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SCIENCE, VOL. 134360

OPO

of natural and medical sciences are in-vited to attend. (Organizing Committee,the University of Padua, Via 8 Feb-braio, Padua, Italy)

The newly formed American Societyfor Cell Biology will hold its first meet-ing 2-4 November at the EdgewaterBeach Hotel, Chicago. Deadline for300-word abstracts: 15 August. [Hew-son Swift, Department of Zoology,University of Chicago, Chicago 37,Ill. (abstracts); M. J. Moses, Box 2982,Duke University School of Medicine,Durham, N.C. (information)]

A biomagnetic symposium, plannedto bring together all individuals inter-ested in this field, will be held 24-25November at the University of Illinois.(M. F. Barnothy, University of Illinois,833 S. Wood St., Chicago)

Grants, Fellowships, and Awards

The National Science Foundation'sgraduate laboratory development pro-gram is offering grants to institutions ofhigher education to aid in modernizing,renovating, or expanding graduate-level basic research laboratories. Onlythose departments having a graduatetraining program leading to the doc-toral degree in science at the time theproposal is submitted are eligible.Deadline: I September. Proposals re-ceived after the deadline will be re-viewed after 1 March 1962, the nextclosing date. (Office of InstitutionalPrograms, NSF, Washington 25)

The General Thomas D. White Spaceaward has been established by the Na-tional Geographic Society to "encour-age and inspire further conquests ofspace." The award will be presentedannually "to that military member orcivil service employee of the Air Forcewho has made the most outstandingcontribution to the Nation's progressin aerospace."

Fellowships in marine planktonologi-cal research, to be conducted at theSandy Hook Marine Laboratory, arebeing offered by Columbia's LamontGeological Observatory. The fellow-ships, open to qualified scientists of anynationality, will be limited, in general,to $1500 plus transportation. A re-search vessel is available at Sandy Hookfor field collecting. (Director, SandyHook Laboratory, P.O. Box 428, High-lands, N.J.)

378

Scientists in the News

Edward Wenk, Jr., has been namedtechnical assistant to Jerome B. Wies-ner (Special Assistant to the Presidentfor Science and Technology) and ex-ecutive secretary of the Federal Coun-cil for Science and Technology. Wenkwas formerly senior specialist in scienceand technology with the LegislativeReference Service of the Library ofCongress.

Richard Trumbull has been appointedhead of the Psychological Sciences Di-vision, Office of Naval Research, suc-ceeding Denzel D. Smith, who resignedto join the staff of the National ScienceFoundation. Trumbull was formerlyhead of the division's physiologicalpsychology branch.

James D. Hardy, recently appointedprofessor of physiology in the YaleUniversity School of Medicine, hasbeen named director of the John B.Pierce Foundation's New Haven Labo-ratory.

Graham Hoyle, of the University ofGlasgow, and Seymour Shapiro, ofBrookhaven National Laboratories,have been appointed professor and as-sociate professor of biology, respec-tively, at the University of Oregon.

Victor F. Weisskopf has been ap-pointed the fourth director-general ofthe European Organization for NuclearResearch (CERN) in Geneva. Weiss-kopf, a former member of the organi-zation's research directorate, succeedsJ. B. Adams, who has been named di-rector of the Controlled ThermonuclearResearch Establishment, t2ulham, Eng-land.

Paul E. Lacy, assistant dean of theWashington University School of Medi-cine, has been named Mallinckrodtprofessor and head of the university'sdepartment of pathology.

Dieter H. Sussdorf, research fellowin immunochemistry at the CaliforniaInstitute of Technology, has beenawarded the Royal Society of Edin-burgh's David Anderson-Berry prize.

John W. Knutson, chief dental of-ficer with the U.S. Public Health Serv-ice, has been appointed professor ofpreventive dentistry at the new Univer-sity of California (Los Angeles) Schoolof Dentistry.

John A. D. Cooper, professor ofbiochemistry and associate dean ofNorthwestern University MedicalSchool, has been named dean of theUniversity of Miami School of Medi-cine.

Jolhn C. Hume, chief of the healthdivision of the U.S. Technical Co-operation Mission to India, has beenappointed professor--of public healthadministration at the Johns HopkinsSchool of Hygiene and Public Health.

Klaus L. Cappel, principal engineerin the Franklin Institute's AppliedMechanics Laboratory, has been namedmanager of the institute's new Aero-space Laboratory.

Steven J. Taussig, a chemical engi-neer in Rumania until his arrival inthe United States last year, has beennamed technical director of PacificLaboratories, Inc., Honolulu.

Felix Morley, chairman of the trus-tees of the Institute for Social ScienceResearch, Washington, D.C., has wonthe $15,000 1961 William Volker Dis-tinguished Service award.

