tiorli of i(grictlutlral chemicals to crops; and (v)irudtistrial aerodynamics, pritilcipally in relationto noise reduLction and mine ventilation.SALARY AND TENURE: Salary for the posi-

tion ssili iiot be less than $22,875 per annum.The teititre of tlel position is sLibject to negotia-tioti. The possibility of cither a fixed term (ofthe order of 7 years) or indefinite appoint-ment cOUtld be discuissed with the successful ap-plicant. In either event, stiperannuation privilegeswouild be available.FURTHER INFORMATION: A member of

huie CSIRO Exectitive, Mr. V. D. Burgmann,will be visiting Nortlh Atrierica atid the United

Kitigdom ill May 1974 and will be available fordiscu,ssiotis concerning the appointment withapplicants and otlier interested parties. Thoseintlrercdct in discLissing the appointment shotildconitact either the Chief Scientific Liaison Officer,Australian Scientific Liaison Office, 64 Kingsway,London, WC2B 6BD, or the Counsellor (Scien-tific), Fmbassy of Australia, 1601 MlassachusettsAvenue, NW, Washington, D.C. 20036. It maybe possible to arrange stich discuissions at atiLiniber of points in the United Kingdom andthe Utiitcd States. Scientists interested in dis-cLissing the appointmetit slhould ensuire that theappropriate overseas office is conltacted iii ampletinic to enable suitable arrangements to be made.

FLirther information on the Division's activitiescani be obtained by writing to The Secretary(Administration), CSIRO, P.O. Box 225, Dickson,A.C.Tf. 2602. Australia.APPLICATIONS: Applications stating full

personal anid professional details, the names ofat least two referees, and qclotitig referencenumber 430/329 slotild reach the undersigned by14 Juine 1974.

The Secretary (Administration)CSIRO

P.O. Box 225Dickson, A.C.T. 2602

AUSTRALIA

507

.........I.......................POSITIONS OPEN POSI'HONS OPEN

* ll*lllljDl! POSITIONS OPEN 1IDItIII POSITIONS OPEN 11II 1111I1I I |iiHIIIIIIIIIiiiiiiiiiiiPOSITIONS OPEN l|||lll8llllllslwlWl IllllllWlllllWw

UNIVERSITY OF ILLINOISApplications are invited for faculty positions in

the following areas for fall 1974:l) Clay Science2) Engineering Geology or Engineering Geo-

physics3) Marine GeologyA senior person with a prominent research

record and industrial experience will be givenpreference for the position in engineering geology.Rank open, but established researchers generallypreferred for all positions. Salary dependent uponqualifications. Send resume to F. A. Donath,Head, Department of Geology, University ofIllinois, Urbana, Il. 61801.The University of Illinois is an affirmative

action-equal opportunity employer and encouiragesapplications from members of minority grouips andwomen.

FACULTY POSITIONSCommunity Health Planner; Assistant Professor ofGeology; Assistant Professor of Sociology-Sociolo-gist; Assistant Professor of Sociology-Social WorkSpecialist; Instructor or Assistant Professor ofPsychology. Write for details:

Dean John LinnellCollege of Arts and SciencesGrand Valley State CollegesAllendale, Michigan 49401

An equal opportunity employer.

FACULTY POSITIONSApplications are invited from persons holding

Ph.D. and/or M.D. degrees to fill four teachingpositions with opportunity for research.

Medical Laboratory Science:1) Hematology2) Clinical or Pathogenic Microbiology

Applications should be ASCP registered or elig-ible. Administrative experience is desirable.

Physiology:3) Respiratory Physiologist

Applicaants must have or be willing to obtainARIT certificationr

4) General PhysiologistSend curriculum vitae, any available reprints,

and three letters of reference to: James J. Gozzo,Ph.D., Chairman, Search Committee, College ofPharmacy and Allied Health Professions, RobinsonHall Room 201, Northeastern University, 360Huntington Avenue, Boston, Massachusetts 02115.Northeasterni University is an equal opportunity!affirmative action employer.

KUTZTOWN STATE COLLEGEKUTZTOWN, PENNSYLVANIA

Geologist, full-time, permanent position for aPh.D. with at least 4 or 5 years of teaching ex-perience and the capability of teaching courses inpaleontology, stratigraphy, sedimentation andoceanography. Maximum teaching load 12 credithours, or the equivalent of three laboratory coursesper semester. Rank and salary open. An equalopportunity employer. Apply to Dr. R. F. Kaiser,Chairman, Department of Geography and Geology,Kutztown State College, Kutztown, Pennsylvania19530.

