Back MatterSource: The Scientific Monthly, Vol. 83, No. 4 (Oct., 1956), pp. 212-viiiPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/21810 .

Accessed: 01/05/2014 16:36

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact support@jstor.org.

.

American Association for the Advancement of Science is collaborating with JSTOR to digitize, preserve andextend access to The Scientific Monthly.

http://www.jstor.org

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

some of his dates. In his Introduction (p. xi), for instance, he puts Lavoisier's visit to Alsace-Lor- raine in 1768, whereas it actually took place in 1767. More serious is the mistake made in the title, according to which the correspondence begins in 1763, although the editor himself assigns the first letter to 1762. Lavoisier's father-in-law, who was executed with him in 1794, was born, not in 1676, as the editor would have Us believe (p. 122), but in 1719. An inspection of mines took the traveler

to Styria, not Syria (p. 116). Such easily remredied faults will not deter any reader who has access to Lavoisier letters unknown to the editor from com- municating them to him. For the editor aspires to make his painstaking collection of his illustrious compatriot's correspondence as complete as possi- ble.

EDWARD ROSEN

Department of History, City College, New York

r3

Books Reviewed in SCIENCE 3 August

Learning across Cultures, J. Watson and R. Lippitt (Inst. for Social Research, University of Michigan). Reviewed by J. B. Casagrande.

The Meaning of Relativity, A. Einstein (Princeton Uni- versity Press). Reviewed by P. G. Bergmann.

L'Evolution de la Lithosphere. I, Petrogenese, H. Termier and G. Termier (Masson). Reviewed by E. W. Berry.

Geometrical Optics, L. C. Martin (Philosophical Li- brary). Reviewed by M. Herzberger.

The Systematic Identification of Organic Compounds, R. L. Shriner, R. C. Fuson, D. Y. Curtin (Wiley; Chap- man & Hall). Reviewed by F. Ramirez.

10 August

Technical Education, P. F. R. Venables (Bell; Essential Books). Reviewed by D. H. Loughridge.

Biochemical Mechanisms in Inflammation, V. Menkin (Thomas). Reviewed by I. L. Bennett, Jr.

Rockets and Guided Missiles, J. Humphries (Macmillan). Reviewed by S. F. Singer.

Solid State Physics, F. Seitz and D. Turnbull (Academic Press). Reviewed by J. S. Plaskett.

Linear Feedback Analysis, J. G. Thomason (McGraw- Hill; Pergamon). Reviewed by J. Rothstein.

Principles and Practice of Field Experimentation, J. Wis- hart and H. G. Sanders (Commonwealth Bur. of Plant Breeding and Genetics, Cambridge, England). Re- viewed by W. T. Federer.

17 August

Numerical Analysis, Z. Kopal (Wiley). Reviewved by A. S. Householder.

Combustion Processes, vol. II, High Speed Aerodynamics and Jet Propulsion, B. Lewis, R. N. Pease, H. S. Taylor, Eds. (Princeton University Press). Reviewed by E. S. Taylor.

Advances in Electronics and Electron Physics, vol. VII, L. Marton, Ed. (Academic Press). Reviewed by D. ter Haar.

Structure Reports for 1942-1944, vol. 9, A. J. C. Wilson, Ed. (Oosthoek's). Reviewed by G. A. Jeffrey.

American Foundations and Their Fields, W. S. Rich (American Foundations Information Service).

24 August The Stiucture and Function of Skin, W. Montagna

(Academic Press). Reviewed by L. H. Warren. Pilot Plant Techniques of Submerged Fermentation, F. E.

Paterno. (Fondazione Emanuele Paterno; distributed by Interscience). Reviewed by E. 0. Karow.

Gestation, C. A. Villee, Ed. (Josiah Macy, Jr. Founda- tion). Reviewed by J. P. Greenhill.

Expanding Universes, E. Schrodinger (Cambridge Uni- versity Press). Reviewed by C. N. Yang.

Engineering in History, R. S. Kirby, S. Withington, A. B. Darling, F. G. Kilgour (McGraw-Hill). Reviewed by A. P. Usher.

History of American Technology, J. W. Oliver (Ronald Press). Reviewed by A. P. Usher.

Yellow Fever Vaccination, World Health Organization (order from Columbia University Press). Reviewed by J. P. Fox.

31 August

Life, the Great Adventure, J. Rostand and P. Bodin (Scribner's). Reviewed by H. P. Papazian.

Genetics and Metabolism, R. P. Wagner and H. K. Mitchell (Wiley; Chapman & Hall). Reviewed by J. Lederberg.

The Dynamics of Living Protoplasm, L. V. Heilbrunn (Academic Press). Reviewed by J. J. Izquierdo.

A Handbook for the Identification of Insects of Medical Importance, J. Smart. [British Museum (Natural His- tory)]. Reviewed by G. F. Ferris.