Arthur H. Compton, Nobel laureate,has retired as professor of natural phil-osophy at Washington University to ac-cept an appointment as professor-at-large of the University of California.

Recent Deaths

J. R. B. Hutchinson, 58; consultantin cardiology at Arlington Hospital,Va., and vice president of Acacia Mu-tual Life Insurance Co.; 1 Aug.

Nortnan Jolliffe, 60; director of theNew York Department of Health's bu-reau of nutrition since its creation in1949; 1 Aug.A. W. McCullough, 60; professor of

anatomy at the University of ArkansasMedical Center; 19 July.Norman E. Phillips, 67; head of the

department of zoology at the Univer-sity of Maryland until his retirement in1955; 1 Aug.

Erratum: The Xth International Congress ofthe History of Science will be held at CornellUniversity, Ithaca, New York, from 26 Augustto 31 August 1962 and at the American Philo-sophical Society in Philadelphia from 31 Augustto 2 September 1962. The closing date for thesubmission of abstracts is 1 May 1962. All cor-respondence should be directed to the Secretary,Xth International Congress of the History ofScience, Cornell University, Ithaca, New York.This meeting has been erroneously listed in theForthcoming Events section of recent issues.

SCIENCE, VOL. 134

representations of the Lorentz group.Character tables are supplied for thepermutation group (up to S7) as wellas for the point groups. Included, aswell, are abbreviated descriptions of allof the 230 crystallographic spacegroups.When it comes to the applications

of these groups to specific physicalproblems, the book seems at its verybest. There are chapters discussing theapplication to normal modes of vibra-tion, to electron energy levels in crys-tals, to equations invariant under theEuclidean group of motions and thoseinvariant under the Lorentz group, tosecond order phase transitions, and tonuclear reactions, among others.

The book is suitable for a graduate-level course, and to this end, problemsare provided to illustrate the subjectmatter. This course would have to fol-low a course in quantum mechanics,since the author assumes a knowledgeof quantum mechanics throughout.

G. F. KOSTERDepartment of Physics,Massachusetts Institute of Technology

New Books

Biological and Medical Sciences

Advances in Morphogenesis. vol. 1. M.Abercrombie and Jean Brachett, Eds. Aca-demic Press, New York, 1961. 458 pp.Illus. $12.50.

Advances in Thyroid Research. Trans-actions of the Fourth International GoitreConference. Rosalind Pitt-Rivers, Ed. Per-gamon, New York, 1961. 550 pp. Illus.$20.Annual Review of Plant Physiology.

vol. 12. Leonard Machlis and Winslow R.Briggs, Eds. Annual Reviews, Palo Alto,Calif., 1961. 509 pp. Illus. + plates. $7.

Antibiotica et Chemotherapia. vol. 9.0. Gsell and R. L. Mayer, Eds. Karger,New York, 1961. 188 pp. Illus. $11.

Asphalts and Allied Substances. Theiroccurrence, modes of production, uses inthe arts, and methods of testing. vol. 2,Industrial Raw Materials. Herbert Abra-ham. Van Nostrand, Princeton, N.J., ed. 6,1961. 351 pp. Illus. $10.75.

Atlas of Human Anatomy. Franz Frohse,Max Brodel, and Leon Schlossberg. Barnesand Noble, New York, ed. 6, 1961. 190pp. Illus. $2.95.

Basic Physiology. Fred E. D'Amour.Univ. of Chicago Press, Chicago, Ill., 1961.664 pp. Illus. $7.95.A Biology of Crustacea. James Green.

Quadrangle Books, Chicago, 1961; 195pp. Tllus. $5.75.

Bird Study. Andrew J. Berger. Wiley,New York, 1961. 400 pp. Illus. $9.

Cell Heredity. Ruth Sager and FrancisJ. Ryan. Wiley, New York, 1961. 422 pp.Illus. $7.50.

382

Cell Mechanisms in Hormone Produc-tion and Action. Memoir of the Societyfor Endocrinology, No. 11. P. C. Williamsand C. R. Austin. Cambridge. Univ. Press,New York, 1961. 183 pp. Illus. + plates.$7.50. Proceedings of a symposium held3-4 May 1960.

Comparative Physiology of Carbohy-drate Metabolism in Heterothermic Ani-mals. Arthur W. Martin, Ed. Univ. ofWashington Press, Seattle, 1961. 151 pp.Illus. + plates. Paper, $3.50; cloth, $4.50.Dynamics of Even-Aged Forest Stands.