NEUROANATOMY AND PATHOLOGYUniversity of California School of Medicine

seeks a candidate at a level equivalent to anAssistant Professor to study the morphology andfunction of the innervation of vascular tissue inhealth and disease. Skills should include fluores-cence histochemistry, autoradiography, in vitrophysiological and pharmacological procedures, theuse of radioisotopes and operative animal sur-gery. Training and knowledge in the neural sci-ences including neuropathology is necessary. Sendcurriculum vitae to Chairman, Screening Com-mittee, Department of Pharmacology, Universityof California School of Medicine, Los Angeles,California 90024.

Candidates meeting above qualifications areurged to apply irrespective of race, sex or ethnicorigin.

508

ENVIRONMENTAL SCIENCESPostdoctoral appointments and also staffpositions at the Ph.D. and B.S. levels areavailable in ongoing research programsrelated to the measurement and assess-ment of the environmental impact of theutilization of nuclear and fossil fuelsin the Great Lakes Region. Areas of in-terest include limnology of the GreatLakes, stream ecology, terrestrial ecol-ogy and soil science, and meteorology.Send resume to: Ronald A. Johns, Pro-fessional Placement Department, ArgonneNational Laboratory, 9700 South CassAve., Argonne, Ill. 60439.An equal opportunity employer M/F

MARINE FISHERIES ADMINISTRATORMarine Scientist with specialty in fisheries as-pect of marine science needed. Leading coastaland estuarine research institution seeks experi-enced Ph.D. with competence in administrationto fill permanent position as Head of an Ichthy-ology (Finfisheries) Department. Will be respon-sible for research and academic programmingwithin major department of an environmentallyoriented, public-supported, nonprofit research in-stitute with advisory and educational responsibili-ties. Position supported by in-house funds. Per-sonal research encouraged. Faculty appointmentinvolved. Salary dependent upon experience andqualifications in range from $17,900 to $22,400.Salary scale increases pending. If interested,please reply with appropriate, complete and re-cent resume to Box 217, SCIENCE. Names ofthree persons who may be contacted regardingyour candidacy should be included.

HEAD, DIVISION OF PLASTIC SURGERYIN THE DEPARTMENT OF SURGERY

University of California, San DiegoQualifications include: (i) substantial experience

and a high level of skill in clinical plastic sur-gery and patient care; (ii) substantial experienceand a high level of skill in teaching medicalstudents, interns and residents; (iii) experienceand a high level of accomplishment in scientificresearch; (iv) experience and ability in administra-tion within an academic setting.Send curriculum vitae, bibliography, and three

letters of reference along with first inquiry to:Marshall J. Orloff, MD.Chairman, Department of SurgeryUniversity Hospital225 W. Dickinson StreetSan Diego, Califomia 92103

An Equal Opportunity/Affirmative ActionEmployer

------------------------- ..................................

GEOPHYSICAL FLUID DYNAMICISTResearch Scientist (Ph.D.) in geophysics, appliedmath, or fluid dynamics to join an on-going re-search program in the dynamics of ocean-tides.Research experience in this area of research pre-ferred. Please send r6sum6 to:

Dr. John T. F. KuoLamont-Doherty Geological Observatory

Palisades, New York 10964

An Equal Opportunity Employer

INSTRUCTOR or ASSISTANT PROFESSORPosition available in the Department of Psychi-atry, University of Michigan Medical School.Candidate is to work on ward devoted to specialstudies and clinical research. Must be capable ofproviding administrative and clinical supervisionof all treatment modalities. Must have demon-strated teaching and research skills. Should beBoard eligible. Send resume to Box 214, SCI-ENCE. A Nondiscriminatory Affirmative ActionEmployer.

INSTRUCTOR or ASSISTANT PROFESSORPosition available in the Department of Psychi-atry, University of Michigan Medical School.Candidate is to participate in psychosomatic andconsultation program of the Department. Musthave demonstrated teaching and research skills.Must be Board eligible or Boarded in Psychiatry.Additional training in other medical specialtiesdesirable but not essential. Send resume to Box215, SCIENCE. A Nondiscriminatory AffirmativeAction Employer.

