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THE HUMAN INTEGUMENTNORMAL AND ABNORMALEditor: Stephen Rothman 1959

AAAS Symposium Volume No. 54A symposium presented on 28-29 De-cember 1957, at the Indianapolismeeting of the American Associationfor the Advancement of Science andcosponsored by the Committee onCosmetics of the American MedicalAssociation and the Society for In-vestigative Dermatology. The volumeoffers a fair illustration of what hasbeen achieved by modern research incutaneous physiology and pathophy-siology.270 pp., 59 lilus., index, cloth. $6.75AAAS members' cash orders $5.75

Chapters1) The Integument as an Organ of

Protection2) Circulation and Vascular Reaction3) Sebaceous Gland Secretion4) Pathogenetic Factors in Pre-malig.

nant Conditions and Malignan-cies of the Skin

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cally observed (C = .864) to survivefor 1 millennium, on the average. Thatis,

p. = CO (1 rev.)674

Letters(Continued from page 630)

gentina's wholehearted support. Thus,it cannot be denied that this countryhas really made, for over 50 years, asincere effort in connection with Ant-arctica. On several occasions, too, for-eign investigators, including Americans,have been welcome to use the facilitiesfurnished by the Instituto Antartico andthe Argentine Navy. I am sure thatthose who have done so will endorsemy statement.

It is quite obvious, on the otherhand, that Argentina's resources andpotentialities, as well as its scientificmanpower, do not allow a comparisonof results, on equal terms, with thoseobtained by the United States or, forthat matter, with those of any of themajor powers. But when ratios arecompared, the achievements, I amproud to say, are quite outstanding, ashas been stated on more than one oc-casion by American and other scien-tists.

Current projects in meteorology,glaciology, geology and mineralogy,oceanography, and some aspects ofbiology are now under way. The min-eral, botanical, and zoological collec-tions from the Argentine sector of Ant-arctica are among the most numerousand at present are being studied sys-tematically by both Argentine and for-eign specialists.

It is certainly not the intention ofthe government or of the entities con-cerned to diminish in any way the ef-forts that I have mentioned.

JORGE E. WRIGHT10400 43 Avenije, Beltsville, Maryland

Formulas in Linguistics

Several points seem in need of correc-tion in the formulas in the otherwiseexcellent first artLcle, "Current trends inlinguistics," in"Science for 30 October[130, 1165 (19$95].

Greenberg's first equation, nt = C"(Eq.l)(line 5, col. 1, p. 1169), is con-fusing because it equates a number, n,of millennia to a power of a constant,Cn, which is less than unity (since C =.864). This equates a time period ofthousands of years to a proportion lessthan one of the original standard set of100 words, whereas Greenberg evi-dernly meant to say that the proportionof words surviving after n millennia(call it "pn") would equal the nth powerof C, where C is the proportion empiri-

r =Ct' = C2t (2)This is the joint probability from twoidentical exponentially decaying curves.This is Greenberg's "proportion of re-semblance r."To solve explicitly for the time period

t elapsed since the two languages wereone language, take the logarithms:

log r = 2t log C

Then, isolating t gives:

t = log r/2 log C (3)But the ratio of logarithms is here in-verse to the (incorrect) ratio Green-berg gives (1) (in line 29, col. 1, p.1169), namely:

t = log C/2 log r (3 misstated)

Alternatively, one can, of course,solve explicitly for the rate of survivalconstant C if one has the proportion ofthe 100 words surviving in both lan-guages and an independent historicalestimate of the time -t elapsed since theywere one language; thus:

log C = log r2t

C=ri= (4)

in terms of the survival rate C per mil-lennium. This should remove confusionin these formulas for scientists notfamiliar with them.

STUART C. DODDWashington Public Opinion Laboratory,University of Washington, Seattle

Note

1. With reference to Greenberg's reference (7),Kroeber's article appeared in volume 21 (not29) of the International Journal of AmericanLinguistics, on pages 91-104 (not page 223).

