Articles

 Deep-Sea Drilling

Luke W. Finlay
Science 21 December 1973: 1194.
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 Nitrites in Foods

W. Lijinsky
Science 21 December 1973: 1194-1196.
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 Journal Evaluation

N. C. Janke
Science 21 December 1973: 1196-1197.
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 Letter to the Editor

R. W. Bide
Science 21 December 1973: 1197.
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 Letter to the Editor

Eugene Garfield
Science 21 December 1973: 1197-1198.
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 Mesoamerican Calendar

Vincent H. Malmstrom
Science 21 December 1973: 1198.
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 Regulation of Human Experimentation

Amitai Etzioni
Science 21 December 1973: 1203.
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Disposal of Nuclear Wastes: At an increased but still modest cost, more options can be explored and the outlook can be improved

Arthur S. Kubo and David J. Rose
Science 21 December 1973: 1205-1211.
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Tropical Agroecosystems: These habitats are misunderstood by the temperate zones, mismanaged by the tropics

Daniel H. Janzen
Science 21 December 1973: 1212-1219.
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The Colossi of Memnon Revisited: Recent research has established the source of the stone of the two 720-ton statues at Thebes

R. F. Heizer, F. Stross, T. R. Hester, A. Albee, I. Perlman, F. Asaro, and H. Bowman
Science 21 December 1973: 1219-1225.
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 Energy Organization: Love's Labour's Lost

Robert Gillette
Science 21 December 1973: 1225-1226.
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 Mapping: Shadow of the Big Bird Hovers over Mappers, OMB Report

Deborah Shapley
Science 21 December 1973: 1226-1229.
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 NEWS & NOTES

Science 21 December 1973: 1228.
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 Addiction Research Center: Pioneers Still on the Frontier

John Walsh
Science 21 December 1973: 1229-1231.
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 Genetic Erosion: Crop Plants Threatened by Government Neglect

Judith Miller
Science 21 December 1973: 1231-1233.
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 Bevan to Leave AAAS

N. W.
Science 21 December 1973: 1233.
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 Gamma Rays: From Neutron Stars, Supernovas, or "Beebees"?

William D. Metz
Science 21 December 1973: 1234-1237.
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 By Jupiter!

W. D. M.
Science 21 December 1973: 1235.
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 Breeder Program: Bethe Panel Calls for Reorientation

Allen L. Hammond
Science 21 December 1973: 1236-1237.
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 Book Reviews

Science 21 December 1973: 1238-1241.
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Taxonomic and Environmental Stability in the Paleozoic

Charles W. Thayer
Science 21 December 1973: 1242-1243.
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Fossil Spores, Pollen, and Fishes from Connecticut Indicate Early Jurassic Age for Part of the Newark Group

Bruce Cornet, Alfred Traverse, and Nicholas G. McDonald
Science 21 December 1973: 1243-1247.
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Methylated Forms of Arsenic in the Environment

Robert S. Braman and Craig C. Foreback
Science 21 December 1973: 1247-1249.
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Hypertensive Action of 18-Hydroxydeoxycorticosterone

J. T. Oliver, M. K. Birmingham, A. Bartova, M. P. Li, and T. H. Chan
Science 21 December 1973: 1249-1251.
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Spiroplasmas and Acholeplasmas: Multiplication in Insects

R. F. Whitcomb, J. G. Tully, J. M. Bové, and P. Saglio
Science 21 December 1973: 1251-1253.
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Membrane Fatty Acids Associated with the Electrical Response in Visual Excitation

R. M. Benolken, Robert E. Anderson, and Thomas G. Wheeler
Science 21 December 1973: 1253-1254.
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Procion Brown: An Intracellular Dye for Light and Electron Microscopy

Burgess N. Christensen
Science 21 December 1973: 1255-1256.
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Neuron Geometry and Circuitry via the Electron Microscope: Intracellular Staining with Osmiophilic Polymer

Rhanor Gillette and Bruce Pomeranz
Science 21 December 1973: 1256-1258.
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Diffusion of Weak Acids across Lipid Bilayer Membranes: Effects of Chemical Reactions in the Unstirred Layers

John Gutknecht and D. C. Tosteson
Science 21 December 1973: 1258-1261.
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Mapping Human Autosomes: Assignment of the MN Locus to a Specific Segment in the Long Arm of Chromosome No. 2

James German and R. S. K. Chaganti
Science 21 December 1973: 1261-1262.
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Aquatic Respiration: An Unusual Strategy in the Hellbender Cryptobranchus alleganiensis alleganiensis (Daudin)

Robert W. Guimond and Victor H. Hutchison
Science 21 December 1973: 1263-1265.
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Polymorphism in Plastosciara perniciosa

Wallace A. Steffan
Science 21 December 1973: 1265-1266.
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Neurons of the Hypothalamus Concentrate [³H]Progesterone or Its Metabolites

Madhabananda Sar and Walter E. Stumpf
Science 21 December 1973: 1266-1268.
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Phosphate-Induced Protein Chromatography

Ronald A. Rimerman and G. Wesley Hatfield
Science 21 December 1973: 1268-1270.
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Evolution and the Biosynthesis of Ascorbic Acid

I. B. Chatterjee
Science 21 December 1973: 1271-1272.
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Encoding of Geographic Dialects in the Auditory System of the Cricket Frog

Robert R. Capranica, Lawrence S. Frishkopf, and Eviatar Nevo
Science 21 December 1973: 1272-1275.
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Flexible System for the Diagnosis of Schizophrenia: Report from the WHO International Pilot Study of Schizophrenia

William T. Carpenter, Jr., John S. Strauss, and John J. Bartko
Science 21 December 1973: 1275-1278.
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Phonotaxis of Crickets in Flight: Attraction of Male and Female Crickets to Male Calling Songs

S. M. Ulagaraj and Thomas J. Walker
Science 21 December 1973: 1278-1279.
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 Science, San Francisco, and Health Care

Paul Ward
Science 21 December 1973: 1280-1281.
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 SCIENCEPHERE '74

Science 21 December 1973: 1281.
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 ADVANCE REGISTRATION FORM

Science 21 December 1973: 1282-1283.
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