M. S. Czarnowski. Louisiana State Univ.Press, Baton Rouge, 1961. 145 pp. Illus.$5.

Mathematics, Physical Sciences,and Engineering

Atomic Energy Waste. Its nature, use,and disposal. E. Glueckauf, Ed. Inter-science, New York; Butterworths, Lon-don, 1961. 431 pp. Illus. $14.The Book on Games of Chance (Liber

de Ludo Aleae). Gerolamo Cardano.Translated by Sydney H. Gould. Holt,Rinehart, and Winston, New York, 1961.62 pp. Illus. $1.50. Reprinted from Car-dano: The Gambling Scholar (PrincetonUniv. Press, 1953).Dynamic Analysis of Machines. Joseph

E. Shigley. McGraw-Hill, New York,1961. 314 pp. Illus. $7.50. Companionvolume to Shigley's Analysis of Mecha-nisms, 1959.

Evaluation In Mathematics. Twenty-sixth yearbook. National Council ofTeachers of Mathematics, Washington,D.C., 1961. 222 pp. Illus. $3.Fundamentals of Modern Physics. Rob-

ert Martin 'Wisberg. Wiley, New York,1961. 742 pp. Illus. $10.50.Gases at High Densities and Tempera-

tures. Yu. N. Ryabinin. Translated by H.K. Zienkiewicz. Pergamon, London, 1961.60 pp. Illus. $4.50.

General Relativity and GravitationalWaves. J. Weber. Interscience, New York,1961. 207 pp. Illus. Paper, $2.50; cloth,$4.50.Heat Transfer. Benjamin Gebhart. Mc-

Graw-Hill, New York, 1961. 464 pp. Illus.$10.75.An Introduction to the Principles of

Communication Theory. John C. Han-cock. McGraw-Hill, New York, 1961.263 pp. Illus. $9.50.

Mechanical Engineering Experimenta-tion. G. L. Tuve. McGraw-Hill, NewYork, 1961. 524 pp. Illus. $8.

Nuclear Reactor Theory. Garrett Birk-hoff and Eugene P. Wigner, Eds. Ameri-can Mathematical Soc., Providence, R.I.,1961. 344 pp, Illus. Proceedings of thesociety's 11th symposium in applied math-ematics.

Partial Differential Equations and Con-tinuum Mechanics. Rudolph E. Langer.Univ. of Wisconsin Press, Madison, 1961.412 pp. Illus. $5. Proceedings of an inter-national conference conducted by- theMathematics Research Centex at the Uni-versity of Wisconsin, 7-15 June 1960.

Polymeric Materials. Charles C. Wind-ing and Gordon D. Hiatt. McGraw-Hill,New York, 1961. 416 pp. Illus. $12.Powder Metallurgy. Werner Leszynski,

Ed. Interscience, New York, 1961. 862

pp. Illus. $25. Proceedings of an interna-tional conference held 13-17 June 1960;sponsored' by the Metallurgical Societyand the American Institute of Mining,Metallurgical, and Petroleum Engineers.

Principes de Radiocristallographie. Iden-tification des corps de d6terminations deleur structure par la diffraction des rayonsX. Jean Barraud. Masson, Paris, 1960. 236pp. Illus. NF. 42.

Problems in Quantum Mechanics. I. I.Gol'dman, V. D. Krivchenkov, V. I. Ko-gan, and V. M. Galitskii. Translated andedited by D. ter Haar. Academic Press,New York, 1961. 394 pp. Illus. $12. Con-tains all the problems from the Gol'dman-Krivchenkov text, as well as a selectionfrom the Kogan-Galitskii volume.

Radioactive Substances. Marie Curie.Philosophical Library, New York, 1961.94 pp. Illus. $2.75. A translation of thethesis presented to the Faculty of Science(Paris) by Marie Curie.

Semiconductor Devices and Applica-tions. R. A. Greiner. McGraw-Hill, NewYork, 1961. 507 pp. Illus. $12.50.

Space Astrophysics. William Liller, Ed.McGraw-Hill, New York, 1961. 280 pp.Illus. $10. Fifteen lectures delivered atthe University of Michigan, 1959-60.Theory of Machines. pt. 1, Kinematic

Analysis of Mechanism; pt. 2, DynamicAnalysis of Machines. Joseph EdwardShigley. McGraw-Hill, New York, 1961.671 pp. Illus. $11.50.

Theory of Microwave Valves. S. D.Gvozdover. R. C. Glass, Ed. Translatedfrom the Russian by Walter P. A. Hass.Pergamon, New York, 1961. 499 pp.$12.50.Thermodynamics. With quantum statis-

tical illustrations. P. T. Landsberg. Inter-science, New York, 1961. 509 pp. Illus.$14.50.Time-Harmonic Electromagnetic Fields.