SCIENCE, VOL. 131

Another confusion arises in the shiftof meaning from n to t within the oneparagraph. At first it is implied (next-to-last line, col. 3, p. 1168) that t isthe millennium unit, while n is stated tobe the number of such units (lines 3 and5, col. 1, p. 1169). Then, in line 27 ofcolumn 1, page 1169, Greenberg shiftsto speak of "t millennia," and his for-mula for t (t= log C/ 2logr) ob-viously indicates a variable number ofmillennia and cannot denote the con-stant 1000-year unit.

I-t would be simpler to omit n alto-gether and define t as the number ofmillennia or as time in millenniumunits. Then the proportion of 100 wordssurviving t millennia is simply the tthpower of the survival rate-that is, pt= C'. Then the joint proportion (r) ofwords surviving in two similar inde-pendently changing languages whichsplit apart is most probably the productof the two equal probabilities, or thesquare of the survival probability,namely:

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The joint meeting, of the Entomologi-cal Society of Amlerica., the Entomolog-ical Society of Canada, and the E-tomologic.al Societx of Ontario. heldin Detroit, Mich., 3t) Nov.-3 Dec.1959, proved to be another sign ificantevent in the long, and fruitful relation-ship hetxx een American and Canadianentomologists. There were 984 regis-trants (at the meeting. Detroit xxas anappropriate meetingi place, since thefirst nationadl meeting of entomologlistsin America the meeting of the En-tomologicall Clubh of the AAAS x'Lasheld in Detroit in 1875. It is signifi-cant that the Association of EconomicEntomologists (later the American As-sociation of Econoimic Entomologists).one of the precLirsor organizations ofthe present Entomological1 Society ofAmerica, came into being in Toronto.Canada, in 1889.The planning of this joint meeting.

the first for these three societies. w,san excellent example of internation.lAcooperation. Two years in advance ofthe Detroit meeting it was agreed thatthere Woukld be coniplete integration oftechnicall programs and social actixities:the only separate meetings held by the

societies Were for the condLuCt of bIusi-ness matters. Registration was uniformfor members of all three societies, aIndwas handled at a single registrationdesk. Cochairmen were designated forall the committees having responsibilitvfor meeting activities, and technicallprogramning, local arranngements, ex-hibits. and entertainment w\!ere handledbx Canadian-Amnerican teanis.The broad field of biological con-

trol w\as chosen by the program conm-mittee as a topic that ws as timelx andappropriate to the current interests ofNorth Americain entormologists. A guestspeaker. J. J. Weiscr, clirector of thelaboraltor-y ofl insect pathology, InstituLteof Biolo,\. Czechoslovak Academx ofSciences. tliscussed insect patholog- andbiological control activitics in socialistCOulnitries. His participation in the pro-gram vls nimade possible bv a traxvelgrant from the Rockefeller FouLndation.By a hatppy coincidence the memoriallecturer chosen for 1 959 was E. A.SteinhauLIs (Universitv of California).w,ho is a W orld authorit\ on insectpathologx\ and microbiologr!. The themeof the meetin- was fUrther sUpportedby txvo sy nposia on biological control.

AbouLt 350) technical papers xwerepresentedi during the 4-dav meeting. Inall. there were 1 5 synmposia coveringsuch diiverse sUbjects ais zoogeograiph\.apicLilture. teatchino. extension x ork.

chemical control, medical and veteri-nary entomology, and insects in rela-tion to plant diseases. Members of 4-Hclubs having entomological projectswere invited to exhibit their materialsand give demonstrations. Several ofthese verec oLtstanding and attractedmuch favorable attention. Other pro-gram highlights were a report fronithe U.S. Department of AgriCLultuLre'sentomological delegation to theU.S.S.R. and an exhibit of prize-win-ning piCtures of insects in the photo-graphic s'alon. Both these events ait-tracted capacity afudliences.

P. W. Omnan (Entomology ReseairchDivision, U.S. Agricultural ResearchService) vas president of the Entomlo-logical Society of America dLuring1959. NI. P. Jones (Federal ExtensionSeI vice, U.S. Department of Ag,ricul-ture) was installed as presidient for1960) at the Detroit meeting, and H.MI. Harris ( low a State Universitv)w.as instailledi as president-elect. The1960) meeting of the EntomologicalSocietv of America will be held in At-lantic City, N.J., 28 Nov.-I Dec. 1960.On 15 Jainualrv, the Entomological

Societv of America moved its nationalheadquarters to 460)3 Calxert Rd.. Col-lege Park. 1tMd.