INSTRUCTOR or ASSISTANT PROFESSORPosition available in the Department of Psychi-atry, University of Michigan Medical School.Candidate is to take leadership role in develop-ing and coordinating Department's quality con-trol, peer review and program evaluation. Demon-strated teaching and research skills essential.Should be Board eligible or Boarded in Psychi-atry. Send r6sum6 to Box 216, SCIENCE. ANondiscriminatory Affirmative Action Employer.

IONOSPHERIC. MAGNETOSPHERIC TEACH-ING RESEARCH faculty post, September 1974.Ph.D. required and should have postdoctoralexperience. Level of appointment open, dependingupon qualifications. Send resume and professionalreferences to

H. Carlin, DirectorSchool of Electrical Engineering

Cornell UniversityIthaca, N.Y. 14850

An Equal Opportunity/Affirmative ActionEmployer

SCIENCE, VOL. 18-

GEOLOGICAL OCEANOGRAPHERThe University of Michigan announces a fac-

ulty opening for a geological oceanographer,preferably at the Assistant Professor level. APh.D. in oceanography, geophysics, or marinegeology is required. Responsibilities includeteaching a research program in area of specialty;and initiating an interdepartmental program ingeological oceanography/marine geology.

Interested persons should submit a curriculumvitae and the names of three references to Dr.Edward Callender, Chairman, OceanographySearch Committee, Department of Atmosphericand Oceanic Science, The University of Michigan,5052 East Engineering Building, Ann Arbor,Michigan 48104.

TERATOLOGIST

PHARMACOLOGIST

BEHAVIORALTOXICOLOGIST

Midwest Research Institute, a not-for-profit organization, offers ex-cellent career opportunities in therapidly expanding fields of pharma-cology and toxicology.

Teratologist-Experience in teratology of rodents;experience with other animalsbeneficial.

Pharmacologist-Experience in drug absorption andmetabolism; knowledge in analyti-cal technique desirable.

Behavioral Toxicologist-Opportunity to develop methodologyand research program in behavioraltoxicology of environmental chemi-cals.

Candidates with doctoral degreespreferred. Careful considerationwill be given to Masters with ex-perience. Salaries are competitiveand will be based on experience andtraining. Please send, in completeconfidence, resume with education,work experience and salary re-quirements to:

Martin N. SchulerManager of Staff Development

MRIeMIDWEST RESEARCH INSTITUTE425 Volker BoulevardKansas City, Missouri 64110

An Equal Opportunity Employer M/F

POSITIONS OPEN 11||||||||||1|1MARINE SCIENTISTS WANTED. Leading mid-Atlantic estuarine and coastal research and edu-cational Institute seeks doctoral-level, marinescientists with interests and capabilities inMARINE MICROBIOLOGY (Bacteriology-Virol-ogy) and WETLANDS or MARSH ECOLOGY.Positions either at Assistant or Associate leveldepending upon experience. Salary scale depend-ent upon experience. If interested, please replywith appropriate, complete and recent r6sum6 toBox 218, SCIENCE. Names of three persons whomay be contacted regarding your candidacyshould be included.

NATIONAL INSTITUTES OF HEALTHNATIONAL INSTITUTE OF

NEUROLOGICAL DISEASES ANDSTROKE-OFFICE OF BIOMETRY

Immediate opening for a GS-13 ($20,677 to$26,878) Mathematical Statistician.A Ph.D. (or its equivalent) in Mathematical

Statistics or 3 years of professional level experi-ence is required. The training or experienceshould have included work in both applied statis-tics and statistical theory. Position is located inBethesda, Maryland.To apply, forward r6sum6 or federal govern-

ment application form (SF-171) to: Mr. MichaelLockard, Building 31, Room 8A-2S, NINDS,Bethesda, Maryland 20014. Applications must bereceived by 20 May 1974.

NEUROSCIENTIST-ANATOMIST-CELLBIOLOGIST

The Department of Cell Biology of the Uni-versity of Texas Health Science Center at Dallas,Southwestern Medical School seeks a seniorneuroscientist to teach neuroanatomy to medicalstudents and establish a research program. Ap-plications are also sought for assistant professor-ships in the areas of Cell Biology and HumanGross Anatomy. Postdoctoral research experienceand teaching experience are desirable. Positionsavailable July 1974.Send curriculum vitae, bibliography, and names

of three references to Dr. R. E. Blllingham,Department of Cell Biology, University of TexasHealth Science Center, Southwestern MedicalSchool, Dallas, Texas 75235.

