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SCIENCE TO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments and equipment. The Guide will provide scientists with the names of manufacturers of products used for research in analytical chemistry, med- ical electronics, physics, nuclear and ra- diation sciences, biology, oceanography, and geology. Approximately 80,000 copies of this We will send you promptly a listing form and a complete list of the categories to be included. Guide will be sent to research scientists working in the fields mentioned above, to purchasing departments, and to li- braries. It is the intention of the editors to make this directory of instrument man- ufacturers as complete as possible. There is no charge for listings. If your company manufactures products which are used in the fields mentioned above, and you have not as yet received an official listing form, you can obtain one by writing to: SCIENCE Magazine esearch Equipment Guide 1 West 42 Street New York 36, N.Y. The rules for determining which manufacturers will be listed are given below. RULES GOVERNING LISTINGS 1. Any manufacturer of a product used in research in the fields mentioned above is eligible for a listing. 2. Only products currently in production will be listed. 3. All requests for listings must be accompanied by descriptive literature. 4. All requests for listings must be made on the official listing form. (See instructions above if you have not received an official form.) 5. Special categories will be added when justification exists. 6. Dealers and distributors will be listed only under products which they themselves manufacture. 7. CLOSING DATE FOR ALL LISTINGS IS 14 AUGUST. All forms must be in our hands by that date. 8. The directory will appear in the annual Instrument Issue of Science. 9. Advertising will be accepted at regular rates. Closing date for advertising is 1 September. SCIENCE, VOL. 137llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll -3 A - 304 SCIENCE. VOL. 137

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Page 1: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

SCIENCE TO PUBLISH

GUIDE TO

SCIENTIFIC

INSTRUMENTS

In October of this year, Science will pub-lish a Guide to the manufacturers of

scientific instruments and equipment. TheGuide will provide scientists with thenames of manufacturers of products usedfor research in analytical chemistry, med-ical electronics, physics, nuclear and ra-

diation sciences, biology, oceanography,and geology.

Approximately 80,000 copies of this

We will send you promptly a

listing form and a complete listof the categories to be included.

Guide will be sent to research scientistsworking in the fields mentioned above,to purchasing departments, and to li-braries. It is the intention of the editorsto make this directory of instrument man-

ufacturers as complete as possible.There is no charge for listings. If your

company manufactures products whichare used in the fields mentioned above,and you have not as yet received an

official listing form, you can obtain oneby writing to:

SCIENCE Magazineesearch Equipment Guide1 West 42 StreetNew York 36, N.Y.

The rules for determining which manufacturers will be listed are given below.

RULES GOVERNING LISTINGS1. Any manufacturer of a product used in research in the fields mentioned above is

eligible for a listing.

2. Only products currently in production will be listed.

3. All requests for listings must be accompanied by descriptive literature.

4. All requests for listings must be made on the official listing form. (See instructionsabove if you have not received an official form.)

5. Special categories will be added when justification exists.

6. Dealers and distributors will be listed only under products which they themselvesmanufacture.

7. CLOSING DATE FOR ALL LISTINGS IS 14 AUGUST. All forms must be in our handsby that date.

8. The directory will appear in the annual Instrument Issue of Science.

9. Advertising will be accepted at regular rates. Closing date for advertising is 1

September.

304 SCIENCE, VOL. 137llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

-3

A

-

304 SCIENCE. VOL. 137

Page 2: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

-I-io

0 II II I II II

THE NEW PACKARD TRI-CARBW FLOW MONITOR/FLOW DETECTOR SYSTEMS . . . add another dimen-sion to liquid and gas chromatography. With them,the research scientist can obtain an immediate radioassay of components in an effluent stream, withoutthe need for time consuming analysis of individualsamples. Radioactivity passing through the detectoris indicated immediately, and each run may berecorded graphically or digitally.Three types of Flow Detector, four types of

spectrometer and two types of data presentation are

available to design an integrated system. Dual

SCIENCE. VOL. 137310

Page 3: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

moon, including landing, and returnflight, and environmental conditions onthe moon's surface.The project, which is expected to be

completed in nine months, will be di-rected by Jorgen Jensen, senior authorof "Design Guide to Orbital Flight," aMartin Company manual published lastyear by McGraw-Hill.

Scientists in the News

Richard L. Garwin, associate pro-fessor of physics at Columbia Uni-versity, has been appointed to thePresident's Science Advisory Commit-tee.