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Forthcoming Events

April

1-3. American Soc. of Internall Medi-cine, San Francisco, Calif. (R. L. Richards,350 Post St., San Francisco 8.)

1-3. American Soc. for the Study ofSterility, Cincinnati, Ohio (H. H. Thomas,920 S. 19 St., Birmingham 5, Ala.)

1-4. Bahamas Medical Conf., Nassau.(B. L. Frank, P.O. Box 4037, Fort Lauder-dale, Fla.)

2. Paleontological Research Institution,Ithaca, N.Y. (Miss R. S. Har-ris, 126Kelvin P1., Ithaca.)

2-6. American College of Obstetr-icsand Gynecologists, Cincinnati, Ohio. (D. F.Richardson, 79 W. Monroe St., Chicago 3.)a

3-6. American Surgical Assoc.. WhiteSlllphur Springs, W.Va. (W. A. Altemeier.Cincinnati General Hospital, Cincinnati.Ohio.)

3-7. International Anesthesia Resear-chSoc., Washington, D.C. (A. W. Friend.E. 107 St. and Park Lane. Cleveland 6.Ohio.)

3-8. Nuclear Cong., New York, N.Y.P1). Lange, Engineers Joint CoLncil. 29 W.*9 St., New York.)4-5. Solar Energy. symp.. Gainesville,

Fla. (J. C. Reed, Mechanical EngineeringDept., Univ. of Florida, Gainesville.)4-6. American Inst. of Electrical Engi-

neers, HouLston, Tex. (N. S. Hibshami145 N. High St., Columbus 15. Ohio.)4-6. American Inst. of Mining, Metal-

Illrgical and Petroleum Engineers (43rdNatl. Open Hearth Steel Conf. and B31astFuirnace, Coke Oven and Raw MateriialsConf.), Chicago, Ill. (E. 0. Kirkendalll,AIME, 29 W. 39 St.. New Yori 18.)

4-6. American Oil Chemists' Soc.. Dal-las, Tex. (Mrs. L. R. Hawkins, AOCS, 351F. Wacker Drive, Chicago 1, 111.)

4-6. Chemical and Petr-oleIm Instru-moentation Symp., 3rd natl., Rochester,N.Y. (Director, Technical & EducationialServices, ISA, 313 Sixth Ave., Pittsbulrgh22. Pa.)4-7. Atomic Exposition, New York.

N.Y. (Atomic Exposition, 117 S. 17 St..Ihiladelphia. Pa.)

4-8. American College of Phvsicians,aLnnLtal, San Francisco. Calif. (M. Ross.Amer-ican Psychiatric Assoc., 1700 18 St.,NW, Washinigton 9.)

4-8. American Meteorological Soc., 3rdapplied meteorology conf., Santa Barbara,Calif. (H. G. HoLghton. AMS, Dept. of\Meteorology, Massachusetts [nst. of Tech-nology, Cambridge 39.)

4-8. American Soc. of Mechanical Engi-neers, New York, N.Y. (D. B. MacDpu-gall, ASME, 29 W. 39 St., New York.)

4-9. American College of Physicians.San Francisco, Calif. ( E. R. Lovel.and.4200 Pine St., Philadelphia 4.)

5-7. Instrument Soc. of Amer-ica (NatI.Chemical and PetroleuIm Symp.), Roches-ter, N.Y. (H. S. Kindler, iSA, 313 SixthAve., Pittsburgh 22, Pa.)

5-7. Naval Structural Mechanics, 2ndsymp., Providence, R.I. (E. H. Lee, BrownUniv., Providence.)

5-14. American Chemical Soc., natl.,Cleveland, Ohio. (A. T. Winstead, ACS,1155 16 St., NW, Washington 6.)

