Articles

 Antiwar Statement

Pierre Noyes
Science 6 August 1971: 475.
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 Overpopulation

Thomas H. Jukes
Science 6 August 1971: 475.
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 Man and the Biosphere

T. C. Byerly
Science 6 August 1971: 475-476.
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 Science for Nonscientists

Sam G. Collins
Science 6 August 1971: 476.
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 Letter to the Editor

Morris Goran
Science 6 August 1971: 476.
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 Making Faces across the Gulf..

Nancy Hanks
Science 6 August 1971: 479.
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The Beginnings of Experimental Petrology

Hans P. Eugster
Science 6 August 1971: 481-489.
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 Relevance of Particle Accelerators to National Goals

Louis Rosen
Science 6 August 1971: 490-497.
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 The Economist's Approach to Pollution and Its Control

Robert M. Solow
Science 6 August 1971: 498-503.
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 Narcotic Antagonists: New Methods to Treat Heroin Addiction

Allen L. Hammond
Science 6 August 1971: 503-506.
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 Addict Treatment Programs

A. L. H.
Science 6 August 1971: 504.
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 Health Radicals: Crusade to Shift Medical Power to the People

Robert J. Bazell
Science 6 August 1971: 506-509.
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 Lead Poisoning: Risks for Pencil Chewers?

Joe Pichirallo
Science 6 August 1971: 509-510.
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 APPOINTMENTS

Science 6 August 1971: 510.
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 Tools for Archeology: Aids to Studying the Past

Allen L. Hammond
Science 6 August 1971: 511-512.
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 Book Reviews

Science 6 August 1971: 513-515.
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 Books Received

Science 6 August 1971: 515-516.
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Reduction of Stratospheric Ozone by Nitrogen Oxide Catalysts from Supersonic Transport Exhaust

Harold Johnston
Science 6 August 1971: 517-522.
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Apples in a Spacecraft

Hannes Alfvén
Science 6 August 1971: 522-525.
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Rapidly Changing Radio Images

A. Cavaliere, P. Morrison, and L. Sartori
Science 6 August 1971: 525-528.
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Gulf Stream and Middle Atlantic Bight: Complex Thermal Structure as Seen from an Environmental Satellite

P. K. Rao, A. E. Strong, and R. Koffler
Science 6 August 1971: 529-530.
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Rifting in Iceland: New Geodetic Data

R. W. Decker, Páll Einarsson, and P. A. Mohr
Science 6 August 1971: 530-533.
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Quartz: Synthesis at Earth-Surface Conditions

Fred T. Mackenzie and Rudi Gees
Science 6 August 1971: 533-535.
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Ultrahigh-Frequency Electromagnetic Fields for Weed Control: Phytotoxicity and Selectivity

F. S. Davis, J. R. Wayland, and M. G. Merkle
Science 6 August 1971: 535-537.
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Free Radical Inhibitory Effect of Some Anticancer Compounds

K. K. Georgieff
Science 6 August 1971: 537-539.
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Adenosine 3',5'-Monophosphate Phosphodiesterase: Multiple Molecular Forms

Eirik Monn and Robert O. Christiansen
Science 6 August 1971: 540-542.
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Human Lymphocyte Antigen Reactivity Modified by Neuraminidase

Emily A. Grothaus, M. Wayne Flye, Emund Yunis, and D. B. Amos
Science 6 August 1971: 542-544.
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Oxidative N-Dealkylation: A Mannich Intermediate in the Formation of a New Metabolite of Lidocaine in Man

George D. Breck and William F. Trager
Science 6 August 1971: 544-546.
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Regional Blood-Flow Changes during 72-Hour Avoidance Schedules in the Monkey

Ralph P. Forsyth
Science 6 August 1971: 546-548.
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Contraction of Granulation Tissue in vitro: Similarity to Smooth Muscle

G. Majno, G. Gabbiani, B. J. Hirschel, G. B. Ryan, and P. R. Statkov
Science 6 August 1971: 548-550.
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Bilateral Symmetry and Interneuronal Organization in the Buccal Ganglia of Aplysia

Daniel Gardner
Science 6 August 1971: 550-553.
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C1 Inhibitor: Evidence for Decreased Hepatic Synthesis in Hereditary Angioneurotic Edema

A. Myron Johnson, Chester A. Alper, Fred S. Rosen, and John M. Craig
Science 6 August 1971: 553-554.
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Ammonium and Chloride Extrusion: Hyperpolarizing Synaptic Inhibition in Spinal Motoneurons

H. D. Lux
Science 6 August 1971: 555-557.
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 Flux of Micrometeoroids: Lunar Sample Analyses Compared with Flux Model

J. S. Dohnanyi
Science 6 August 1971: 558.
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 Relation of Sunspot and Earthquake Activity

John Gribbin
Science 6 August 1971: 558.
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