At the University of California, SantaBarbara:

James F. Case, of the State Univer-sity of Iowa, has been appointed asso-ciate professor of zoology.

Joseph H. Connell, associate profes-sor of zoology, will spend the comingacademic year on sabbatical leave atthe University of Queensland, Brisbane,Australia.

Elmer R. Noble, professor of zool-ogy, will be on sabbatical at the marinelaboratories of the Hong Kong, Tokyo,Kyoto, and Hawaii universities.

Roger R. Noble, research departmentdirector at G. A. Philbrick Researches(Mass.), has been elected president ofNexus Research Laboratory, Inc., ofDedham, Mass., manufacturers of op-

erational amplifiers and related analogmodules.

Robert G. Kelly, former assistantchief of the data systems division atGoddard Space Flight Center, hasjoined Technical Operations' Washing-ton (D.C.) Research Center as directorof the computer applications division.

Wallace Givens, professor of engi-neering science and mathematics atNorthwestern University, will be on

leave during 1962-63 as associate di-rector of Argonne (Ill.) National Lab-oratory's applied mathematics division.

Arthur A. Patchett, formerly assis-tant director of synthetic organic chem-istry at Merck Sharp and Dohme Re-search Laboratories, has been nameddirector, succeeding Lewis H. Sarett,who recently became director of funda-mental research.

330

Robert J. Sunderland, formerly withthe Applied Physics Laboratory ofAerojet's Spacecraft Division, has beenappointed senior research scientist ofMHD Research, Inc.

Col. William C. Athas, former chiefof the Electronics Division in the AirForce Office of Aerospace Research,has been appointed chief of a newElectronics Division in the Directorateof Engineering Sciences of the AirForce Office of Scientific Research. Thedivision will formulate and direct theAir Force program for basic researchin electronics. Athas will also serve asthe Air Force member of the JointServices Electronics Technical Advis-ory Committee. The committee directsthe Joint Services Electronics Programthat was established in 1946 to super-vise university electronics basic re-search programs oriented to Depart-ment of Defense needs.

A. J. Carlan, a former supervisingengineer with Syntron Company, ispresident of the npwly formed PowerComponents, Inc., Scottdale, Pa., afirm specializing in the manufactureof silicon semiconductor and solid-state devices. Herbert Y. Cadoff, ofWestinghouse Electric's atomic powerdepartment, and Ray H. Salinas, ofColumbus Electronics Corporation, arevice-president and production manager,respectively.

Edwin William Schultz, emeritus pro-fessor of bacteriology and experimentalpathology at Stanford University, hasbeen appointed visiting senior scientistin the department of pathology at theOregon Regional Primate ResearchCenter.

Rowland M. VYounger, a MartinCompany engineer, has been nameddirector of the logistics department,Electronic Systems and Products Divi-sion.

Sang U. Choi, professor of chemistryat Yousei University, Seoul, Korea, hasbeen appointed visiting research profes-sor at Boston University's GraduateSchool for the 1962-63 academic year.

Bryant M. Wedge, of Yale Univer-sity's department of psychiatry, has be-come director of the Institute for theStudy of National Behavior, Princeton,N.J.

George H. Lauff, director of the Uni-versity of Georgia's Marine Instituteand associate professor of zoology atthe University of Michigan, has beenelected to the board of trustees of theSapelo Island (Ga.) Research Founda-tion and has accepted the position ofresearch coordinator for the foundation-supported activities.

Donald W. Kerst, director of thermo-nuclear work at John Jay Hopkins Lab-oratory for Pure and Applied Science(Calif.), has been appointed to the new-ly created Earle M. Terry professorshipin physics at the University of Wis-consin.

At the U.S. Naval Ordnance Labo-ratory:

Robert E. Odening, commanding of-ficer of the USS Norfolk, has becomehead of the laboratory, succeedingWalter D. Coleman, who has retired.M. J. Kamlet, of the organic chemis-

try division, is serving a 1-year term asONR's scientific liaison officer (organicchemistry) in London.

Recent Deaths

Ruth C. Christman; edited AAASsymposium volumes since 1950; actingexecutive editor of Science and TheScientific Monthly, 1953; 23 July.

James T. Cummmgs, 44; mathemati-cian at the U.S. Naval Ordnance Lab-oratory, White Oak, Md.; 25 June.

Elias Elvove, 79; retired chemist atthe National Institue of Dental Re-search; 25 June.