(See issiue of 19 FebruarY for comprehetnsis-e list) I

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* LIGHT SCREEN for actuation of chrono-graphs and for the triggering lightsource of shadowgraph systems in bal-listic studies hats a field plane size 6 by6 in. In operation a light beam is re-tlected back and forth between two6-in.-long parallel mirrors spaced 6 in.apart. Interruption of any portion of thefield by a projectile 1 mm in diameteror larger prodluces a change in cLrrentclitin a multiplier phototube detector. Witha potentiall of 625 volts applied to thedetector, a I-in. diameter projectileproduces an outpuLt signal ot I voltacross a 1000-ohm loald resistor. (AvcoCorporaLtion. Dept. Sci333, 201 LowellSt., WAilmi ngton, Mlass.)

* SORP'[ION METI R for n3easurenment ofsuLrface area of materials and tor stUdyof adsorption phetiomena operates bxpassing a know n helium-nitroaen mix-tuie through the sample cooled by liquidnitrogen and observing the change incomposition. The change in the mix-

ture's nitrogen concentration is meas-ured by a thermal-conductivity detectorand inscribed as a peak on a potentiom-eter-recorder chart. A second peak isrecorded by warming the sample andmeasuring the nitrogen released. Thepeaks are proportional to nitrogenadsorbed and desorbed. A one-pointcomparison with a standard can be ac-complished in 10 minutes. (Perkin-Elmer Corp., Dept. Sci389. Norwalk,Conn.)

* SOItAR FURNACE is available for mobileor stationary mounting and is furnishedleither assembled or in kit form. Di-ameter of the furnace is 6 in., and temii-peraLtures uIp to 6741 F are said to beobtainable with heat flux densities up to365 cal cm' sec. (Waltham PrecisionInstrLument Co., Dept. Sci38 1, 22 1Crescent St., Waltham 54, Mlass.)

* PHOTOELECTRIC MOI)tAIATORS aIrenonmecha,inical. solid-state devices withchopping frequency variable from dI-cto 400 cx sec. Switch action mlay besingle pole, single throw, or double pole.single throw. Sensitivity is salid to beI ,uv, dx namic range 60 db. Operatingtemperature range is -2' to +100°C.Life is said to exceed 5000 hr. (Cam-bridge Electi-onics Corp., Dept. Sci369,Box 301, \larshfield Hills, Mass.)

* PUtLSE PATTFIRN GENERATOR is a fLullytransistorized instrument thiat providesa pattern of any length fronm I to 100pulses with pulse rate continuouslyvariable fromii 10 to 15,000 per seconiwhen an internal oscillator is used, andfrom 0 to 1 00.000 per second whendriven externally. Each pulse positionprovides a mark or space condition asselected by 100 individual switches.Output level for the mark is variablefroml zero to + 10 volts, and the levelfor the space is vlariable froml zero to-10 volts. Rise and fall times are eachI /isec. (Data Products Co., Dept. Sci-395. 7320 Westmore Rd.. Rockville.

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* TORQUEMErIR is available withranges fromi(0. oz in. to 500 oz in.AcCuracy is said to be i2 percent offull scale. MeasUrements are independ-ent of shaft speed between 50 and 24-t)00 rev/nmin, and of clirection of shaftrotation. Up to five pickups mi.ay beused wvith a single indicator. (MNetronInstrumiient Co.. Dept. Sci397. 432' I in-coln St., Denver 3, Colo.)

* pH ELECTROI' ADAP'PER for ulse withthe manufLacttLrer-'s vibrating-reed elec-trometer is said to permit measuLrementof changes of pH Ias small as 0).0O)05uLnits. The adapter providles for connec-

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U PULSE GENERATOR featuiring a pulser-ise timie of less than 2.5 m1psec has twoindependent outputs. Puilse xv idths fromi2.5 to 25 rnpsec and repetition ratesfromi 10 cy to 10 Mcy/sec miay becontrolled externally. A fast flexiblegating input is available for comiplexpulse-timne and pul1se-amplitude selec-tion. A positive 1 5-volt trigger OLutpLttma,'-y be uised to initiate tim-ing cycles orto trigyger an oscilloscope. (El-I Re-search Laboratories. Dept. Sci4Ol l922P.ark Blvd., Oakland 6, Cali1f.)