POSITIONS OPEN Jlfll|f||l * * POSITIONS OPEN INUTRITIONIST with strong community nutri-tion interest to join 40-member Food Science andNutrition faculty at University of Minnesota.Appropriate faculty rank. Primary responsibilityteaching courses in community nutrition andintegrating them with community experience.Also research opportunity. Ph.D., A.D.A. mem-ber preferred. For further information write, be-fore 15 May to Dr. Elwood F. Caldwell, Head,Department of Food Science and Nutrition, Uni-versity of Minnesota, St. Paul, Minnesota 55101.An affirmative action and equal opportunity em-ployer.

OCEANOLOGISTResearch Scientist (Ph.D.) in oceanography-paleo-oceanography, paleoclimatology, to become mem-ber of on-going research in CLIMAP Project.Required background in statistical analysis(transfer function, time series), marine geology,micropaleontology, physical oceanography. Posi-tion open I May. Please send r6sum6 to:

Dr. Andrew McIntyre304 Oceanography

Lamont-Doherty Geological ObservatoryPalisades, New York 10964

An Equal Opportunity Employer

PRIMATE REPRODUCTIVE BIOLOGIST(SENIOR INVESTIGATOR). Core Staff memberof the Regional Primate Research Center atthe University of Washington. To be in chargeof reproductive studies at the primate breedingcolony of the Field Station located at MedicalLake, Washington. Essential characteristics: (i)Ph.D., (ii) extensive experience with nonhumanprimate reproduction, (iii) research experience inovulation and production of timed pregnancies,and (iv) good history of successful grant appli-cations.Apply to Dr. Orville A. Smith, Director, Re-

gional Primate Research Center, University ofWashington, Seattle, Washington 98195. An EqualOpportunity/Affirmative Action employer.

Ph.D. IMMUNOLOGISTA position will be available on or about 1 June1974 for a Ph.D. Immunologist to assist in theconduct of a major research program in tumorimmunology at the UCLA School of Medicine,Harbor General Hospital, Torrance, California.Candidates should have training and experiencein cellular immunology and/or tumor immunol-ogy and familiarity with in-vitro techniques forassaying antitumor immune responses. At least 2years of postdoctoral training is desirable. Can-didates should be eligible for academic appoint-ment at the UCLA School of Medicine and willbe encouraged to participate in all activities ofthe Hospital and Medical School. Level of ap-pointment and salary will depend on qualifica-tions and are negotiable. Send curriculum vitae,three letters of reference, and any other pertinentinformation to: Dr. Yosef H. Pilch, Chief, Sur-gical Oncology, Harbor General Hospital, 1000West Carson Street, Torrance, CaUfomia 95009.An equal opportunity/affirmative action employer.Applications from women and minority groupcandidates encouraged.

PHYSIOLOGISTAssistant-Associate Professor to teach basiccourse and participate in graduate programs inPhysiology. Appointee is expected to maintainan active research program. Equivalent of 2years of postdoctoral experience required. Salaryopen. Applications to:

Dr. Dewey BuntingChairnan Search CommitteeDepartment of ZoologyUniversity of Tennessee, Knoxville 37916

An Equal Opportunity Employer

PROFESSORPosition available in the Department of Oto-rhinolaryngology, University of Michigan MedicalSchool. Candidate must have M.D. degree andDiplomate of the American Board of Otolaryngol-ogy. Responsibilities include administration, com-mittee work in the Medical School, teaching,supervision of patient activities (both outpatientand inpatient), correlation of clinical and surgicalpatient care in affiliated services. Facilities areavailable for research in depth. Code #400H.Send r6sum6 to Box 219, SCIENCE. A Non-discriminatory Affirmative Action Employer.

ANALYTICAL -BIOCHEMIST

The Physical and Analytical ChemistryUnit of our Pharmaceutical Research Divisionhas an immediate opening for a scientist toconduct a research program In developmentof analytical methods for determination ofprostaglandins, their precursors, and theirmetabolites and biological systems, as wellas the application of these methods in sup-port of pre-clinical and clinical studies.

Candidates must have a Ph.D. in analyticalchemistry or biochemistry. Familiarity withmodern tools of separation and physical-chemical analysis is essential; knowledge ofradio-chemical and radio-immunological as-say techniques, and previous experience inpharmaceutical or biochemical analysis de-sirable.

Location: Kalamazoo, Michigan, a mediumsized community near lakes and recreationalareas. Excellent living and working conditions.