Charles R. L. Halley, 66; emeritusprofessor of clinical medicine at GeorgeWashington University School of Medi-cine; 15 July.

Dorothy M. Henika, 59; psychologistand former assistant superintendent ofpublic education for Wisconsin; 25June.

Bernard L. Jarman, 73; first flightsurgeon for the Civil Aeronautics Agen-cy (now Federal Aviation Agency); 15July.

Albert 0. Rhoad, 59; research con-sultant and geneticist for the KingRanch, Kingsville, Tex., and a memberof the National Academy of Sciencesagricultural board; 23 June.

Sister Ignatius Sanche; professor andchairman of the chemistry departmentat the College of Mount Saint Joseph(Ohio); 6 June.

SCIENCE. VOL. 137

Page 4: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

The alert student may be mystifiedby the statement (on page 24) thatmethane decomposes to carbon and hy-drogen above 12000, shortly followed(on pages 37 and 38) by the one thatacetylene and hydrogen can be formedfrom methane in reasonably high yieldat 1400 to 16000, if the exposure timeis short enough. This is an oversimpli-fication that overlooks the importantfactors of surface effects and concen-trations on the complex sequence ofreactions which determine the outcomeof this pyrolysis.The author's choice of compounds

for discussion includes many substancesfound in commerce and a large groupof physiologically active substances.This selection insures the interest ofnurses, predental students, majors inhome economics, majors in agriculture,and similar groups, to whom the text isespecially addressed.

ALSOPH H. CORWINDepartment of Chemistry,Johns Hopkins University

Miscellaneous Publications(Inquiries concerning these publications shouldbe addressed to the publisher or agency spon-soring the publication, not to Science.)

Arctic Aeromedical Laboratory. Tech-nical Note, AAL TN 60-4: "The effect ofdepth of immersion on the responses ofthe finger in ice water," C. J. Eagan (12pp.); AAL TN 60-26: "Alterations in ef-fects of morphine on the cold-acclimatizedanimal," H. Leong Way and H. W. Elliott(16 pp.); AAL TN 60-30: "Arctic fieldevaluation of vapor impermeable glove,flying," K. R. Skrettingland (9 pp.); AALTN 60-32: "Refinements in photoelectricplethysmography," pt. 2, Alrick B. Hertz-man (12 pp.); AAL TN 61-1: "Cardio-vascular effects of refeeding stress follow-ing starvation," pt. 9, G. S. Smith and B.Connor Johnson (10 pp.); AAL TN 61-2:"Mechanism of adaptation to a threonine-deficient diet," pt. 4, Dorothy Arata (3pp.); AAL TN 61-3: "Mechanism of adap-tation to a threonine-deficient diet," pt. 5,Dorothy Arata (6 pp.); AAL TN 61-4:"A new heavy winter flying clothing as-sembly," James H. Veghte and James I.Clogston (9 pp.); AAL TN 61-7: "Evalu-ation of various types of boots in coldenvironments," Kermit R. Skrettingland,James Clogston, James H. Veghte (16 pp.);AAL TN 61-8: "T-33 aircraft survivalcontainer," Paul W. Barnett (6 pp.). Alas-kan Air Command, Fort Wainwright, 1961(order from USAF, APO 731, Seattle).

Australia, Bureau of Mineral Resources,Geology, and Geophysics. Bulletin, No.61, "The molluscan fauna and probablelower Cretaceous age of the Nanutarraformation of Western Australia," L. R.Cox. Department of National Develop-ment, Canberra, 1961. 53 pp.3 AUGUST 1962

Cornell University, Daniel and FlorenceGuggenheim Aviation Safety Center. "Sur-vey of research projects in the field ofaviation safety, 1962 annual supplement,"compiled by R. M. Woodham. The Center,New York, 1962. 23 pp.

Geophysics Research Directorate. AirForce Surveys in Geophysics, No. 140:"Proceedings of the national symposiumon winds for aerospace vehicles design,"vols. 1 and 2; N. Sissenwine and H. G.Kasten, Eds. (vol. 1, 233 pp.; vol. 2, 269pp.). Air Force Cambridge Research Lab-oratories, Bedford, Mass., 1962 (orderfrom Office of Technical Services, Wash-ington, D.C.).

Great Britain, Department of Scientificand Industrial Research. "Register of re-search in the human sciences 1960-1961.DSIR, London, 1962 (order from BritishInformation Services, New York). 123 pp.$2.New York Botanical Garden. Annual

Report, 1961 and Annual Meeting, 22May 1962. New York Botanical Garden,New York, 1962. 48 pp.