*RESISTORs are sai'd to maintain ac-curacy of ±0.1 percent at temperatLiresfrom -65' to +185 C. Twenty-threemodels range from printed-cirCuilt typesof 0.l0-wxatt rating and 35 kohm maxI-mum resistance, to axial-lead types of2-wat't rating and 3.5 Mohm resistanceand lug types of 2.25-watt rating, and 7Mlohm resistance. (H'amby Corp.. Dept.Sci402, 7241 Eton Ave., Canoga Park,Calif.)

* MERCURZY-ARC LAMP is a high-pres-sure nierctlry-arc point source for oper-aition on d-c. The lamip is rated at 100-watt inpuIt power. Spot size is 0.012 by0.012 in. LumniinOuIS LIuX output is 2200ILI and 'average brightness is 140,000caI c. A po\ver SuIpply I'S aVailable,or standard wxet-cell batteries miay beLlsed. (PEK Labs. Inc., Dept. Sci399.4024 Transport St., Palo Alto, Calif.)

*DIGITAL COMPUJFER for edUcationalulse is a stored-programn, single-addressmachine. ILogical interconnections be-twveen plUg-in moduIles aIre effectedi withremovable plugboard patch panel. Al-ternative patch panels convert the ma-chine fromi a general-purpose COMPLlterinto a diglital differential analy,zer wvith20 intehfrators. The machine's memnorvuses four magnetostrictive delay linesproviding, a total of 1 28 words wvithaveragYe access time 192 /isec. Word sizeis 2 bits plus sign. Inpuit is manual withoctal keyboard, and output is providedby indicator lights, oscilloscope display,or both. Other input and ouItpuit devicesare optional. (Comiputer Control Co.,Dept. Sci379, 22151 Barry Ave., Los An-geles 64. Calif.)

JOSHUA STERNNVationa(l Bureaui of Stanidar-ds,

'ERSONNEL PLACEMENT

.1IIll POSITIONS WANTEDWoman Biologist, Ph.D.. 38, desires colleg,eteaiching positions ins a setuiiri college bec,11itirsiriJLunIeI sir Septemiber. Broc)nc backgOicincld 'ins thebiologicent scieisces s\vits bota.nynsisaicr andc ZIciilo.-y and bicichirinsitr s siicin 's; \scarns of fuill ntimecuslecgeencsrccin xpet nens1ce. B3ox 47. SCIENCE.

3, 25; 4,15

Honorable Mention Westinlghiouse, 1959. Cotns-pleted Yeair engicnseering. 2 sears cif Cusllege

ninlsmtics. Exirnic:Suisnssien, 1959. SturLCesiltrinc.inee David Taylor Mocscel Bansin. WXashiit(icoi,D.C. Cars t\spe. Available Junnse Sepiember. WXillstravel. Healths excellent (6'2"). Box 48, SCIENCE.

x

Plant Biologist, Ph.D, desires fuill tinsse reseanrchs.orn uearilv so: bot.any arid phsissolcigsy cssssianrd isoxiOLSu pilansts; gi owths lion nssorses; ethicsiobotisany. Boux 511. SCIlENCEF. X

Psychosomatics. Pr ochinctive Pisvsniolcigist. extenssiveexperienlce: renal. ~c:rcdsvacihatS LII. cosnicliionsnectr-eflex teCl1i(Uinues. seeks uspls01Usritnri iii desvelciplaboratory ton uniter disciplinarny nsesc,icr of,psychoicsseenalntbehsavicoranl rietractionrs. Elircieritcirganizer, excellent teancher. linscuunsi. extiert inscientific Ruissian. Box 51, SCIENCE. X

Virologist, Ph.D., desires responisible acadernsic orinduIstrial research position, preferably WestCoast. Experienced tiSSUe CuIsuure, himanial andanimal virus vanccinse cdeveloprssesit, pLublic health.Box 37, SCIFNCF. 3/4