Clinical Electrocardiography, pt. I, L. N. Katz and A. Pick (Lea and Febiger). Reviewed by R. D. Pruitt.

An Illustrated Catalogue of the Rothschild Collection of Fleas (Siphonaptera) in the British Museum (Natu- ral History), G. H. E. Hopkins and M. Rothschild [British Museum (Natural History)]. Reviewed by P. T. Johnson.

Elements d'Immunologie Generale, P. Gastinel, R. Fas- quelle, P. Barbier (Masson). Reviewed by A. M. Pap- penheimer, Jr.

212 THE SCIENTIFIC MONTHLY

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

Special Issues of SCIENCE 1956

Instrument Issue -26 October Preconvention Issue - 7 December

1957 Proceedings Issue -15 February Annual Book Issue -26 April Instrument Issue 25 October Preconvention Issue - 6 December

TO AUTHORS seeking a publisher

Learn how we can publish, promote and distribute your book on a professional, dignified basis. All subjects considered. Scholarly and scientific works a specialty. Many successes, one a best seller. Write for booklet SM-it's free.

VANTAGE PRESS, Inc. * 120 W. 31 St., N.Y. 1 In Calif.; 6253 Hollywood Blvd., Hollywood 28

In Wash., D.C.: 1010 Vermont Ave., NW

SPANiSH (American )*FRENCH SPAN IS FI (or European )*FEC

GERMIAN * JAPANESE RUSSIAN . MODERN GREEK

any of 34 languages available for FREE TRIAL AT HOME

"The Lingu e With LINGUAPHONE-The World's Standard Con- "The Lrnguaphone versational M\ethod-You Start to SPEAK another CMonv ersationa l language TOMORROW-or IT COSTS YOU NOTHING! etod enable mnd Only Linguaphone brinigs the world's best native lan-

talk with Germans guage teachers into your home. You LISTEN to life- tk their mans like, conversational recordiings and LEARN another

gnateirown Ian- language in the same easy, natural way yotu lear ned

Reger, Claridge, Pa. Eniglish long before youi wenit to school. No Textbook Can Teach You to Speak

AT HOME, youi hear 8 to 12 niative men anid women, speak abouit everyday mnatters. It's like living in another land-youi listein- youi understand-YOU SPEAK correctly, easily, naturally. Yotu read anid write. You cail learn in 20 miniutes a day.

World-Wide Educational Endorsement That's why Linguiaphonie is uised rotund the world by scienitists, educators, goveriinmenits and buisiness firnms. Over a million home-study students of all ages have learned an- otlher language this ideal T TUTE conversational way. 7 LINGUAPH ONE INSTITUTE Cl 7-0830 1

T-42-106 Rock. Plaza, New York 20, N. Y. Please send me: C FREE Book n Informa-

Send for FREE booklet | tion on FREE Trial. No obligation, of couirse. that describes the co n- I dy language interest is ................ versational method; also Name .............................. details on how to obtain Address . a COMPLETE Course-unit Zone . ..

in helaguae ou city ...... oe.. State .... in the language you World's Standard Conversational Method For choose on FREE TRIAL. | Over Half a Century.

29-Pc. Chrome Vanadium Drill Set Specially made for speed drilling. In I

l l I 01 I sturdy plastic tool roll. Finest alloy I l | | ? L j steel drills hardened and precision

0!1 ground to the sharpest, longest last- I ing cutting edge obtainable; will |

I easily and cleanly bite through hard- woods, plastics, aluminum, iron and the toughest steels.

I Unconditionally guaranteed for thousands of drillings. Full I jobber length. Sizes by 64th from 1/16" to 1/2". There are only a limited quantity of sets 6 available at this low price, so hurry! ppd

I Also available with Turned Down Shanks to fit $ I95 all 1/4" drills. In individual pocket roll. ppd.

I 60 Pc. Set Wire Gauge CHROME VANADIUM DRILLS

, Top quality high test Chrome Vanadium I Drills designed for speed drilling through

* I -' / iloughest steels, woods, plastic, iron and E l~1J St aluminum. Precision ground, long-lasting I

cutting edges. Guaranteed to give years through of satisfaction. A full 60 pc. set nos. 1

A $14.95 value- NOW ONLY ................ $5.40

plus 35? pp. & hdig.

| Same set above available with Huot Index $6.65 container- Only ............. . *6 6

plus 35f pp. 6 hdig.

750 ea. for Finest Quality Imported I

I PRECISION PLIERS l FOR JEWELERS, OPTICAL WORKERS, ROUND NOSE I HOBBYISTS, CRAFTSMEN OF ALL KINDS!

