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EminentBooks

in Chemistry by

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Principles of Polymer Chemistry. By PaulJ. Flory, Cornell University. "This book isdestined to serve as a widely accepted basictext for . . . polymer chemists."-IndustrialLaboratories"Clear, comprehensive, and critical."-TheIndicator 688 pages. $8.50

Organic Crystals and Molecules: THEORYOF X-RAY STRUCTURE ANALYSIS WITH APPLI-CATIONS TO ORGANIC CHEMISTRY. By J. Mon-teath Robertson, The University of Glasgow."The reviewer enthusiastically recommendsthe book. ..." Journal of Chemical Edu-cation 351 pages. $5.00

Structure and Mechanism in OrganicChemistry. By C. K. Ingold, University ofLondon. "Britain's most eminent chemist inthe field of mechanisms of organic chemicalreactions has written a comprehensive, up-to-date, critical and indeed monumental surveyof the paths by which ionic organic reactionsproceed in solution. ."-Chem. and Eng.

News 835 pages. $9.75 1

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University PressPLACE, ITHACA, NEW YORK

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*SE*23 SEPTEMBER 1955

*APPLICATION FOR HOTEL RESERVATIONS122nd AAAS MEETING

Atlanta, Ga., December 26-31, 1955The list of hotels and their rates and the reservation coupon below are for your convenience in making your

hotel room reservation in Atlanta. Please send your application, not to any hotel directly, but to the AAASHousing Bureau in Atlanta and thereby avoid delay and coilfusion. The experienced Housing Bureau will makeassignments promptly; a confirmation will be sent you in two weeks or less. As in any city, single-bedded roomsmay become scarce; double rooms for single occupancy cost more; if possible, share a twin-bedded roomwith a colleague and also save money. Mail your application now to secure your first choice of desired accom-modations. All requests for reservations must give a definite date and estimated hour of arrival, and also probabledate of departure.

HOTELS AND RATES PER DAY* Hotels starred have sessions in their public rooms. Most hotels will place comfortable rollaway beds in rooms or suitesat 2.50 or 3.00 per night. For a list of headquarters of each participating society and section-and for information ondormitory accommodations at Atlanta University and Georgia Institute of Technology-please see Science, July 22, orThe Scientific Monthly, August.

Hotel* Single Double Bed Twin Bed SuiteGeorgia Tech Zone

Atlanta Biltmore* 6.00-10.00 8.00-14.00 10.00-14.00 15.00-50.00Cox-Carlton 4.00- 6.00 6.00- 8.00 6.00- 8.00 14.00-16.00Georgian Terrace 5.00- 8.00 8.50-11.00 8.50-12.00 12.00-22.00Peachtree Manor 5.00- 8.00 7.50- 9.50 8.50-12.00 15.00-28.00

Downtown ZoneAtlantan 4.00- 5.50 6.00- 8.50 8.50-10.50 17.00Dinkler Plaza* 6.00- 8.50 7.00-11.50 13.00-15.00 12.00-35.00Georgia* 4.00- 7.00 6.00- 9.00 7.00-10.00 15.00-20.00Hampton 2.50- 4.00 3.50- 5.00 5.00- 7.00Henry Grady* 5.50-12.00 9.00-12.00 9.50-12.00 16.00-25.00Imperial 4.00- 5.50 6.00- 6.50 6.50- 7.00Jefferson 3.00- 3.50 4.00- 5.00 4.50- 5.00Peachtree on Peachtree 5.00- 7.00 7.50-10.50 8.50-10.50 10.00-18.00Piedmont* 5.50- 8.00 7.50-10.00 10.00-14.00 20.00-25.00As required by local laws, the following are available for Negro members and visitors:

Royal Hotel 4.00 5.00214 Auburn Ave., N.E.Savoy Hotel 2.50 3.50- 4.50239 Auburn Ave., N.E.University Motel 5.00 8.0055 Northside Drive, N.W.

.--------------THISIS YOUR HOTEL RESERVATION COUPON-.AAAS Housing BureauRoom 912, Rhodes-Haverty Bldg. Date of Application .......................................

Atlanta 3, Ga.Please reserve the following accommodations for the 122nd Meeting of the AAAS in Atlanta, Dec. 26-31, 1955:

TYPE OF ACCOMMODATION DESIREDSingle Room ................ Desired Rate.Maximum Rate...........Double-Bedded Room ........ Desired Rate ......... Maximum Ratea............. Number inparty .

Twin-Bedded Room .......... Desired Rate ......... Maximum Rate.Suite ...................... Desired Rate ......... Maximum Rate ........ ..... 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.)

NAME ............(Individual requesting reservation) (Please print or type)

ADDRESS ......