Smithsonian Institution, AstrophysicalObservatory. Smithsonian Contributions toAstrophysics, vol. 4, No. 2: "Orbital ele-ments of photographic meteors," RichardE. McCrosky and Annette Posen. Smith-sonian, Washington, D.C., 1961 (orderfrom Superintendent of Documents, GPO,Washington, D.C.). 84 pp. $0.40.

U.S. Geological Survey. Bulletin, No.1110-G, pp. 239-288: "Contributions togeneral geology, geology of the OtterCreek quadrangle, Montana," Roger B.Colton (maps and plates, 1962); No.1123-B, pp. 95-138: "Geology of partsof the upper Mississippi Valley zinc-leaddistrict, geology of the Montfort andLinden quadrangles, Wisconsin," John E.Carlson (maps, 1961). Superintendent ofDocuments, GPO, Washington, D.C.US. National Aeronautics and Space

Administration. "Proceedings of the Inter-national Meteorological Satellite Work-shop, 13-22 November 1961," Hugh L.Dryden and Francis W. Reichelderfer,Chairman. NASA and U.S. Weather Bu-reau, Washington, D.C., 1962 (order fromSuperintendent of Documents, GPO,Washington, D.C.). 226 pp. $1.75.

U.S. National Bureau of Standards.Circular, No. 488, An Ultraviolet Mul-tiplet Table, sect. 3, "The spectra of mo-lybdenum, technetium, ruthenium, rho-dium, palladium, silver, cadmium, indium,tin, antimony, tellurium, iodine, xenon,cesium, barium, lanthanum, hafnium, tan-talum, tungsten, rhenium, osmium, irid-ium, platinum, gold, mercury, thallium,lead, bismuth, polonium, radon, and ra-dium" (94 pp. $0.60); sect. 4, "Findinglist for spectra of the elements hydrogento niobium (Z = 1 to 41)" (65 pp. $0.45);sect. 5, "Finding list for spectra of theelements molybdenum to lanthanum (Z =42 to 57); hafnium to radium (Z = 72 to88)" (30 pp. $0.30). Charlotte E. Moore.Superintendent of Documents, GPO,Washington, D.C., 1962.

U.S. Office of Education. OE-34015:A Guide to Programmed Instructional Ma-terials Available to Educators by Septem-ber 1962. Compiled by the Center forProgrammed Instruction for the Office of

Education. Superintendent of Documents,GPO, Washington, D.C., 1962. 414 pp.Paper, $1.50. Descriptive information andsample frames are provided for each pro-gram, but the programs are not evaluated.

U.S. Office of Naval Research. ONRReport, ACR-64: "Animals and man inspace, a chronology and annotated bibli-ography through the year 1960," DietrichE. Beischler and Alfred R. Fregly. ONR,Washington, D.C., 1962 (order from Officeof Technical Services, Washington, D.C.).97 pp. $2.50.

U.S. Public Health Service. PublicationNo. 919: "Highlights of progress in mentalhealth research, 1961. Prepared by thePublications and Reports Section, Na-tional Institute of Mental Health. Super-intendent of Documents, GPO, Washing-ton, D.C. $0.25.

University of California. Publications inEntomology, Vol. 28, No. 1, pp. 1-124:"A revisional study of the bees of thegenus Perdita F. Smith, with special refer-ence to the fauna of the Pacific coast (Hy-menoptera, Apoidea)," pt. 5, P. H. Tim-berlake ($2.50); Publications in GeologicalSciences, vol. 42, No. 1: "Superposed de-formations in the central Sierra Nevadafoothills, east of the mother lode," Alex-ander K. Baird (69 pp. Maps. $2). Univ.of California Press, Berkeley, 1962.

University of Illinois, Engineering Ex-periment Station. Bulletin, No. 462: "Hy-drologic determination of waterway areasfor the design of drainage structures insmall drainage basins," Ven Te Chow.Univ. of Illinois, Urbana, 1962. 104 pp.$1.50.