Send complete resume, including salaryrequirements to: M. F. Murray, TechnicalEmployment Representative

Upjohn begins with you.I THE UPJOHN COMPANY

7171 Portage RoadKalamazoo, Mich. 49001An equal opportunity employer

26 APRIL 1974

AAAS Membershipsand Subscriptions

* Whenever you write us about yourmembership or subscription, pleaseattach a Science address label toassure prompt service.

* Mail to: Membership and Subscrip-tion Records, AAAS, 1515 Massa-chusetts Ave., NW, Washington, D.C.20005.

a Change of Address: Please provide6 weeks' notice. Paste an addresslabel from a recent issue in thespace provided. Print new addressbelow.

o Query: If you have a question, placeyour address label here and attachthis form to your letter.

* To join or subscrlbe: Mail this formwith your payment, mark the appro-priate boxes, and print your nameand address in the space below.(For renewals, attach label.)

III

El Membership rates (individual only)O $18 USA 0 $21 Canada, PUAS 0 $22 ForeignO $36 Airlift to Europe, North Africa, Near East

E Subscriber ratesO $30 USA 0 $34 Canada, PUAS 0 $36 ForeignO $48 Airlift to Europe, North Africa, Near East

New rates will become effective I May

0 Payment enclosed 0 Bill me later I

Name Please print

| Address

City State Zip MJD4 |

509

- 1.

IIIIIIIIII

Jj POSITIONS OPEN 1liflEI |MIIEIIEIEEEIII||j| COURSES ||1111111|IE FELLOWSHIP jIIPLANT PHYSIOLOGIST

To replace staff member on leave 1974-75academic year in undergraduate physiologycourses and graduate course in plant growth anddevelopment. For further information write:

Dr. F. G. SmithDepartment of Botany and Plant Pathology

Iowa State UniversityAmes, Iowa 50010

PREDOCTORAL ASSISTANTSHIPSAND TRAINEESHIPS

In Oncology, Immunology, Microbiology, Virol-ogy, and Molecular and Cellular Biology. Pre-requisites: B.S. degree in biology, chemistry, orrelated fields with B average or better and highG.R.E. score. U.S. citizenship required. Trainee-ships and assistantships available. Inquiries shouldbe submitted to: Dr. Sheldon Dray, Head, De-partment of Microbiology, University of IllinoisMedical Center, P.O. Box 6998, Chicago, Illinois60680.

RADIOLOGIC TECHNOLOGYINSTRUCTOR for Associate Degree Program inRadiologic Technology, based in health sciencebuildin& fully equipped for laboratory experiencesin radiography. Program affiliated with four localhospitals for student's clinical placement. Appli-cants should be registered (ARRT) and havebaccalaureate degree. At least 2 years of teach-ing in Radiologic Technology and/or 3 yearsclinical experience preferred. Salary negotiable.Contact Personnel Office, Moraine Valley Com-munity College, 10900 S. 88th Ave., Palos Hills,III. 60465.

RESEARCH ASSISTANT PROFESSOR OFPATHOLOGY, Temple University School ofMedicine. The position requires Board Certifica-tion in Pathologic Anatomy and Clinical Pathol-ogy. The applicant must have experience in re-search with publications in the field. The researchmust include experience in electron microscopyand immunopathology. The research will be con-cemed with the biology and immunology ofhuman malignant melanoma and certain analogoussystems in the guinea pig. Reply to Ms. OlgaKushch, Department of Clinical Pathology, 3400North Broad Street, Philadelphia, Pa, 19140.

RESPIRATORY PHYSIOLOGISTApplicants are invited for one faculty positionat the Assistant Professor level. It will be ex-pected that individuals selected will develop aresearch program as well as participate in teach-ing of medical students and graduate students.Send resume to Chairman, Department of Phys.iology, University of New Mexico School ofMedicine, Albuquerque, New Mexico 87131.

An Equal OpportunitylAffirmative Action Employer

DEPARTMENT OF VETERINARYMICROBIOLOGY

WESTERN COLLEGE OFVETERINARY MEDICINE

UNIVERSITY OF SASKATCHEWANSASKATOON, SASKATCHEWAN

CANADA S7N OWOPosition: Veterinary ParasitologistRank: Assistant Professor, Associate ProfessorSalary Range: $13,000 to $19,500 per annum.Qualifications: D.V.M., postgraduate training

in parasitology, teaching and research experience,and strong interest in clinical aspects of parasit-ism.