(a)X'Voung Ph3vsiologist, Ph.D. in Juine 1961),ssitsl Atnisv electrosisics titinin-ioc: esires basicreseatrcli posi.tiots. (b) Bacteriol'ogist PhiD.. bin-chlemiistrY tisitlor: puLblic heal1th tId Utnisvcisityte.nclsiisce,xpct ietice. svirolocs, reseatrcli p -efersacatdernsic ot- researchi appo"intmneit. c ) Phar-miacology Phi.D.. plss siolocsl rumior: militiat- s etsearch its envisronnimeist Plisvsioloigy str-ess, optics,radiation etflects. btorntis,itieta,tics:, asvailableresearchi or adminsristratisve aippoinitmient. S.3-lMedical Bureaut, Iusc.. Science Disvision, BtirneiceLa:rson, Pt esidleiti, 91)1 Northi Michsican Aveisute,(Ihiclaco. X

Assistant Bibliographer, for sclisice itifor-mationptublications. Maister-s degree its oise of thle biolog-ic.nl scietices or its eqUiVisCdet i'Cqutired. plciscoimpetenicy its onse ot isiore i,tn9LgutgS. ILocated oniEast Coast. Please scud( cosiplete restumn6 of edu-caitioni. experienice. anid salary reqLinined to Box 49.SCIENCE. X

Bacteriologist. 57938-591 38 annuialls. Positionsopenl in clinical b,ncterioloc ait lzit ccStibtin batsDetiioii lhospitail senr Universits of Mlichtg.ans antd(Waisne Statie Unliscrsistv. VscelI equipped l.ibora-torv available fou r-esealrch., libetral a1i1i1ural atidsick le.rve. retin eniseist plitsi pILIS social seCtIt ity.Ph.D. e.ALlilcCLI. Contact Dr. S. E. Gocunld. Direc-ior of Patiliolocv. Wvaysne Couinty Genierazl Hos-pital. Eloise. NMichig-ai. 3/11; 3/18

Bacteriologry-Immunoloigy. Techr,ohocists ssviths B.S.,M.S.. oi- equiva leist expen ensce suatitecd for re-seaircli. Partticipationi ins iachsinc, Ptro-ram alsouslvolsedh. Petrmanteince. .rdsancetrnerit asssuired.Satlaries openi. Dr. T. Rosebitiv, Dept. of Batc-teicriolog Wa.shiinicons tJriivei-sitv Sclsicil cif Dens-tistnry. St. Louiis. NI 5iSS ti'. X

Enzyme ChemistTo oriciniate arid SLip-et sVise reseasrchainch desvelopmsetnt ssvork directed to-svardhs then itieuCLtiC enzsyries. Back-

."rottind ins biochemnistryv arid miicro-biologs as swell .is sevenral ycans cfindLScustri:l expct ieisce eqtlircd.

salarv.i Doni't phionie'-write to

Dr. Bruno PuetzerV.P IDirector of Reveairchn

All replies swill be kept confidenitial.

SchenLabs Pharmateuticals, Inc.Empire State Bldg., N. Y. 1, N. Y.

4 MARCH 1960

Anatomy Departmenit, Daiotusie University, Hali-fax, Nova Scotia. Applications are Insited fortwo positionis at she r ink of Assistant Professorin the D)epartment of' Anatomy Expct tenice inthe teachinc, of 105os anatonis is essenitiail anda swillinigness to tin1dettake some teachioc innet.It anlatonivs h istology or- enibi 5votocs desir-able. Thle suiccessfutl canididates will be expectedto participate in the aclisve research proorani ofthe depatrtment, for wshich good facilities areavailable. Applicanits ssvibh aniedical degree ssvillbe prefer red althouch thlose ssith an hionors de--ree in medical scieceic or biolo-v swill receivespecial consideratiion. 1-lie salars or a medicalgraduttae svit nimiii insumll qUttalihicationss ss ll be565111. The salars ssvill dcpenld ttpon qUalitiCatiotiSartid experietice. Applications Slioctld be maizde toProf'essor R. L. deC. H. Satunders at the aiboveaiddriess. 3 4; 4/1; 5/6; 6/3

Biochiemist, initer-ested iti inmmuniology atid hyper-setisittvits research. Opp'Onurti.ntty fot indepeisdenitreseatrcli aridi possible aicaidemic atfliation. ContactDr. L. H. Ci-iep. U.S. Veteratis Adisi'tistisit tioniHospital. PittsbUti l 411, Pa. Salary $9iil)ti-I$Ittl.((x