These superb German instruments are of DIAGONAL d eep-forged, heat-treated high quality | tool steel, fabricated to most exacting specifications. All-over ground and pol- _-" ished to smooth hard surfaces. Smooth END CUTTING

I working joints with just right tension. NIPPERS Jaws meet perfectly to safely and securely iI"|. I hold even the most delicate objects in 1 SIDE FLAT - hard-to-reach corners and angles. Each 1 SIDE ROUND plier is 4" long and a veritable gem of _ precision and strength. SNIPE

I750 $5.00 each all 7 for ppd COMBINTIO

I 12 Pc. Needle & Warding FILE SET I ONLY I I ').lklill $X49 I lA 1 l l 11 l l 1 1 6 (plus 250 hdlg. & pstg.l )

1 ||l | | Made from the best quality tool steel I ||1 7flv7~j~j 2 to fit the exacting requirements of I

l llXnnllUl

|mechanics, watch and jewelry crafts- l1 1 1DNIfI I I n men, hobbyists. Attractive kit contains lI111 UD11111111I the following 51/2" forTg needle and I

warding files with high test cutting qualities: round, flat, knife, square, triangular. In all textures: fine,

medium fine, medium, medium coarse, coarse. Comes with polished wood handle and new type steel grip chuck. -

Minimum order $1.00. Send Check or M.D. C.O.D. plus fee. Money Back Guarantee.

SCOTT-MITCHELL HOUSE, INC. Dept. 7110, 611 Broadway, New York 12, N. Y.

V

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

GET YOUR ADVANCE COPY of the General Program-Directory of the AAAS New York Meeting

by first class mail - early in December The General Program-Directory of the 123rd Meeting of the AAAS in New York City, Dec. 26-31,

1956, will be available to anyone, at cost, within the first week in December-whether he can attend the Meeting or not. You will want the General Program-Directory for your reference shelf.

Program content Directory content 1. The two-session general symposium, "Moving Fron- 1. AAAS officers, staff, committees for 1956.

tiers of Science," arranged by the Committee on AAAS Meetings. 2. Complete roll of AAAS presidents and their fields.

2. The six sessions of the Conference on Scientific and 3. The more than 265 affiliated organizations. Technical Editorial Problems.

3. Details of the anniversary celebrations of the AAAS- 4. Historical sketch and organization of the Associa- Gordon Research Conferences, Botanical Society of tion; the 1955 revised Constitution and Bylaws. America, Freud et al.

4. Programs of the 18 AAAS sections (symposia and 5. Publications of the Association. contributed papers).. 6. AAAS Awards and Grants-including all past

5. Programs of the more than 80 participating societies. winnerS. 6. The Special Sessions: AAAS, Academy Conference, wnners. Conference on Scientific Manpower, National Geo- 7. Membership figures by sections. graphic Society, Phi Beta Kappa, RESA, Sigma Xi.

7. Details of the Hotel Statler-center of the Meeting 8. Section committees (Council members) in detail. -and other hotels and session sites.

8. Titles of the latest foreign and domestic scientific 9. Local committees. films to be shown in the AAAS Science Theatre. 10. Future Meetings of the AAAS-through 1962.

9. Exhibitors in the 1956 Annual Exposition of Science and Industry and descriptions of their exhibits. 11. New and current activities of the AAAS.

Advance Registration Advance registration has these decided advantages: 1 )You avoid delay at the Registration Center upon arrival;

2)You receive the General Program-Directory in ample time to decide, unhurriedly, which events and sessions you particularly wish to attend; 3) Your name is posted in the Visible Directory as the Meeting opens.

The following coupon may be used both by advance registrants and by those who wish only the advance copy of the General Program-Directory.

_-- THIS IS YOUR COUPON FOR AN ADVANCE COPY OF THE GENERAL PROGRAM-DIRECTORY---

1 a. - Enclosed is $3.00 for my advance Registration Fee which brings me the Program-Directory, Convention Badge, and all privileges of the Meeting.

lb. Z Enclosed is $2.00 for only the Program-Directory. (It is understood that, if I should attend the Meeting later, the Badge-which is necessary for all privileges of the Meeting-will be secured for $1.00 more.)

(Check one)

2. FULL NAME (Dr., Miss, etc.) ........................................e. (Please print or typewrite) (Last) (First) (Initial)

3. ACADEMIC, PROFESSIONAL, OR BUSINESS CONNECTION ......................................................

4. OFFICE OR HOME ADDRESS ................................................... (For receipt of Program-Directory)

5. YOUR FIELD OF INTEREST ...................................................................

6. CONVENTION ADDRESS ..................... ............................................. (May be added later, after arrival)

Please mail this Coupon and your check or money order for $3.00 or $2.00 to the AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE

1515 Massachusetts Avenue, N.W., Washington 5, D.C.

vi

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

r New Books s Solid State Physics. vol. II, Advances in Research and

Applications. Frederick Seitz and David Turnbull, Eds. Academic Press, New York, 1956. 468 pp. $10.

