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APPLICATION FOR HOTEL RESERVATIONS119th AAAS MIEETING

St. Louis, Mo., December 26-31, 1952The list of hotels and their rates and the reservation coupon below are for your convenience in

making your hotel room reservation in St. Louis. Please send your application, not to any hoteldirectly, but to the AAAS Housing Bureau in St. Louis and thereby avoid delay and confusion. Theexperienced Housing Bureau will make assignments promptly; a confirmation will be sent you intwo weeks or less. Share a room with a colleague if you wish to keep down expenses. Mail your ap-plication now to secure your first choice of desired accoxpmodations. All requests for reservations mustgive a definite date and estimated hour of arrival, as well as date and approximate hour of departure.

HOTELS AND RATES PER DAYHotel*

CHASEDESOTO*DJE-FFERSON*DLENNOX DMAJESTIC DMARK TWAIN DMAYFAIR DMELBOURNEROOSEVELTSHERATONSTATLER*D

6.~4.4.5.3.4.

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Reserved for mathem?tticians,.25- 8.85 8.00-11.00.00- 7.00 6.50- 9.50

Twin Beds8.00-12.007.50-14.008.50-11.508.50- 9.507.00- 8.008.50- 9.508.00-12.008.50-11.00

$2.75 to $3.759.00-12.507.50-11.00

Suites14.00-30.0011.50-22.0019.00-30.0013.00 & up10.00-15.0016.00 & up15.00 & up17.00-25.00

per bed.11.00-30.0021.50-26.50

* Hotels starred have sessions in their public rooms. For a list of the headquarters of each participating society and section,please see Association Affairs, Science, July 25, or The Scientific Monthly, August.D = downtown hotel; the othbr hotels (not downtown) are for the mathematicians primarily.

.----------- THIS IS YOUR HOTEL RESERVATION COUPON.-AAAS Housing BureauRoom 406-911 Locust St. D4te of Application .St. Louis 1, Mo.Please reserve the following accommodations for the 119th Meeting of the AAAS in St. Louis, Dec. 26-31, 1952:

TYPE OF ACCOMMODATION DESIREDSingle Room ............ Desired Rate ......... MaxiRpum RateDouble-Bedded Room. Desired Rate ......... Maximum Rate ....Number in party.Twin-Bedded Room. Desired Rate .Maxinpum Rate.Suite ................ Desired Rate ......... Maxirpum Rate ........ Sharing this room will be:(Att#ch 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. .........

DAT, OF ARRIVAL ..... ............ DEPARTURE DATE .(These must be indicated-add approxiisate hour, a.m. or p.m.)

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ADDRESS ....................................(Street) (City aasd Zone ) ('State )

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

14 SCIENCE, Vol. 116

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Just

The, Chemistry and Physiologyof the Nucleus

Proceedings of the Symposium held August,1951 by the Biology Department. BrookhavenNational LaboratoryEXPERIMENTAL Cell Research, Supplement 2

Edited by V. T. BOWEN1952, xx, 402 pages, illus., cloth bound, $7.00

The subject matter of this volume was collectedoriginally as a symposium on nuclear chemistry andbiology. It was the Editor's aim in organizing thisconference to present various aspects of the growingbut limited knowledge of the non-genetic propertiesand activities of nuclei.

Contents:KURT G. STERN, Problems in Nuclear Chemistry and

BiologyJACK SCHULTZ, Interrelations between Nucleus and

Cytoplasm: Problems at the Biological LevelFELIX HAUROWITZ AND CHARLES F. CRAMPTON, The

Role of the Nucleus in Protein SynthesisARTHUR W. POLLISTER, Nucleoproteins of the NucleusM. J. MOSES, Quantitative Optical Techniques in the

Study of Nuclear ChemistryJOSEPH G. GALL, The Lampbrush Chromosomes of

Triturus ViridescensALEXANDER L. DOUNCE, The Enzymes of Isolated

NucleiALEX B. NOVIKOFF, Histochemical Demonstration of

Nuclear EnzymesFRANCIS BINKLEY, Evidence for the PolynucleotideNature of Cysteinylglycinase