(a) Chiemist. PhiD. (b) Physics teaclher. M.S. Botilpositioiois offcTen 1IS11unsu loppot1Iitinrt its a i -OssVitligcollege in she Southeast. Sakatrs dependenit tiponstratininig antd expe-i ence. Setisd resumeI to Box42, Collegeboro. Georgia. X

RESEARCH ORGANIC CHEMIST, MI.S. orPhi.D. Phairmaceutical expei-icrice in ssynthseticsanid i1aicti al pi-odLICts desit ed. Easterni UisitedStaites. XX ite listinig ediicatioin. swork expet tcisce.arid salary desiredl.

Box No. 52. SCIENCE

(a) Chiief Mlicrobiologist. Ph.D. or M.D.. to dit-ectacti ev depairtniseini Of Ian_c ultliversitt hocspital.59111111'- 13.11111 seasi N itsh iscireases; E ast. (b)Anatomy Associate Professor ssvithi teatchintg. r-eseatrcli. and ,admisnistrativse abilitsy. SOiLUissvest. (c)Fermtentation Desvelopment Supers isor. capableclseisiist w its suipervisitic .tidmitiisti-aitis e expeti ensce;larce phsairnacecUtical firm, $1011011111 12,11101 vcarrEaist. (dl Biochiemist. Ph.D)., witih hospital teach-tug and suipetrsisitig experience; S900() searl ill-ciTeasricil to $12.11101; SmLith. ( e) Plharmacologist.PhID. or NI .D.. to head cardioV aSCtL,IIa reseairclhdivisioti ol' inspomtautt pilZiariiaICeLitical tirtil. 5 I11.1(10year tIP; East. (f) Pathiologist, Ph.D., NI.D., or-D.V.MI. degree. swith clinical experieisce forbiological research laboratories. (.S111)1) yeai tip;Southtl. g) Biochiemist. Ph.D. oi- MIS. deg,ree.for- ClifiCIIa StLidies of litiztm;t brain. nmidswcstetrishiospitail. (Please swritie for deta ils; also manyostlier positions asvailable ihrOLigl ouir nat ioinwideservice.) S3-1 Medical Bitreau, Ine.. Science Divi-siots. Bitt tseice Larscois. Pr-esidetit, 900 NorthiMicts-igais Aveisute, Chicago. X

679

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Box (give number)Science1515 Massachusetts Ave., NWWashington 5, D.C.

IIIIIIIIIIIIIIIIIIIIIIIIIIPHD POSITIONSOPEN ||||| 1||1Medical Technician, male or female, B.S. pre-ferred, reseaorch laboratory. Paraffin sectioning,H and E pluLs special staiining. Some experiencerequired. Dr. J. Christensen, St. Barnabas Medi-cal Center, High St., Newark, N.J. 3/11, 18

Microbiology and Plant Biochemistry GraduateAssistantshipas. $21111) $2310(1 per year, free ttiition.D. B. Johnistonle, Hills Building, University ofVermnonit, BuLrlinigtoin, Vt. 3/4

Physical Biochemist, prospective or recent Ph.D.,as collaborator itn studies of protein dcniaturationat Massachulsetts ltistitute of Techntology. Excel-lent salary, appointment reness able for severailyears. Early availaibility is very desirable. Writeto Dr. J. Steillnhirdt, Room 2()D-10l1, Massachiu-setts Institute of Technology, Cambridge 39. 3/4

Physiologist (2), Ph.D., to teach cellular or mam-m.ilian physiology and elementary physiology orzoology. Embryologist, with backgrouLnd in bio-chemistry or physiology, also desired. September1960. Assistaint or associate professor. Apply toC hairmin. l)epartment of Zoology, LouisianaState Univeirsity. Baiton Rotige. X