University of Texas, Bureau of EcomonicGeology. Publication, No. 6120: "TheOuachita system," Peter T. Flawn et al.(401 pp. Maps. 1961); Report of Investi-gations, No. 43: "Mineral resources ofSouth Texas, region served through theport of Corpus Christi," Ross A. Maxwell(140 pp. Maps. 1962); No. 44: "Strati-graphic names in the Midway and Wilcoxgroups of the Gulf coastal plain," WilliamL. Fisher (reprinted from Transactions ofthe Gulf Association of Geological Socie-ties, vol. 11, pp. 263-295. 1961). The Uni-versity, Austin.World Health Organization. "Radiation

and health" (reprinted from WHO Chron-icle, 1961. 42 pp. $0.30); "WHO and men-tal health 1949-1961 (reprinted fromWHO Chronicle, 1962. 48 pp. $0.30);Technical Report, No. 228: "Evaluationof the toxicity of a number of antimicro-bials and antitoxicants (104 pp. $1.25);No. 231: "Arterial hypertension and is-chaemic heart disease, preventative as-pects" (28 pp. $0.30); No. 232: "Chemo-therapy of cancer" (52 pp. $0.60); No.233: "Expert Committee on Filariasis(Wuchereria and Brugia infections) report,"(52 pp. $0.60); No. 235: "The role of pub-lic health officers and general practitionersin mental health care" (56 pp. $0.60); No.236: "Planning, organization, and admin-istration of a national health laboratoryservice" (48 pp. $0.60); No. 237: "Re-quirements for biological substances. pt. 7.Requirements for poliomyelitis vaccine(oral)" (32 pp. $0.30). WHO, GenevaSwitzerland, 1962 (order from ColumbiaUniv. Press, New York).

335

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AAAS Symposium Volume

OCEANOGRAPHYEdited by Mary Sears.

Second printing: July 1962.665 pages, 146 illustrations,Author and subject indexes.

PRICE: $14.75. For AAAS members,only $12.50, prepaid.

Contents:

HISTORY OF THE OCEANSPOPULATIONS OF THE SEATHE DEEP SEA.BOUNDARIES OF THE SEACYCLES OF ORGANIC ANDINORGANIC SUBSTANCES INTHE OCEAN .........

Order today from

7 chapters6 chapters6 chapters5 chapters

8 chapters

American Association for theAdvancement of Science

1515 Massachusetts Ave., NW, Washington 5, D.C.

I

the RIGAKU LANG CAMERA

T, I

ERB & GRAY SCIENTIFIC, Inc.A division of The Perkin-Elmer Corporation

5927 Riverdale Ave. 1103 Westgate Ave.New York 71, N. Y. Oak Park, Illinois

854 S. Figueroa St., Los Angeles, Calif.350

. to be shown at theDenver Research Institute's

11th Annual Conference

on

'Ii" "Applications of

X-Ray Analysis," Denver,August 8, 9 and 10th

Erb & Gray Scientific, Inc., cordially invites you toexamine the Rigaku Lang Camera and other Rigakudiffraction accessories at our exhibit at the AlbanyHotel, Denver, August 8, 9 and 10th. Technical per-sonnel will be available to discuss the applications ofall Rigaku x-ray equipment. Specifications of theRigaku Lang Camera are as follows: resolution: 1micron or better; accuracy: + 2 seconds, zero lag;camera length: 25 to 250 mm; specimen holder: x-yaxis orientation with goniometer; enlargement: up to500x, photographically. Berg-Barrett topographicalstudies can be made with the versatile new RigakuLang Camera.

SCIENCE. VOL. 137

I"q

Page 6: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

NOWI SERVICEJO4N EiUCAiION LSCIENCE APPARATUS 1

FROM WELCH!

r;;;;~~ ~ -3x~~f0

t ~~~~~~~~~~~~~~~~~~~~~~~~~~~~.... ........ . :::: : E- -Shpet Mad the Sae DaL_eri ecie

The Welch Scientific Company, with the

largest modern factory for producing Educational

Science Apparatus, and the largest complete inventoryof Educational Science Apparatus in the U.S.A., presenttheir new "Jet-Age" Service. The greatly increasedproduction facilities of the new Welch factory makepossible, immediate shipment from stock.When ordering your apparatus, specify the date you

want the order shipped, up to, and including the same

day the order is received at our offices.Welch Apparatus has long been recognized as superior

in quality and performance. Now, you can receive your

order when you want it!