D. F. POULSON AND V. T. BOWEN, Organization andFunction of the Inorganic Constituents of Nuclei

AARON BENDICH, Studies on the Metabolism of theNucleic Acids

G. R. WYATT, Specificity in the Composition ofNucleic Acids

GEORGE SCHOLES AND JOSEPH WEISS, Chemical Actioniof X-Rays on Nucleic Acids and Related Substancesin Aqueous Systems

A. H. SPARROW, M. J. MOSES, AND R. J. DUBOW, Re-lationships between Ionizing Radiation, Chromo-some Breakage and Certain Other Nuclear Dis-turbances

S. R. PELC AND ALMA HOWARD, Chromosome Metabo-lism as Shown by Autoradiographs

JOHN J. BIESELE, RUTH E. BERGER, MARILYN CLARKE,AND LESTER WEISS, Effects of Purines and OtherChemotherapeutic Agents on Nuclear Structure andFunction

SHINYA INOUE, The Effect of Colchicine on theMicroscopic and Submicroscopic Structure of theMitotic Spindle

EDWARD D. DELAMATER, M. E. HUNTER, AND STUARTMUDD, Current Status of the Bacterial Nucleus

FRANK W. PUTNAM, The Origin of Bacteriophage Ni-trogen, Carbon, and Phosphorus

LLOYD M. KOZLOFF, The Fate of the Infecting VirusParticle

ROLLIN D. HOTCHKISS, The Biological Nature of theBacterial Transforming Factors

Author Index

ACADEMIC PRESS INC.125 East 23 Street, New York 10, N. Y.

November 14, 1952

Published:I

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be. U.S. Pat. Of.

AMINO ACIDSacetyl DL-tryptophane

DL-alpha alaninebeta alanineL-alanine

DL alanyl-glycinenL-alpha-amino-n-butyric acid

i-arginine HydrochlorideD-asparagine monohydrate

DL-asparagineL-asparagine

D-aspartic acidDL-aspartic acidL-aspartic acid

betaine HydrochlorideL-canavananine flavianate 99% pure

L-carnosineDL-citrulline

creatin (anhydrous)creatinine

DL-cystathionineL-cysteine Hydrochloride-Cysteine (free base) C.P.

L-cystine3,5-diiodotyrosine

L-DopaDL-Dopa

djenkolic acidDL-ethionine

L-glutamic acidglutamine

glycine (aminoacetic acid)glycine ethyl ester Hydrochloride

glycylglycineglycyl-glycyl-glycineglycyl-DL-leucine

glycyl-L-tryptophaneglycyl-L-tyrosine

D-histidine HydrochlorideDL-histidine HydrochlorideL-histidine HydrochlorideL-histidine (free base)

DL-homocysteine (free base)DL-homocystineDL-homoserine

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|ill II IIIDIIIIII~II~ POSITIONS WANTEDBiochemist-Enzymologist, Ph.D., 33, Canadian, family. Sevenyears' research experience in microbial metabolism, bacterialvariation and enzyme formation. Two years' teaching. Strongbackground Organic Chemistry and Genetics. Publications.Languages. Available January 1953. Desires position in industrialresearch or development. Box 315, SCIENCE. 11/14, 11/21

Microbiologist. Ph.D., 38. Four years head research and develop-ment group. All phases of microbiology. Desire responsible positionwith future in progressive organization. Box 319, SCIENCE. X

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Position Wanted:Chemist; M.S., Ph.D.; three years' teaching, seven years, seniorchemist and production superintendent, industry; five years, re-search director, pharmaceutical company. For further information,please write Science Division, Medical Bureau, (Burneice Larson,Director), Palmolive Building, Chicago. X

Research Director for progressive, medium size manufacturer ofpharmaceutical chemicals and antibiotics. Five years' experience inindustrial research and some knowledge of biochemistry and phar-macology desirable but Ph.D. training in organic or pharmaceuticalchemistry essential. May now be a group leader or assistant direc-tor of research looking for wider opportunities. Send resume inconfidence, listing details of training, experience, and small photo.Salary: $12,000. All replies will be acknowledged. Box 320,SCIENCE. X

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THE RICKETTSIAL DISEASES OF MAN

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