Duties: Undergraduate and graduate teaching,research and diagnostic parasitology.

Starting Date: 1 July 1974.Application: Letter with curriculum vitae and

names of three referees to:Dr. J. R. Saunders, Professor & HeadDepartment of Veterinary MicrobiologyWestern Colege of Veterinary Medicine

University of SaskatchewanSaskatoon, Saskatchewan

Canada S7N OWO

1111111101181111111111111COURSES ||||i|||||||||MARINE SCIENCE

SOUTHAMPTON COLLEGE, SUMMER 1974

Undergraduate, graduate. Session I: 24 June to26 July. Introduction to Marine Science, Chemi-cal Oceanography, Biology Marine Invertebrates,Marine Ecology. Session II: 29 July to 30 August.Marine Operations, Comparative PhysiologyMarine Animals. For information and applica-tion: Elizabeth Greiner, Southampton College(eastemmost center Long Island University),Southampton, L.I., N.Y. 11968. (516) 283-4000.

SANTA CATALINA MARINE BIOLOGICALLABORATORY-Summer Program

Ecoogy of Marine Fishes (19 June to 23 July).Robert Lavenberg, Los Angeles County Museumof Natural History, with guest participants Wil-liam Eschmeyer, Edmund Hobson, Basil Naf-paktitis, and others.Ecology of Marine Microorganisms (25 July to

28 August). Carl Oppenheimer, Institute of MarineSciences, University of Texas with guest partici-pants Thomas Fenchel, University of Arhus, Den-mark, Cornelius Sullivan, and William Wiebe.Program in Neuroscience (25 July to 28

August). See special announcement below.During the academic year, graduate and under-

graduate courses are available during the falland spring, respectively. Research opportunitiesand conference facilities are available throughoutthe year.For additional information, write Russell Zim.

mer, Box 398, Santa Catalina Marine BiologicalLaboratory, Avalon, California 90704 or phone(213) 74646792.

University of Southern CalifomiaSanta Catalina MarineBiological Laboratory

SUMMER PROGRAM IN NEUROSCIENCE25 July to 28 August 1974

Five-week electrobiology course and oppor-tunity to participate in research during and afterthe course. Consisting of lectures, demonstrations,and directed laboratory work, the course coversthe neuronal membrane, neuronal intercommunica-tion, and neuronal correlates of behavior. Par-ticipants: H. Wachtel (instructor), D. Junge,A. 0. D. Willows, G. Moore, A. Siger, and L.Bishop. This offering was made possible throughthe generosity of the Grass Foundation of Quincy,Massachusetts.For details contact Russell L. Zimmer, Santa

Catalina Marine Biological Laboratory, Box 398,Avalon, Calif. 90704 or phone (213) 746-6792.

loiiii lll CONFERENCE i110liiilllIIiltCONFERENCE

The First Annual National Conference on Bio-medical Research Problems in a Changing World,has been held at the Sheraton Park in Washing-ton, D.C., on 5, 6, and 7 February 1974 spon-sored by the University of Maryland and Medi-Science, Inc. The latest developments andbreakthroughs in such strategic activity areas ofbiomedicine as Heart, Vascular and KidneyStudies; Cancer Studies, Prosthesis Developments,Instrumentation; Health Care Delivery and Bio-medical Ethics has been presented by the leadingscientists of the country. For a copy of theProceedings, Send $10 to Conference, Medi-Sdence, Inc. P.O. Box 637, Laurel, Maryland20810.

CONFERENCE MANAGEMENTExpansion of Multi-Disciplined Conference

Division of small company welcomes opportuni-ties to plan, program, and implement all aspectsof running seminars, symposia, and conferencesin all areas of science. Successful track record.For handling your conference write Conference,

Medi-Science Inc., Box 637, Laurel, Md. 20810,or phone (301) 652-4700.

POSTDOCTORAL FELLOWOpening available 1 July 1974, for a Fellow (M.D.or Ph.D.) in gastrointestinal physiological researchfor 12 months with option for renewal. Stipenddepends on experience. Send curriculum vitae andthree references to G. Robert Mason, M.D., Ph.D.,Professor and Chairman, Department of Surgery,University of Maryland Medical School Hospital,22 S. Greene Street, Baltimore, Md. 21201.