~tee )..........................(Ci,,and o, ;................................. (St'e)............................(Street) (City and Zone) (State)Mail this now to the Housing Bureau. Rooms will be assigned and conlfirmed in order of receipt of reservation.

570 SCIENCE, VOL. 122

23 SEPTEMBER 1955

CANCER |

NUCLEIC ACIDS, for growth studies.YEAST ADENYLIC ACID, for its inhibition of tumorgrowth in mice.

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TRIPHOSADEN) (Schwarz Brand of Adenosine Tri-phosphate), for phosphorylation studies.

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JOSEPH B. FICKLEN III1848 East Mountain St. Pasadena 7, California

GROUP PROCESSESTransactions of the First Conference

This stimulating and exciting volume is the nearly verbatimreport of a multidiscipline conference of outstanding repre-sentatives from the fields of zoology, anthropology, ethology,psychology, physiology, and psychiatry, all of whom con-tribute liberally from their wealth of experience.

These Transactions enable the reader to watch the develop-ment, by social and 6iological scientists, of a mutual andcommon understanding of the problems involved in theinterpretation and measurement of patterns of behavior,6oth animal and human. Much new and previously unavail-able data on ethology are presented.

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illllllllPOSITIONS WANTED ||llijllllllllllMicrobiologist, recent Ph.D.; now teachingmicrobiology in medical school. Research in im-munology. Sigma Xi, publications. Desires aca-demic appointment. Box 248, SCIENCE. X

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WANTED TO PURCHASE . .. Sets and runs, foreignPERIODICA and domestic. EntireSCIENTIFIC PERIODICALSlibraries and smallerSCIEC and BOOKS collections wanted

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Your sets and files of scientific journalsare needed by our library and institutional customers. Please sendus lists and description of periodical files you are willing to sellat high market prices. Write Dept. A3S, J. S. CANNER, INC.

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Creative organic chemist, well-rounded in fun-damental and practical synthetic know-how, toserve as responsible investigator in developmentof new pharmaceuticals; offers fine opportunityfor growth and satisfaction. Box 246, SCI-ENCE. 9/23, 30, 10/7

Chief, investigative medicine; certified internistpreferred; splendidly equipped clinical and re-search laboratory, metabolic ward, radioisotopeunit; duties executive coordination of researchentire staff and residents. Also vacancy director,radioisotope unit; general hospital, 1000 pa-tients; affiliated Baylor Medical College; facultyappointment; citizenship required, Manager, VAHospital, Houston, Texas. X

(a) Director or associate director, clinical re-search; East; physician preferred; $20,000.(b) Physician qualified in parasitology; re-search position in tropical diseases; Africa.(c) Pharmacologist, Ph.D. with extensive ex-perience in industrial pharmacology, to head de-partment, one of leading pharmaceutical com-panies; Midwest. (d) Chemist, analytical orphysical; well known laboratory engaged in prac-tical research; opportunity medical school facultyappointment; $5-$10,000. (e) Senior medicalwriter; woman preferred; $5500. (f) Physiolo-gists, Ph.D. 's; with training and research inatherosclerosis and, also, Bacteriologist quali-fied in virology and tissue culture work; pharma-ceutical company; East. S9-4 Medical Bureau,(Burneice Larson, Director) Palmolive Building,Chicago. X

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Director of cancer research; radiation biochemis-try; covering experimental and clinical material;large New York City hospital; salary open. Box249, SCIENCE. X

1956 Research GrantsThe Arctic Institute of North America

is offering research grants in 1956 forscientific investigations dealing with thearctic and subarctic regions of NorthAmerica. Applications for research grantsare invited from those who have dem-onstrated their ability to conduct researchwork of superior quality in some field ofscience. Proposals in the broad field ofthe earth sciences, in marine biology, andin physiology are especially invited. Fa-cilities of the Arctic Research Laboratoryat Barrow, Alaska, including housing andequipment, are available to scientists forboth summer and winter investigations.Completed applications should be receivedbefore 1 November, 1955. For informa-tion and forms write Arctic Institute ofNorth America, 1530 P. Street, N.W.,Washington 5, D.C., or 3485 UniversityStreet, Montreal 2, Quebec, Canada.

DISPLAY: Rates listed below-no charge for Box Number.Monthly invoices will be sent on a charge account basis-provided that satisfactory credit is established.

Single insertion $19.50 per inch7 times in 1 ywr 17.50 per inch

13 times h 1 year 16.00 per inch26 times in 1 year 14.00 per Inch52 times in 1 year 12.50 per inch

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CRYO-DESICCATORFor use in Histology-Cytology-His-itopathology -Cytochemistry -Histo-chemistry

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