Roger F. Harrington. McGraw-Hill,New York, 1961. 491 pp. Illus. $13.50.

Transistor Logic Circuits. Richard B.Hurley. Wiley, New York, 1961. 379 pp.Illus. $10.

Treatise on Analytical Chemistry. vol.1, pt. 2, Analytical Chemistry of the Ele-ments. I. M. Kolthoff and Philip J. Elving,Eds. Interscience, New York, 1961. 492pp. Illus.

Turbulence. Classic papers on statisti-cal theory. S. K. Friedlander and Leon-ard Topper, Eds. Interscience, New York,1961. 196 pp. Illus. $6. Twelve papersreprinted from various sources, all pub-lished prior to 1950.The Use of Organic Reagents in Inor-

ganic Analysis. A. I. Busev and N. G.Polianskii. Translated from the Russianby J. T. Greaves. Pergamon, New York,1960. 83 pp. $3.50.Vertebrate Biology. Robert T. Orr.

Saunders, Philadelphia, Pa., 1961. 410 pp.Illus.

Vorlesungen Ueber Funktionalgleichun-gen und Ihre Anwendungen. J. Aczel.Birkhauser, Basel, Switzerland, 1961. 331pp. DM. 37.50.The World of Geology. L. Don Leet

and Florence J. Leet, Eds. McGraw-Hill,New York, 1961. 271 pp. Illus. $4.95.

X-ray Analysis of Organic Structures.S. C. Nyburg. Academic Press, New York,1961. 446 pp. Illus. $13.

SCIENCE, VOL. 134

APPLICATION FOR HOTEL RESERVATIONS128th AAAS MEETING

Denver, 26-31 December 1961The hotels for the AAAS Denver meeting have established special, low rates and have reserved appropri-

ately large blocks of rooms for this meeting. Thus everyone making room reservations for the AAAS meeting isassured substantial savings.

The list of hotels and the reservation coupons below are for your convenience in making your hotel reser-vation in Denver. Please send your application, not to any hotel directly, but to the AAAS Housing Bureauin Denver and thereby avoid delay and confusion. The experienced Housing Bureau will make assignmentspromptly; a confirmation will be sent you in two weeks or less.

If requested, the hotels will add a comfortable rollaway bed to any room, at $3.00 per night. Mail yourapplication now to secure your first choice of desired accommodations. All requests for reservations must givea definite date and estimated hour of arrival, and also probable date of departure.

AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIEN4CEFor a list of the headquarters of each participating society a nd section, see page 197, Science, 21 July. The Hilton is theAAAS headquarters hotel.

Rates for Rooms with Bath*Hotel Single Double Double Twin Beds Twin Beds Studio Suitesfor one for one for two for one for two Twins

Hilton $8.50 $10.00 $14.00 $14.00 $15.00 $27.00 to $55.50Brown Palace 8.00 9.00 13.00 $10.00 15.00 24.00 to 65.00Cosmopolitan 8.50 9.00 13.00 10.00 14.00 25.00 to 60.00Shirley Savoy 7.50 10.00 9.00 12.00 25.00 to 40.00

* All rooms are subject to a 2% Colorado State sales tax.

THIS IS YOUR HOUSING RESERVATION COUPON-- -AAAS Housing Bureau225 West Colfax Avenue Date of Application.Denver 2, Colorado

Please reserve the following accommodations for the 128th Meeting of the AAAS in Denver, 26-31 December 1961:

TYPE OF ACCOMMODATION DESIRED

Single Room ........... Double-Bedded RoomT Roo. Stdi.......... Twin-Bedded Room ........... StudioTwins .

Suite . Desired Rate ......... Maximum Rate .

Number in party ............ Sharing this room will be: .

(Attach list if this space is insufficient. The name and address of each person, including yourself, must be listed.)

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

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

First Choice Hotel .................. Second Choice Hotel . .Third Choice Hotel..................

DATE OF ARRIVAL. ............... .......... DEPARTURE DATE.(These must be indicated-add approximate hour, A.M. or P.M.)

NAM(E ......................................................................................................................r

ADDRESS .. ..... ........................................................(Street) (City and Zone) (State)

Mail this now to the Housing Bureau. Rooms will be assigned and confirmed in order of receipt of reservation.

11 AUGUST 1961 - 395

The 1 1 th

NATIONALCHEMICAL EXPOSITION

will be held in the

CHICAGO AMPHITHEATRESEPTEMBER 5-8, 1961

at the time of the 146thnational meeting of the

AMERICAN CHEMICALSOCIETY

Everything that's new in thechemical process industries,-chemicals, equipment, appara-

tus, services -plus a series ofoutstanding special exhibits, theTrail Blazers of Chemistry, Art

and Photographic Exhibits bychemists, etc.