Clays and Clay Minerals. Proceedings of the Third Na- tional Conference on Clays and Clay Minerals. W. 0. Milligan, Ed. National Academy of Sciences-National Research Council, Washington, D. C., 1955. 573 pp.

Automatic Digital Calculators. Andrew D. Booth and Kathleen H. V. Booth. Academic Press, New York; Butterworths, London., ed. 2, 1956. 261 pp. $6.

The Changing Universe. The story of the new astron- omy. John Pfeiffer. Random House, New York, 1956. 243 pp. $4.75.

Radio Electronics. Samuel Seely. McGraw-Hill, New York, 1956. 487 pp. $7.

Molecular Flow of Gases. G. N. Patterson. Wiley, New York; Chapman & Hall, London, 1956. 217 pp. $7.50.

Annual Review of Medicine. vol. 7. David A. Rytand, Ed. Annual Reviews, Stanford, Calif., 1956. 611 pp. $7.

Work and Authority in Industry. Ideologies of man- agement in the course of industrialization. Reinhard Bendix. Wiley, New York; Chapman & Hall, London, 1956. 466 pp. $7.50.

The Steel Skeleton. vol. II, Plastic Behavior and De- sign. J. F. Baker, M. R. Horne, J. Heyman. Cambridge University Press, New York, 1956. 408 pp. $12.

Elententary Qualitative Analysis (laboratory manual). Morris F. Stubbs and W. Norton Jones, Jr. Brown, Dubuque, Iowa, 1956. 110 pp. $2.

The Chemtical Constitution of Natural Fats. T. P. Hil- ditch. Wiley, New York, rev. ed. 3, 1956. 664 pp. $16.

Integral Functions. Cambridge Tracts in Mathematics and Mathematical Physics, No. 44. M. L. Cartwright. Cambridge University Press, New York, 1956. 135 pp. $3.50.

Machine Literature Searching. James W. Perry, Allen Kent, Madeline M. Berry. Western Reserve University Press and Interscience, New York, 1956. 162 pp. $4.

Elentents of Genetics. Mendel's laws of heredity with special application to man. Edward C. Colin, McGraw- Hill, New York, 1956. 498 pp. $5.75.

Proceedings of the First and Second Conference on Carbon. University of Buffalo, Buffalo, N.Y., 1956. 222 pp. $5.50.

Currents in Biochemical Research 1956. David E. Green, Ed. Interscience, New York, 1956. 697 pp. $10.

The Chemistry and Mode of Action of Plant Growth Substance. Proceedings of a symposium held at Wye College (University of London), July 1955. R. L. Wain and F. Wightman, Eds. Academic Press, New York; Butterworths, London, 1956. 312 pp. $9.50.

The Fighting Cheyennes. G-eorge Bird Grinnell. Uni- versity of Oklahoma Press, Norman, 1956. 453 pp. $5.

The Classification of Lower Organisms. Herbert F. Copeland. Pacific Books, Palo Alto, Calif., 1956. 302 pp. $7.50.

A Handbook for the Identification of Insects of Medical Importance. John Smart. Chapters on fleas by Karl Jordan and on arachnids by R. J. Whittick. British Museum (Natural History), London, ed. 3, 1956. 303 pp. ?2.

Flow of Gases through Porous Media. P. C. Carman. Academic Press, New York; Butterworths, London, larA 18A9 nn. $6

Basic Chemnistry of Textile Colouring and Finishing. 191 pp. $6. Basic Chemistry of Textile Preparation. 197 pp. $6. S. R. Cockett and K. A. Hilton. Philo- sophical Library, New York, 1956.

A Dictionary of English Domestic Architecture. A. L. Osborne. Philosophical, New York, 1956. 111 pp. $6.

An Essay on the Foundations of Geometry. Bertrand A. W. Russell. Dover, New York, 1956. 201 pp. Paper, $1.50.

Experiment and Theory in Physics. Max Born. Dover, New York, 1956. 43 pp. Paper, $0.60.

Electrical Interference. A. P. Hale. Philosophical Li- brary, New York, 1956. 122 pp. $4.75.

Health for the American People, a Symposium. Pre- sented 21 Nov. 1955. Massachusetts Memorial Hospi- tals Centennial Celebration. Little, Brown, Boston, 1956. 105 pp. $ 1.

Somne Clinical Applications of Electroneurophysiol- ogy, Especially Electrodiagnosis and Electromyog- raphy. Sidney Licht, Ed. Elizabeth Licht, New Haven, Conn., 1956. 272 pp. $10.

A Field Guide to the Ferns and Their Related Fami- lies of Northeastern and Central North America with a Section on Species Also Found in the British Isles and Western Europe. Boughton Cobb. Houghton Mifflin, Boston, 1956. 281 pp. $3.75.

Investigation on the Theory of the Brownian Move- ment. Albert Einstein. R. Furth, Ed. Translated by A. D. Cowper. Dover, New York, 1956. 122 pp. $1.25.