POSTDOCTORAL FELLOWSHIPAvailable for 1 or 2 years in the Departmentsof Physiology and Surgery, working on acuterenal failure under the direction of Dr. Arlo S.Hermreck. Ph.D. or M.D. required. Salary com-mensurate with experience and qualifications upto a maximum of $12,000 per annum. Early dateof commencement is desired. Applications toDr. Arlo S. Hermreck, Department of Surgery,University of Kansas Medical Center, 39th &Rainbow, Kansas City, Kansas 66103.

510

'IIXIWIN1111 f-fllllIRlUIwIIIIWUINI

FELLOWSHIP IN RENAL ANDMEMBRANE PHYSIOLOGY

A fellowship commemorating Dr. Louis G.Welt has been established by the Department ofMedicine, University of North Carolina, ChapelHill, for 2 years' support of an M.D. or Ph.D.interested in postdoctoral research in the areasof nephrology or membrane physiology. Recipientwould concentrate in one of several areas in-cluding renal physiology, epithelial transport,endocrinology of ion and water metabolism, hor-mones and membranes, or red blood cell trans-port. Interested parties should communicate withthe Chairman, Department of Medicine, Univer-sity of North Carolina-Chapel H1ll, Chapel Hill,North Carolina, 27514. Deadline for receipt ofapplications: 1 November 1974.

POSTDOCTORAL FELLOWSHIPCellular and Tumor Immunology. Immediate.$9800 taxable. Experience with lymphoid cells invivo and in vitro desirable. Send curriculum vitae,bibliography, and three references to

Dr. Nick S. HaisTransplant-Immunology Division

Shriners Burns InstituteGalveston, Texas 77550

POSTDOCTORAL FELLOWSHIPTo investigate regulation of hepatic cholesteroland bile acid synthesis. Background in lipidchemistry is essential. Send curriculum vitae andnames of two referees to:

Dr. S. GoldfarbDepartment of Pathology

University of Wisconsin Medical SchoolMadison, Wisconsin 53706

POSTDOCTORAL FELLOW(ENDOCRINOLOGY-BIOCHEMISTRY)

Applications invited from suitably qualified in-dividuals with previous experience in mammaliancell culture and/or membrane biochemistry tostudy endocrine regulation of growth and de-velopment in normal and neoplastic islet cells andhepatocytes. Available immediately. $9500 perannum plus dependent allowances. Write to:

Dr. Donald F. SteinerDepartment of Biochemistry

University of Chicago920 East S8th Street

Chicago, Illinois 60637

POSTDOCTORAL FELLOW(CELL BIOLOGIST)

Applications are invited for postdoctoral fel-lowships in the area of cell biology, biochemistryor virology in a cancer research centre inToronto. Fellowships carry a stipend of $9,000 to$12,000 per annum. Research areas include hemo-poiesis, RNA tumor virology and cellular differ-entiation. Immediately available. Box 220,SCIENCE.

UNIVERSITY OF MELBOURNERESEARCH FELLOWSHIPS

Several fellowships are awarded twice eachyear for full-time research in any department ofthe University.

Eligibility: Ph.D. or at least equivalent researchexperience.

Tenure: 1 to 2 years.Salary: $8,698 (Australian), $470 annual incre-

ment, plus return air fare.Detailed information from Secretary for Gradu-

ate Studies, University of Melbounme, Parkvlfle,Victora. 3052. Australia.

Applications close 15 May 1974.

UNIVERSITY OF MELBOURNETRAVEL GRANTS AND GRANTS-IN-AIDGrants are available to enable academics on

paid leave to conduct full-time research or engagein postgraduate teaching at the University ofMelbourne.

Detailed information available from Chairmanof appropriate department and Secretary forGraduate Studies, University of Melboumre,Parkville, Victoria. 3052. Australba.

Applications close 15 May 1974.

SCIENCE, VOL. 184

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

A B O R ATO RY. ..A P PA R AT U SINSTRU M ENTSC H E M I CA L SG LA S S WA R E

age Fullerton .Calif.

Philadelphia . Silver Spring . SyracusePenna. Md. N. Y.

Circle No. 307 on Readers' Service Card

L

I

15I

I

I

' W=3nL7 ,"s

go 0 Se .- 0e

- S - S -S 5 * - S

* 5- 0- S S .0 0

* S. - 0 0 -

*0 . .00 0 0 -- 0- 0 S S -

, i-- ) V I,- ) w

aa r- 0,l- 1- t5 Is(

mlq

A Jef I

L.*