PLAN TO ATTEND!For information about booth space avail-able, and for entry forms and admissiontickets, write

National

Chemical ExpositionChicago Section ACS

86 E. Randolph St., Chicago 1, Ill.

FRanklin 2-1123

New ProductsThe information reported here is obtained from

manufact_rers and from other sources consideredto be reliabl. Neither Science nor the writer as-

sumes responsibility for the accuracy of the in-formation. All inquiries concerning items listedshould be addressed to the manufacturer. In-clude the department number in your inquiry.

Pulse height analyzers, models 402and 404, are 400-channel instrumentscapable of accepting two and four in-dependent inputs, respectively. Countcapacity per channel is 10' in bothmodels with 106 count capacity option-ally available. Each input has its own

amplifier and associated gain control.Input pulse polarity must be negativeand can cover the range of 0 to 50mv. The entire channel capacity can

be used for a single input if desired.A common analog-to-digital converteris utilized for all inputs. Should twoor more inputs arrive simultaneously,all information is rejected. The ana-

lyzers use magnetic-core memorieswith data stored in parallel binary-coded decimal form, thus avoiding theneed for an auxiliary binary-to-decimaldecoder. Memory packages are madeup of either 20 or 24 planes (cor-responding to 10' or 106 counts per

channel) with 400 cores mounted on

each plane.The pulse amplitude spectrum is

displayed as it is being accumulated on

a built-in cathode-ray oscilloscope.After accumulation, the display can

be presented on either a log or linearbasis. On log display, the verticalscale covers 5 decades. On linear dis-play, full scale can be switched from100 to 100,000 counts in four steps.Horizontal expansion is also pro-

vided. Alternate groups of ten chan-nels are intensified for identification.Spectra in 100- or 200-channel sub-groups may be overlapped. Provision ismade for a variety of permanent-recordreadouts. The complete instrumentsoccupy 1 fte and weigh 20 lb. (Tech-nical Measurement Corp., Dept. Sci-265, 441 Washington Ave., NorthHaven, Conn.)

Temperature integrator designed torecord storage conditions of frozenfood operates on electrochemical prin-ciples. The device is about the size andshape of a cigarette. To start its action,the indicator is squeezed to break a

capsule of solution inside. The solu-tion connects two dissimilar metal elec-trodes allowing the electrochemical re-

action to start. Progress of the reac-

tion is indicated by change of color

396

of an indicator paper. The change,from yellow to red, progresses fromone electrode to the other. In the pres-ent device, the red zone moves the fulllength of the scale in about 20 days at20°F, 2 mo at 15°F, 6 mo at 10°F,and in more than 1 yr at 0°F. At25°F the indicator will travel the fullscale in a couple of days. (Minneapolis-Honeywell Regulator Co., Dept. Sci-276, 2747 4th Ave. S., Minneapolis 8,Minn.)

Event programmer can schedule upto eight separate events to occur attime intervals which are from 100msec to 5 sec apart. Provision is madefor remote starts and emergency resetis possible at any time. Each time in-terval is individually set with accuracysaid to be +5 percent of dial setting.(Atlantic Research Corp., Dept. Sci-278, Alexandria, Va.)

Reference junction box accommo-dates as many as 51 pairs of thermo-couple wires in addition to the pairthat is used to monitor the box tem-perature. Junctions are made by usingtapered plastic sleeves that wedge eachthermocouple wire into a separateheat-sink socket. The wires are joineddirectly to copper within the heat sink.Junction temperature is controlled at1500F. (Research Incorporated, Dept.Sci268, P.O. Box 6164, Minneapolis24, Minn.)

Servo analyzer is available in threemodels covering the frequency ranges0.1 to 100 cy/sec, 0.01 to 100 cy/sec,and 0.001 to 100 cy/sec, with sine-wave or square-wave modulated orunmodulated output. The analyzersprovide direct reading phase and am-plitude measurements. An internal car-rier with 20-watt output is providedto operate servo-system components.The unit also operates from an exter-nal carrier of 45 to 4600 cy/ sec; spe-cial provision can be made for carrierand modulation frequencies up to 20kcy/ sec. Accuracies are said to be:amplitude, +2 percent of full scale;frequency, ±2 percent of decade range;phase, ± 1 deg. (Remanco Inc., Dept.Sci27 1, 1805 Colorado Ave., SantaMonica, Calif.)