Postdoctoral Trainieesitips in Nletabolism and Nu-trition. Postdoctoril triaineeship in the field ofmretabolism a.ind cliniicall ilLutrition are avs.ilablein the IDepartnment of Biochemristry and Nutrition,Unis ersity of PittsbLurghl. The programn is pri-marils for phs sicililts s ho hvs e haid t iiiiimLII'nof an internshtip and s ho aire initerested in clinicalinvestigaitio.n. The stipceids begin at $55011 perainnumiT, anid appointmients mav be mide fr aperiod of I to 3 ye.irs beginniiing 1 JuLly 1960.Pleise .ipplv to L)r. Robei-t L. Olsoni, Professorand Head. Dep.iitment of Biochemistry and Nu-tritioni, University of Pittsburgh, Pittsburgh 13,P i. 3/ 1

Research Associate, M.S. or Ph.D. Major inchemistry. Wsarbtirg orientation desirable. De-partmrentit;lized reseairch laboratory in large gen-eral hospital. Immnlediately available. Vs rite Dr.Robert C. Gratier. Director, Siniger ResearchLaborator y, Allegheny General Hospital, Pitts-butrgch 12, Pa. 3/4

Science Teachers, Librarians, Administrators ur--entls needed for pOsitioins in mins st.ites aindfoicign lainds. MNonthls noni-fee pl.icemetit jourtnlsinice 1952 Igives compiete job data, salaries. Mem-bers' qi.llifications and vacaincies listed free. 1issue, $1. Ye.irly (11 issues) membership, $5individual; $10 instittLitional. CRUSADE, SCI.,Box 99, Station G, Brooklyn 22, N.Y. eow

SENIORORGANICCHEMIST

Organic research laboratories of major pharmaceu-tical manufacturer located in Philadelphia desiresexperienced Ph. D. organic chemist. Additionalchemical engineering courses or experience with largescale preparations highly desirable. Outline all pre-vious training ai(ii exilerience and give salary re-quirement. Liberal benefit program. All replieshandled confidentially. Box 46, SCIENCE.

(a) Virologist-Tisstue Culturist. Reqtiires Ph.D.trained, expericniced virus isolation, ctiltivationcell culttLires for tuLmor vii us research; newbuilding. ness lv organiized eastern research group.(b) Biochemist Ml.S.. PhD)., to head dep.irtment,large C hicago hospitail. (c) Plharniacologist. Ph.D.to cst.iblish eVAlu.ition progr.am iissociated wsithtoxicity stiidics in nesv drug screening, report todirector, plharmaicologic research; Nlidwcst sub-sidiary proninteist pliarmaceiltical company. (d)Biochenmist. Stupervise departmcnit in neew, su-perbly equlipped l.iboratoiy, 2(10-bed fully ap-proved hospital; Phil.idelphia suLbuLrban .irea. (e)Bacteriologist. Degree, 1 year experience fordiagnostic microbiology division, state healthdepirtment; souLtheistern uLniversity center.(Please write for an analysis form. OuLr 64thyear: Founders of the counselling service tothe medical profession, serving medicine withdistinction over hailf a century. ) Scienice Division.Woodsward N\ledical Bureau, Anni Woodward,Director, 185 North Wabash, Chicago X

Virologist-Tissue Culturist, Ph.D. Training and /orexpei ience in the isolation of viruses as well asthe cultivation of cell ctiltuLres for research onproblems relatiiig to ttumor viruses. Ample salary,nes bulilding, and newly organized researchgrotip in East. Box 15, SCIENCE. 3/4

680)

IIIiii ilIDDiHI IIOID|IF FELLOWSHIPS-Predoctoral and Postdoctoral Fellowships in Bio-chemistry. Study program leading to the Ph.D.degree, also postdoctoral research. Predoctoralannual stipenids begin at $2800 plus a tuitionexemptiotn and clependency allowance and increasesto $3200. Postdoctoral fellowships range from$4500) tipward depending uipon experience anddependency status. Basic research in intermediarycarbohvdr.ate, fat, protein and nucleic acid meta-bolism, oxidative phosphorylation, protein syn-thesis, einzvmology. Excellenitly equipped labora-tories. X'rite Dr. Harland G. Wood, Chairman,Departmiient of Biochemistry, Western ReserveUiniversity, Clevelanid 6, Ohio. 2/26; 3/4, 11

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