The Principles of Mechanics. Presented in a new form. Heinrich Hertz. Translated by D. E. Jones and J. T. Walley. Dover, New York, 1956. 274 pp. Paper, $1.75.

Hydrodynamics. Hugh L. Dryden, Francis D. Murna- ghan, and H. Bateman. Dover, New York, 1956. 634 pp. Paper, $2.50.

Chromosome Botany. C. D. Darlington. Allen & Un- win, London, 1956 (order from Macmillan, New York). 186 pp. $2.75.

Mechanical Vibrations. J. P. Den Hartog. McGraw- Hill, New York, ed. 4, 1956. 436 pp. $9.

Annual Review of Plant Physiology. vol. 7. Lawrence R. Blinks, Ed. Annual Reviews, Stanford, Calif., 1956. 456 pp. $7.

Illustrations of the Huttonian Theory of the Earth. John Playfair. Cadell and Davies, London and Wil- liam Creech, Edinburgh. Facsimile reprint, with an introduction by George W. White, of 1802 edition published by University of Illinois Press, Urbana, 1956. 528 pp. $4.50.

Traite de pharn*acie chimique. vol. I, Chimie mine'rale, 838 pp.; vol. II, Chimie organique, serie acyclique (composes non azotes), serie cyclique (composes non azotes), 1164 pp.; vol. III. Chimie organique, serie cyclique (composes organiques azotes), serie hydro- aromatique, serie terpenique, sterols et acides biliaires, vitamines, hormones, composes organomineraux, 1194 pp.; vol. IV, Chimie organique, composes heterocy- cliques, matieres colorantes artificielles, anthista- miniques, alcaloYdes, 1018 pp.; vol. V, Chimie or- ganique, heterosides, protides, produits, divers, anti- biotiques, table alphabetiques des vols. II-V. 752 pp. P. Le Beau, Ed. Masson, Paris, ed. 4, 1955-56. 5 vols., cloth, F. 37,000; paper, F. 32,000.

Asymptotic Expansions. A. Erdelyi. Dover Publications, New York, 1956. 108 pp. Paper, $1.35.

vii

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

Jor Meetings t October

28-1. American Council of Independent Laboratories 29th meeting, New York, N.Y. (H. M. Dudley, 430a East-West Highway, Washington 14.)

29-30. American Cancer Soc., scientific session, Nev York, N.Y. (ACS, Professional Education Section, 521 W. 57 St., New York 19.)

29-30. East Coast Conf. on Aeronautical and Naviga. tional Electronics, 3rd annual, Baltimore, Md. (W. D Crawford, Westinghouse Electric Corp., Air Arm Div. Friendship International Airport, Baltimore 27.)

29-31. Energy Resources Conf., Denver, Colo. (Energ] Resources Conf., c/o Denver Chamber of Commerce 1301 Welton St., Denver 4.)

29-1. Conference on Climatology sponsored by Americar Meteorological Soc., Asheville, N.C. (K. C. Spengler 3 Joy St., Boston 8, Mass.)

29-1. Soc. of Exploration Geophysicists, annual, New Or. leans, La. (G. A. Grimm, Tide Water Associated Oil Co., Box 2131, Midland, Tex.)

29-2. Convention on Ferrites, Institution of Electrical En. gineers, London, England. (Secretary, I.E.E., Savo) Place, London, W.C.2.)

31. Society of Vertebrate Paleontology, Minneapolis Minn. (J. T. Gregory, SVP, Peabody Museum of Nat. ural History, Yale Univ., New Haven, Conn.)

31-1. Western Area Development Conf., 3rd, Phoenix, Ariz. (C. Green, Mountain States Office, Stanford Re. search Inst., Phoenix.)

31-2. Geological Soc. of America, annual, Minneapolis, Minn. (H. R. Aldrich, GSA, 419 W. 117 St., New York 27.)

31-2. Mineralogical Soc. of America, Minneapolis, Minn. (C. S. Hurlbut, Jr., 12 Geological Museum, Oxford St., Cambridge 38, Mass.)

31-2. Soc. of Economic Geologists, annual, Minneapolis, Minn. (0. N. Rove, 30 E. 42 St., New York 17.)

31-2. Society for Experimental Stress Analysis, annual, Columbus, Ohio (W. M. Murray, Massachusetts Inst. of Technology, Cambridge 39.)

31-3. American Soc. of Tropical Medicine and Hygiene, New Orleans, La. (J. E. Larsh, Jr., School of Public Health, Univ. of North Carolina, Chapel Hill.)

November

1-2. Soc. for Applied Spectroscopy, 1 1 th annual, Nem York, N.Y. (F. M. Biffen, Johns-Manville Research Center, Manville, N.J.)

1-3. Assoc. of Geology Teachers, annual, Chicago, Ill. (C. E. Prouty, Dept. of Geology, Univ. of Pittsburgh, Pittsburgh 13, Pa.)