Digital module (Fig. 1) is based on43/8- by 4½/2-in. circuit cards. Eachcard contains four transistorized cir-cuits that can be connected as flip flops,one shots, and logic gates. Cards canbe interconnected to form counters, shift

SCIENCE, VOL. 134I l

Fig. 1. Digital module.

registers, arithmetic units, or other log-ical units. Each transistor output candrive ten inputs at rates from 0 to 200kcy/sec; standard levels are 0 and -12volts. Compatible system elementsavailable include clock, relay driver,card cage, and power supply. (Com-puter Logic Corp., Dept. Sci248, 11800W. Olympic Blvd., Los Angeles 64Calif.)

A pilot-size molecular still (Fig. 2)has three complete distillation unitscoupled in series. The units are capableof acting as preheaters, degassers, andstrippers, as well as distilling the majorcompound. Automatic operation is pro-vided by recorders monitoring eachcontrol factor. Molecular weight rangeis 250 to 4000; capacity is 10 to 300lb/hr. (Arthur F. Smith, Inc., Dept.Sci252, 311 Alexander St., Rochester4, N.Y.)

Fig. 2. Molecular still.11 AUGUST 1961

Microwave phase meter is a direct-reading instrument for the frequencyrange 300 to 4000 Mcy/sec. Operationof the instrument is based on square-law response to a standing-wave pat-tern, the pattern being the resultant ofthe two signals whose relative phaseis being measured. Resolution is saidto be 0.10 at the microwave frequency.An output is provided for use as anerror signal for automatic phase con-trol. The instrument can be adaptedfor swept-frequency operation withautomatic recording. (Wiltron Co.,Dept. Sci274, 717 Loma Verde Ave.,Palo Alto, Calif.)

Rubidium spectral lamp is a high-intensity light source for research withoptically pumped resonance systems.The lamp consists of a precise amountof alkali metal and noble gas in a trans-parent bulb mounted in the inductivewinding of a free-running, 1 00-Mcy/sec excitation oscillator. The lamp pro-vides a high-photon flux at a highsignal-to-noise ratio. The only noisepresent is said to be substantially thefundamental limiting optical photonshot noise of the discharge. Potassium,cesium, sodium, and mercury dischargebulbs are also available on special re-quest. (Varian Associates, Dept. Sci257,611 Hansen Way, Palo Alto, Calif.)

Coil tester measures the number ofturns on coils without a core and oncoils wound on open ferromagneticcores protruding from the coil. Ac-curacy is said to be ±0.1 percent. Thedevice detects short-circuited turnsequal to or larger than one turn ofNo. 25 AWG copper wire and checkson the correct amount of short-cir-cuited layers used for time delay onrelays. The number of turns is meas-ured by comparing the voltages inducedby a common flux in the coil to bemeasured and in a reference coil.(Maxim Controls Co., Dept. Sci277,4734 North Albina Ave., Portland,Ore.)

Infrared spectrophotometer scans thespectrum from 2.5 to 15 M in 3 min. Afull 1 2-min scan is available at thethrow of a switch. The instrument is adouble-beam spectrophotometer with asodium chloride prism. Spectra are re-corded on notebook-size paper. (Perkin-Elmer Corp., Dept. Sci262, Norwalk,Conn.)

JOSHUA STERNNational Bureau of Standards,Washington, D.C.

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AAAS Symposium Volume No. 61

BIOLOGICAL AND CHEMICAL CONTROLOF PLANT AND ANIMAL PEST

Editor L. P. Reitz April 1960274 + xii pp., 11 illus., 11 tables, 6 x 9, index

references, clothPrice $5.75; AAAS members' prepaid orders

$5.00Presented by the Section on Agriculture at the Indian-

apolis meeting, AAAS, 28-30 December 1957

. . . The Public's Stake in Pest Control

. . . Recent Advances in Chemical Control

. . . Biological Control of Pests

. . . Nineteen topics of importance about pestcontrol ranging from quarantine and healthproblems to control of pests with chemicalsand genesEnglish Agents: Bailey Bros. & Swinfen, Ltd.

Hyde House, West Central StreetLondon W.C.1, England

AMERICAN ASSOCIATION FOR THEADVANCEMENT OF SCIENCE1515 Massachusetts Avenue, NW

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SCIENCE, VOL. 134

MeetingsForthcoming Events

August

30-1. Bionics Symp., 2nd annual, Ithaca,N.Y. (R. Earle, G.E. Advanced ElectronicsCenter, Ithaca)

30-1. Semiconductor Conf., 3rd annual,Los Angeles, Calif. (W. V. Wright,Electro-Optical Systems, Inc., 125 N.Vinedo Ave., Pasadena, Calif.)

30-2. American Sociological Assoc., St.Louis, Mo. (T. Parsons, Dept. of SocialRelations, Harvard Univ., Cambridge,Mass.)