'SINCE _: 'i wwz. UvW~~~~~~~~~~~~~~~r for_-,foremost manufacturers of scientific equipment1515 Sedgwick, Street, Dept. XYZ, Chicago 10, Illinois

E.itI. *. a . I

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

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

3 AUGUST 1962 353

Page 7: GUIDE TO SCIENTIFIC INSTRUMENTS · SCIENCETO PUBLISH GUIDE TO SCIENTIFIC INSTRUMENTS In October of this year, Science will pub- lish a Guide to the manufacturers of scientific instruments

-l S. 6 3

I Mlasnrsk bo UNITRON's Mitroso Catal 4E-1I

I Co I

354I-

354

17-21. Hormones and the Kidney, col-loquium, London, England. (P. C. Wil-liams, c/o Imperial Cancer Research Fund,Burtonhole Lane, London, N.W.7)

17-21. Malacological Congr., London,England. (H. E. J. Biggs, 19 Siward Rd.,Bromley, Kent, England)

17-21. Vector Control, symp., Geneva,Switzerland. (World Health Organization,Palais des Nations, Geneva)

17-22. High-Speed Photography, intern.congr., The Hague, Netherlands. (Con-gress Secretariat, 14 Burgemeester deMonchyplein, The Hague)

17-22. International Brain Research Or-ganization, central committee meeting,Paris, France. (H. H. Jasper, U.N. Edu-cational, Scientific and Cultural Organiza-tion, Place de Fontenoy, Paris 7e)

17-22. International Union Against Tu-berculosis, annual, Paris, France. (IUAT,15 rue Pomereau, Paris 16e)

17-24. History of Medicine, intern.congr., Warsaw and Krakow, Poland. (Or-ganizing Committee, Chocimska 22, War-saw)

17-29. Chromatographic Methods forLipid Research, intern. congr., Milan,Italy. (R. Paoletti, Congres International,V. del Sarto 21, Milan)

18-21. Food Science and Technology,intern. congr., London, England. (F. J.Griffin, 14 Belgrave Square, London,S.W.1)

18-22. Agricultural Aviation, intern.conf., Grignon, France. (P. Journet, Serv-ice de la protection des vegetaux, Min-istere de l'Agriculture, 78 rue de Varenne,Paris 7e, France)

18-23. International Assoc. of Geodesy,Munich, Germany. (J. J. Levallois, IAG,19 rue Auber, Paris 8e)

18-24. Effects of Use and Disuse ofNeuromuscular Functions, Prague-Liblice,Czechoslovakia (by invitation). (Czecho-slovak Acad. of Sciences, Narodny Tr. 5,Prague I)

18-26. Equatorial Aeronomy, intern.symp., Huaychulo, Peru. (A. A. Giesecke,Scientific Program Committee, Apartado3747, Lima, Peru)

18-28. International Atomic EnergyAgency, general conf., Vienna, Austria.(IAEA, 11 Karntner Ring, Vienna I)

19-20. Industrial Electronics, annualsymp., Chicago, Ill. (E. A. Roberts, Comp-tometer Corp., 5600 Jarvis Ave., Chicago48)

19-21. Rocky Mountain Minerals Conf.,Butte, Mont. (Metallurgical Soc. of AIME,345 E. 47 St., New York 17)

19-22. Information Retrieval, seminar,Minneapolis, Minn. (Director, Center forContinuation Study, Univ. of Minnesota,Minneapolis 14)

19-23. Air Force Assoc., conventionand aerospace panorama-weapons meet,intern., Las Vegas, Nev. (Air Force Assoc.,1901 Pennsylvania Ave., NW, Washington6)

20. Surgery of the Hand, intern. conf.,Paris, France. (L. Gosse, c/o H6pital deNanterre, 3 Av. de la Republique, Nan-terre (Seine), France)

20-22. Sulphur Therapy, intern. symp.,Innsbruck, Austria. (K. Weithaler, c/oMedizinische Universitiits Klinik, Inns-bruck)

(See issue of 13 July for comprehensive list)

SCIENCE, VOL. 137

DISC ELEUTROPHORESISFor Research * Clinic * Classroom

TRIAL KITS AVAILABLE-IMMEDIATE SHIPMENTRevolutionary breakthrough in protein separation, using new, speciallyprocessed polyacrylamide gel. Routinely separates 20-30 proteins inhuman serum. 100 times more sensitive than starch gel.

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THE HUMAN INTEGUMENTNORMAL AND ABNORMALEditor: Stephen Rothman 1959

AAAS Symposium Volume No. 54

A 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 incultaneous physiology and pathophys-iology.270 pp., 59 illus., 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

British Agents: Bailey Bros. & Swinfen,Ltd., Hyde House, W. Central Street,

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