5-7. Paleontological Soc., annual, Minneapolis, Minn, (H. B. Whittington, Museum of Comparative Zoology, Harvard Univ., Cambridge, Mass.)

6-15. International Grassland Cong., 7th, Palmerston, New Zealand. (S. H. Saxby, P.O. Box 2298, Welling. ton, New Zealand.)

7-9. Conf. on Electrical Techniques in Medicine and Biology, 9th annual, New York, N.Y. (E. D. Trout, X-Ray Dept., General Electric Co., Milwaukee 1, Wis.)

7-9. Soc. of Rheology, annual, Pittsburgh, Pa. (W. R. Willets, Titanium Pigment Corp., 99 Hudson St., New v17- - 1 Q \

8-9. Canadian High Polymer Forum, 7th, Sarnia, Ont., Canada. (M. H. Jones, Ontario Research Foundation, 43 Queen's Park, Toronto 5, Ont.)

8-10. Gerontological Soc., annual, Chicago, Ill. (N. W. Shock, Baltimore City Hospitals, Baltimore 24, Md.)

10. Soc. for the Scientific Study of Religion, fall meet- ing, Cambridge, Mass. (R. W. Burhoe, American Acad. of Arts and Sciences, Cambridge 36.)

11-12. American Soc. for the Study of Arteriosclerosis, annual, Chicago, Ill. (R. G. Gould, P.O. Box 1663, Los Alamos, N.M.)

11-17. Cardiology, 5th inter-American cong. of, Havana, Cuba. (I. Chavez, Calzada de la Piedad 300, Mexico, D.F., Mexico.)

12-14. Assoc. of Military Surgeons of the U.S., annual, Washington, D.C. (S. E. Womeldorph, AMSUS, Suite 718, 1726 Eye St., NW, Washington 6.)

12-15. American Petroleum Inst., 36th annual, Chicago, Ill. (API, 50 W. 50 St., New York 20.)

12-16. American Public' Health Assoc., 84th annual, Atlantic City, N.J. (R. M. Atwater, 1790 Broadway, New York 19.)

12-16. American Soc. of Agronomy, annual, Cincinnati, Ohio. (L. G. Monthey, 2702 Monroe St., Madison 5, Wis.)

13-15. Historical Development of Physiological Thought, symposium, Brooklyn, N.Y. (E. Goodwin, State Univ. of New York, College of Medicine, Brooklyn 3.)

14-16. Newer Developments in the Diagnosis and Man- agement of Cancer, symp., Duarte, Calif. (J. Love, Div. of Postgraduate Medical Education, City of Hope Medical Center, Duarte.)

14-16. Optics and Microwaves, symp., Washington, D.C. (Symp. on Optics and Microwaves, P.O. Box 355, Falls Church, Va.)

15-16. American Philosophical Soc., Philadelphia, Pa. (APA, 104 S. 5 St., Philadelphia 6.)

15-16. Operations Research Soc. of America, 10th natl., San Francisco, Calif. (T. E. Oberbeck, U.S. Naval Post Graduate School, Monterey, Calif.)

15-16. Soc. of Technical Writers, joint with Assoc. of Technical Writers and Editors, New York, N.Y. (S. F. Shapiro, STW, P.O. Box 22, Newton Centre 59, Mass.)

15-17. Acoustical Soc. of America, Los Angeles, Calif. (W. Waterfall, ASA, 57 E. 55 St., New York 22.)

18-25. National Meeting of Surgeons, Mexico City, Mex- ico. (International Acad. of Proctology, 147-41 San- ford Ave., Flushing, N.Y.)

19-20. Entomological Soc. of America, Eastern Branch, Atlantic City, N.J. (B. F. Driggers, Experiment Sta- tion, New Brunswick, N.J.)

22-3. International Cong. of Industrial Chemistry, 29th, Paris, France. (J. Gerhard, Societe de Chimie Indus- trielle, 28, Rue Saint-Dominique, Paris VIIe.)

23-24. American Mathematical Soc., Evanston, Ill. (E. G. Begle, 207 Leet Oliver Memorial Hall, Yale Univ., New Haven 11, Conn.)

23-24. American Physical Soc., Chicago, Ill. (K. K. Dar- row, APS, Columbia Univ., New York 27.)

23-24. American Soc. of Animal Production, annual, Chicago, Ill. (W. M. Beeson, Dept. of Animal Hus- bandry, Purdue Univ., West Lafayette, Ind.)