30-2. Experimental Research on ShellStructures, colloquium, Delft, Nether-lands. (A. L. Bouma, Dept. of Civil En-gineering, Technological Univ., Delft)

30-5. Mental Health, 6th intern. congr.,Paris, France. (Miss E. M. Thornton,World Federation for Mental Health, 19Manchester St., London, W.1, England)

30-6. British Assoc. for the Advance-ment of Science, 123rd meeting, Norwich,England. (Secretary, BAAS, 18 AdamSt., London, W.C.2, England)

31-2. Exfoliative Cytology, intern.congr., Vienna, Austria. (Office of theSecretary of the Congress, 666 Elm St.,Buffalo 3, N.Y.)

31-2. Gynaecological Cytology, 1st in-tern. congr., Vienna, Austria. (R. M.Graham, Roswell Park Memorial Inst.,666 Elm St., Buffalo 3, N.Y.)

31-4. Preventive and Social Medicine,meeting, Evian, France. (Societe Fran-caise de Medecine Preventive et Sociale,1 rue de Courcelles, Paris 8, France)

31-6. American Psychological Assoc.,69th annual, New York, N.Y. (J. G.Darley, 1333 16th St., NW, Washington 6)

September

1-5. Danube Research, intern. symp.,Budapest, Hungary. (Biological SciencesGroup, Hungarian Acad. of Sciences,Roosevelt Ter. 9, Budapest V)

1-9. Topology and Its Methods in OtherMathematical Disciplines, symp., Prague,Czechoslovakia. (Organizing Committee,Ke Karlovu 3, Prague 2)

1-10. International Pharmaceutical Stu-dents' Federation, 7th congr., Munich,Germany. (U. Peto, 10 Groffstr., Munich19)2-7. International Assoc. for Quater-

nary Research, Warsaw, Poland. (R.Galon, Secretary General, INQUA, Geo-graphical Inst. Univ., Torun, Poland)

2-9. International Soc. of Surgery, 19thcongr., Dublin, Ireland. (T. C. J. O'Con-nell, 35 Fitzwilliam P1., Dublin)

3-7. International Assoc. for HydraulicResearch, 9th congr., Belgrade, Yugosla-via. (H. J. Schoemaker, WaterloopkundigLaboratorium, Raam 61, Delft, Nether-lands)

3-8. American Chemical Soc., 140thmeeting, Chicago, lll. (A. T. Windstead,National Meetings Dept., ACS, 1155 16St., NW, Washington 6)

3-9. International Federation of Gy-naecology and Obstetrics, 3rd world congr.,Vienna, Austria. (V. Griinberger, Medi-11 AUGUST 1961

zinische Akademie, Alserstrasse 4, Vienna9)

3-10. Inter-American Congr. of Radiol-ogy, 7th, Sao Paulo, Brazil. (W. Bomfim-Pontes, Rua Cesario Motta 112, SaoPaulo)

4. World Federation for Mental Health,14th annual, Paris, France. (WFMH, 19Manchester St., London, W. 1, England)

4-6. International Assoc. for ShellStructures, colloquium, Brussels, Belgium.(Prof. Dutron, 127 Avenue Adolphe Buyl,Brussels 5)

4-6. International Symp. on the EarthStorm, Kyoto, Japan. (T. Nagata, ScienceCouncil of Japan, Ueno Park, Tokyo)

4-7. Neuropathology, 4th intern. congr.,Munich, Germany. (W. Haymaker, ArmedForces Inst. of Pathology, Walter ReedArmy Medical Center, Washington 25)

4-7. Rheumatology, 10th intern. congr.,Rome, Italy. (C. B. Ballabio, ClinicaMedica Generale, Via F. Sforza 35, Milan,Italy)

4-8. Low Energy Nuclear Physics,intern. conf., Manchester, England. (L. J.B. Goldfarb, Physics Dept., Univ. of Man-chester, Manchester)

4-8. Pharmaceutical Sciences, 21stintern., congr., Pisa, Italy. (Intern. Phar-maceutical Federation, 11 Alexander-straat, The Hague, Netherlands)

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4-8. Plasma Physics and ControlledNuLclear Fusion Research. conf., Salzburg,Austria. (Intern. Atomic Energy Agency,United Nations, New York, N.Y.)

4-9. International Assoc. for AnalogComputation. 3rd intern. sessions. Bel-grade, Yugoslavia. (D. Strujic, Decan-ska 14/ IV, Belgrade)

4-9. International Congr. of Angiology,4th, Prague, Czechoslovakia. (Z. Reinis,4th Medical Clinic. Prague 2/499)

4-9. International Symp. on FuLnda-mental Problems in TurbUlence and TheirRelation to Geophysics (by invitation).Marseilles, France. (Intern. Union ofGeodesy and Geophysics, 53 AvenuLe deBreteuil. Paris 7)

4-9. Laurentian Hormone Conf., Ho-berg's Resort, Lake Cotunty, Calif. (Com-mittee on Arrangement of the LaurentianHormone Conference. 222 Maple Ave.,ShrewsbuLry, Mass.)

