8 December 1972

Vol. 178, No. 4064

LETTERS Federal Project Grants: C. M. Blair; The Hue Massacre: E. Farrell; MarvinGardens Revisited: A. M. Reiner and E. Becker; Ideal Setting: L. E. Fay;High Voltage Accelerators: J. C. D. Milton; K. R. Chapman ............. 1041

EDITORIAL Adjusting to Normal Times: R. S. Morison ............................. 1045

ARTICLES Superheavy Elements: S. G. Thompson and C. F. Tsang ................... 1047

Invertebrate Facultative Anaerobiosis: P. W. Hochachka and T. Mustafa ... ..... 1056

Operations Research: Some Contributions to Mathematics: T. L. Saaty .......... 1061

NEWS AND COMMENT

RESEARCH NEWS

BOOK REVIEWS

AMA: Specialty Journals Must Lure Paying Subscribers ..................... 1070

New York University: Learning to Live with Red Ink ...................... 1072

Los Alamos: 30 Years after, Life Begins-in Earnest ......................... 1075

Conservation of Energy: The Potential for More Efficient Use ..... . . . . . . . . . . 1079

The Ecology of Animals, reviewed by C. J. Krebs; The Chemistry and Biochemistryof Nitrogen Fixation, C. C. Delwiche; Annual Review of Biophysics andBioenginecring, H. W. Shipton; Hillslope Form and Process, S. A. Schumm;Phytochemical Ecology, P. Feeny; The Great Ocean Business, H. W. Menard;Submillimetre Spectroscopy, A. J. Sievers; Physics of the Solar Corona,H. Zirin; Monographie der Familie Platypodidae, Coleoptera, S. L. Wood;Molecular and Cellular Repair Processes, R. F. Kimball; The Biochemistry ofAnimal Fossils, T. J. M. Schop f...............................

REPORTS Galilean Satellites: Identification of Water Frost: C. B. Pilc/ler, S. T. Ridgway,T. B. McCord ........................................................

Internal Gravity Wave-Atmospheric Wind Interaction: A Cause of Clear AirTurbulence: K. Bekofske and V. C. Liu ....................................

BOARD OF DIRECTORW11 -...7MINA REESRetiring President. Chairman

MATHEMATICS (A)John W. TukeyF. A. Ficken

GLENN t. SEABORG LEONARD R1ESER D"ID BLACKWELL LEWIS M. BRNS

PeidetM Peidt EIect RICHARD H. BOT; BARRY COMMONER

PHYSICS (B) CHEMISTRY (C) ASTRONOMY (D)144hai6 Aisman Martin Paul Field

ALASKA DIVISIONGordobn Harrison Irma DuncanPresident Executive Secretary

PACIFIC DIVISIONJohn D. Isaacs Robert C. Miller

:President S0 0 0 ecrtary

SOUTAWSR MMID ROCKY MOUTWAIN DIVI*J. Linton Gadnio"er: Marlowe G. AndersonPresident0 I: : Executive Secretary

1082

1087

1089

DC*lIVEONS

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AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE

Obsidian Trade Routes in the Mayan Area: A. IlJa,'itonid ..........................1092

Saltbush Leaves: Excision of Hypersaline Tissue by a Kangaroo Rat: G. J. Kenagv... 1094

Running Up and Down Hills: Some Consequences of Size: C. R. Taylor,S. L. Caldwvell, V. J. Roivntree .............................,,.,.1096

Type C Virus from Cell Cultures of Chemically Induced Rat Hepatomas:1. B. Weintsteitn et al.. 1098

Ceramidase Deficiency in Farber's Disealse (Lipogralnulomatosis): Al. Slugita,J. T. Dulaney, H. W. Moser . 1100

Adrenergir and Cholinergic Innerviation of the Hamster Harderian Gland:J. E. ANorvell and J. W. Claboigli .1102

Cat Hemoglobin: pH-Dependent Cooperativity of Oxygen Binding:M. N. Hamzilton and S. J. Edeistei.l .1104

Visual Receptive Fields Sensitive to Absolute and Relative Motion during Tracking:B. Braidgeian .1106

Object Distance as a Determinant of Visual Fixation in Early Infancy:B. E. McKenizie and R. H. Day .1108

VisuLal Input to the Pontine Nuclei: AM. Glickstein, J. Steinz, R. A. King .1110

Circadian Involvement in Termination of the Refractory Period in Two Sparrows:F. W. Tur-ek .. 1112

Summated Cortical Evoked Response Testing in the Deafferented Primate:R. Colzz, A. Jakniuinlas, E. Taub .. 1113

Technical Comnmients: Electrodynamic Sailing: Beating into the Solar Wind:C. P. Soniett; U. Fallesoni and H. Alfiein; Time Reversal and Irreversibility:B. Gal-Or; R. G. Saclis; Priority and Stability in Zoological Nomenclature:Resolution of the Problem of Article 23b at the Monaco Congress: J. 0. Corlis.sFluidity of Simple Fluids-Reply to a Criticism: J. H. Hildebrlazd; Rats DrinkLess Cool Water: A Change in the Taste of Water?: L. M. Baltosliuk;G. Kapatos and R. M. Gold .1115

MEETINGS Organization of Energy-Transducing Membranes: Report of a Joint Japan-UnitedStates Seminar: L. Packer and M. Nakao; Astronomy and Air Pollution:P. W. Hodge, N. Lan/laimeni, R. J. Charlsoni; Forthcoming Events . . . . . . . . . 1122

ARD H. GOODENOUGH DANIEL P. MOYNIHAN WILLIAM T. GOLDEN WILLIAM BEVAN'ARYL P. HASKINS PHYLLIS V. PARKINS Treasurer Executive Officer

JEOLOGY AND GEOGRAPHY (E) BIOLOGICAL SCIENCES (FG) ANTHROPOLOGY (H)Frank C. Whitmore Ian Sussex Richard N. AdamsWilliam E. Benson Richard J. Goss Anthony LeedsENGINEERING (M) MEDICAL SCIENCES (N) DENTISTRY (Nd)Newman A. Hall Robert W. Berliner Joseph L. HenryRaynor L. Duncombe F. Douglas Lawrason Sholom PearlmanINFORMATION AND STATISTICS (U) ATMOSPHERIC AND HYDROSPHERICCOMMUNICATION (T) W. Duane Evans SCIENCES (W)Andrew A. Aines Ezra Glaser John A. Knauss

Scott Adams Louis J. Battan

COVER

Cross section (25 pm) of leaf of saltbush (about x 300). (Insert) GreatBasin or chisel-toothed rat on thetop of a spiny saltbush. Most kan-garoo rats forage for seeds in thesoil, but this species is an aborealleaf forager. See page 1094. [G. J.Kenagy, University of California,Los Angeles]

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