25-30. American Rocket Soc., annual, New York, N.Y. (J. J. Harford, ARS, 29 West 39 St., New York 18, NT V d

viii

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

See the Stars, Moon, Planets Close Up! MEASU RING MAGN I Fl ER ASSEMBLE A BIG 100 POWER, 3" REFLECTING For Checking

~, TELESCO E 6 powerInspecting, MeasuringExrml - - | 1 ~~~~~~~~TELESCOPE 6 powver magnifleation. Size 2^ s1 x .Extremely 1 . . . with This accurate right out to edge of field. Reticle pat- X

C 87 P ! . 3 .............tern etched on glass for permanence. Poat-

| | *6 | | Min~~COXic d|Sl 206-omplete 87 Piece09

"Do- it-Yourself"l Kit tively not a cheap film reticle. Linear dimen- sions in decimal Inches from 0 to %d n In Everything you need!I No steps of .005". mm scale from 0 to 10mm in

machining! Easily assem- steps or .2mm. Mleasures thicknesses from .002" o 0 bled! We furnish complete, to .007". Moles from .005'v dia. to .050'v. simple Instructions. Kit in- Instrument comes in protective, genuine leather .__...... ___ cludes: 3' f/10 aluminized case. $ 2~ and overcoated Spherical Stock #30,169-X complete (no extras3 Mirror-60X Eyepiece and to buy) .... S75. Pstpd. 10OX Barlow Lens-Cross- line Finder-sturdy 40" ULTRA HIGH POWER- 0 x 60 BINOCULARS 6 Tripod-fork type Equa- F A most unusual buy. See miles and miles tonial Mount with locks on away. Exceptionally large objective lenses PRISM

B<8~mt =Ast t,,&/.s.$_ Valuablboth axes-ventilated 3" -almost 21s2 c diameter-provide amazing Dimensions of polished sur. Mirror Mo ont-heavy wall, light-gathering qualities-bright, crystal faces 18mm. x 30mm. Dense f ,black Telescope rtube. Al clear, sharply defined viewing. Individual flint glass, free ef strlae and Adapt your camera to this Scope for nuts and bolts saspplied focuis eyepieces. Leather case and neck strain. Use with all models excellent Telephoto shots and fasci- Nothing extra to buy. Se strap Included. Mfgd. by a high grade of spectrometers. nating photos of moon! Shown below 3l spherical siirror (30" producer In Japan-a domestic counterpart would cost sev- is an actual photograph of the moon fl. . i s guaranteed ts re- eral times the price. Full money-back guarantee. Stock No. 30,143-X taken through our Astronomical Tele- solve detail right up to Soc 156X.................. St0 P.$75.90 Pstpsd. $8.25 Pstpd. scope by a 1 7 year-old student theoretical limit. Your fin- -

mshed scope can also be used NEWr of A SOLAR ENERGY FURNA t;"glenses inteobiectivesgierurestriay.Moneyr bA f ascinating new field. You can build your own Solar Furuace for guarantee. Shipping weniglc experimentation-many practical uses. It's easy-inexpensive. We 10 fwlb with Kit: fed rnish instruction sheet. This sun powered furnace will generate ter-

Va6sabae STAR CAT Sd riSc heat-produces many unusual fusing effects. Sets paper aflame in

qgA<x8_ MOUNTED 500 13 PO E pageCTV book, "asin5in s8paeonds. rcinbo s nldd

COVER THE STARS"!seods Stock #85,025.X $29.50 Stock #80,040-X ..Fresnel Lens, size 114" X 16os"-fal. 19"

fob., Barringtos, N.J. .350 Postpad_.

A "CLOSE-OUT" NW STATIC ELECTRICITY GENERATOR BARGAIN SPECIAL ing spark display as you set off a miniature belt of 7 x 50 MONOCULAR lsghtnsng. Absolutely safe and harmless-perfect for classroom ex-

ThisOis fiNe quaLitY, American made perimentation . . . ideal for science clubs. Sturdily made-stands Tlils Is fine quality, American made 14" high. Turn the handle and two 9' plastic discs rotate In op- instrument-war surplus! Actually Vs posits directions. Metal collector brshes pick up the static of U. S. Govt. 7 x 50 Binocular. Used f o r > g e e i si o b s e r v a ti o n b o t h tda y ha n d n i g h t . . a f u t oin t aken f a s c i n a tc h a r g e d b y t h e jumip in g s p a r k . C o u n t le s s t r i c k s a n d e x p e r im e n ts . telephoto shots. Brand niew. $95 value. Due to Japanese competition Instruc b iled. we close these ofet at a bargin price. Instrtion accetoied. Stock No.5$15.00 Pstpd. Stock No, 70,070-X .5 0 $10.9o5 Postpaid

50-150-300 POWER MICROSCOPE Low Price Yet Suitable for Classroom Usel I PITZ MOONSCOPE .. 3 crmtc Only $14.95 3 Achromatic ObJective Lenses on Revolving Turret! A precision-made 32 power reflecting telescope-by the Imported! The color-corrected, cemented achromatic makers of Spitz Planetarium. Clearly reveals the craters lensos in the objectives give you far superior results to, the moon, ohows Saturn, Jupiter, other wonders of the \. - the single lenses found in the microscopes selling for heavens. Based on same principles as world's giant tele- $9.95! Results are worth the difference! Fine rack and' scopes. Stands 36'f high oni removable legs. Adjustable 3'V Pinlion focusing, polished and corrected mirror. Fork type Alt-Azimuth ro- Stsck No. 70,008-X .. ......$14.95 Pstpd. tates on fuill 3600 circle-swings to any location in the