4-1). Inter-African Conf. for Food andNutrition, 4th. BLkiavuL. Congo Republic.(Commission for Technical Cooperation inAfrica South of the Sahara, Pvt. Mail Bag2359, Lagos, Niger-ia)

4-14. Anglo-American AeronauticalConf., 8th. London. England. (Inst. ofAerospace Sciences, 2 E. 64 St., New York,N.Y.)

5-8. International Congr. of Homeo-pathic Medicine. 25th, Amsterdam, Nether-lands. (J. L. Fonteijn, Westzijde 116.Zaandam, Netherlands)

5-8. Machine Translation of Languagesand Applied Langtuage Analysis, intern.conf., Teddington. England. (L. Dostert.

Director, Machine Translation Research,Georgetown Univ., 1715 MassachusettsAve., NW, Washington 6)

5-8. National Chemical Exposition,I th. Chicago, Ill. (Chicago Section,American Chemical Soc., 86 E. RandolphSt.. Chicago 1)

6-8. Effects of Ionizing Radiations on1ImmuLne Processes, intern. symp., Lawr-ence, Kan. (C. A. Leone, Dept. of Zool-ogy. Univ. of Kansas, Lawrence)

6-8. Transmission and Processing ofInfornation, intern. svmp.. Boston. Mass.(R. M. Fano. Resear-ch Laboratory ofElectronics, Massachusetts Inst. of Tech-nology. Cambridge 39)

6-12. Human Genetics, 2nd intern.conf., Rome, Italy. (L. Gedda, 5 PiazzaGaleno. Rome)

7-8. Pacific Slope Biochemical Conf..annuLal, San Diego, Calif. (R. G. Wolfe.Chemistry Dept., Univ. of Oregon.Etigene)

7-9. International Cardiovascular Soc..5th congr., DuLblin, Ireland. (H. Haimovici.715 Par-k Ave., New York 2 1)

7-9. Parapsychological Assoc., 4th an-nual congr., New York, N.Y. (C. B. Nash,St. Joseph's College, Philadelphia, Pa.)

7-10. Science News Writing Seminar.Colorado State Univ., Fort Collins. (M.G. Payne, Colorado State Univ., ResearchFoundation, Fort Collins)

7-11. EuLropean Orthodontic Soc.. 37thcongr., Bologna, Italy. (N. Gray, 16 Col-lege Rd., Eastbourne. SuLssex. England)

7-12. NeuLrogenetics. symp.. Rome.Italy. ( l. Gedda, InstituLto Gregorio

Mendel, Viale Regina Margherita 261,Rome)

7-13. Electroencephalography and Clini-cal NeLurophysiology, 5th intern. congr..Rome, Italy. (R. Vizioli. Viale Universita30, Rome)

10-14. Tuberculosis Conf., 16th intern.,Toronto, Canada. (C. W. L. Jeanes, 265Elgin St.. Ottawa. Ont.. Canada)

10-15. Neurology, 7th intern. congr.,Rome, Italy. (G. Alema, Viale Universit30, Rome)

10-17. International Union of ForestResearch Organizations. 13th congr..Vienna, Austria. (Forest Research Inst.,IUFRO Bureal, Vienna 89)

11-13. EuLropean Organization forQuLality Control. 5th congr.. Turin. Italy.(Weena 700, Rotterdam, Netherlands)

1 1-14. International Flax and HempFederation, 12th congr., Lisbon, PortuLgal.(IFHF, 37 rue de Courcelles, Paris 8)

11-15. Cosmic Rays. 7th intern. conf..Kyoto, Japan. (Y. Sekido. Science Coun-cil of Japan. Ueno Park. Tokyo)

1 -15 Cybernetics, 3rd intern. congr..NamuLr, Belgium. (Intern. Assoc. forCybernetics, 13 rtue Basse-Marcelle,Namu r)

11-15. Instrumnent Soc. of America.instrument-automation conf. and exhibit.16th, Los Angeles, Calif. (W. H. Kush-nick, 313 Sixth Ave.. PittsbuLrgh 22, Pa.)

1-15. Marine Sciences lnstrumentation.symp., Woods Hole. Mass. (D. D. Ket-chum. Woods Hole Oceanographic InstituL-tion, Woods Hole. Mass.)(See issuxe of 21 JulY for cmr055/e5heii.viv e list)

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