MOUNTED 500 POWER OBJECTIVE sky. Fascinating 18-page Instruction book is included. ..Threaded for easy attachment on above microscope. Achromatic Instrument packed in sturdy carrying case.

lenses for flne viewing. 3 mm. focal lenigth. Stock No. 70,068-X .. ......$14.95 Postpaid Stock #30-197-X .. . . . . . . . . . . . . $5.00 Pstpd. __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

New! 2 in 1 Combination! i Diffraction Spectroscope Fdrn fo Kiuts I Fnclud Imported-from Engiandl SIMPLE LENS KITS! F1nfraut!Fnfr Pocket-Size Uses ~~~~~~~~~~grating replica instead of plainly written, illustrated booklet showing how you 50POWER MICROSCOPE prisms. Enbles you to see what can build lots of optical Items. and your photographic filters do SokN.2X 1 ess... .0Pspi POWER TELESCOPE ,- ~~~~~~~~to see color characteristics of your StcNo 2--0lne . 100Pspi IO POWER TELESCOPE ~~~~~photo light sosurces. Stock No. 5-X-45 lenses .. ..$ 5.00 Postpaid

ONLY Stock No. 50,020-x ~~~~~~~~~~~~~$14.70 Pp Stock No. 10-X-80 lenses .. ..$10.00 Postpaid

ppd. GET OUR GIANT Useful Telescope and Microscope FREE CATALOGwX combined in one amazing, precision O e 0 0O tc lB ran instrument. Imported! No larger O e 0 0 O tclB ran than a fountain pen. Telescope is 64 Fascinating Pages 10 Power. Microscope magnifies 50 Huge selection of lenses, prisms, war surplus Times. Sharp focus at any range. optical instruments, parts and accessories, Tele- . Handy for sports, looking at small scopes, microscopes, binoculars. Hand spectro- objects, just plain snooping, scopes, reticles, mirrors, Ronchi rulings, dozens Order Stock #30,059-X $4.50 of other hard-to-get optical items. America's Na,

ppd. 1 source of supply for Researchers, Lab. Techni- -. __ ~~~~Send Check or M.O. cians, Photographers, Hobbyists, Telescope Satisfaction Gusranteed! Makers, etc. Ask for catalog X.

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions

COU NT DOWN on the BIG engineering

challenge of all timne! Rock-anchored into the crags of the Santa Susana Mountains near Los Angeles crouch the massive test-stands of ROCKETDYNE -the most gigantic rocket engine workshop in the Western Hemisphere. The privileged men who tend these great power plants are a select group indeed. For no matter what their specialty, they are working at the most advanced state of their art. The scientist or engineer who enters the field of large, liquid-propellant rockets at ROCKETDYNE can expect to encounter more phases of his profession in one day than in a year of conventional practice. Here at RoCKETDYNE men use units no bigger than a small sports car to generate power outputs greater than Hoover Dam - power that is precisely delivered during a period measured in minutes. Inside the engines, materials and mechanisms must function perfectly under extreme stress and vibration, yet temperatures range from minus 250?F to 5000?F in close juxtaposition. Valve action must be so close to instantaneous that the expression "split- second" is completely unimpressive; we are dealing with conditions in which the term "steady state" is applied to a millisecond. Day by-day the tests go on, and every day produces its two miles of information on oscillograph tape - fascinatingly new information, far in advance of available texts. This is one of the newer industries with an assured future. The methods now being developed here for producing effective power to the attainable limits of mechanical stress will have wide application. Such experience is practically unobtainable anywhere else. The only way you can appreciate the far- reaching significance of such a program is to be a part of it. Will you accept the challeng,e?

Here are the fields of opportunity at ROCKETDYNE:

FOR ENGINEERING GRADUATES: Aeronautical, Chemical, Structural, Elec- trical, Electronic, Metallurgical, Mechanical; qualified for Analytical, Research, Development or Design responsibility. FOR SCIENCE GRADUATES: Physics, Chemistry, Mathematics.

INTERESTING BOOKLET. Facts about rocket engines and engineering. Send for your personal copy of "Th- Big Challenge." Write: A. W. Jamieson, Rocketdyne Engineering Personnel Dept. 596-IOSM, 6633 Canoga Avenue, Canoga Park, Calif.

A DIVISION OF NORTH AMERICAN AVIATION, INC.

B UI LD E RS O F P O WER F OR OU T ER SP A CE

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 16:36:04 PMAll use subject to JSTOR Terms and Conditions