Articles

 Removal of Oil Slicks on Oceans

Kenneth Hickman
Science 12 May 1967: 731.
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 Are Better Schools Better?

Alexander M. Mood, Murray Spitzer, David S. Stoller, and Frederic D. Weinfeld
Science 12 May 1967: 731-732.
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 Letter to the Editor

Irwin Katz
Science 12 May 1967: 732-734.
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 Letter to the Editor

Robert C. Nichols
Science 12 May 1967: 734-737.
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 Christian Impact on Ecology

Ernest S. Feenstra
Science 12 May 1967: 737.
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 Letter to the Editor

Lynn White, Jr.
Science 12 May 1967: 737-738.
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 Letter to the Editor

Renato Baserga
Science 12 May 1967: 738.
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 Letter to the Editor

Cesare Emiliani and Shale Niskin
Science 12 May 1967: 738.
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 Economics of Reprints

Miguel Mota
Science 12 May 1967: 738-739.
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 The Imperturbable Feline

H. W. Pittenger
Science 12 May 1967: 739.
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 Excessive Educational Pressures

Philip H. Abelson
Science 12 May 1967: 742.
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Sounder Thinking Through Clearer Writing

F. Peter Woodford
Science 12 May 1967: 743-745.
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 Librarians against Machines

Jesse H. Shera
Science 12 May 1967: 746-750.
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 International Cooperation: The New ICSU Program on Critical Data

Harrison Brown
Science 12 May 1967: 751-754.
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The National Standard Reference Data System

Edward L. Brady and Merrill B. Wallenstein
Science 12 May 1967: 754-762.
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 Proposal for an Institution for Scientific Judgment

Arthur Kantrowitz
Science 12 May 1967: 763-764.
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 Birth Control: U.S. Programs Off to Slow Start

Elinor Langer
Science 12 May 1967: 765-767.
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 France: First the Bomb, Then the "Plan Calcul"

John Walsh
Science 12 May 1967: 767-770.
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 NEWS IN BRIEF

Science 12 May 1967: 768.
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 Dædalus: Marking a Decade of Journeys from the Labyrinth

Bryce Nelson
Science 12 May 1967: 770-773.
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 Appointments

Science 12 May 1967: 773.
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 Recent Deaths

Science 12 May 1967: 773.
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 Book Reviews

Science 12 May 1967: 774-817.
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 Books Received

Science 12 May 1967: 817-875.
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Cliftonite in Meteorites: A Proposed Origin

Robin Brett and G. T. Higgins
Science 12 May 1967: 819-820.
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DDT Residues in an East Coast Estuary: A Case of Biological Concentration of a Persistent Insecticide

George M. Woodwell, Charles F. Wurster, Jr., and Peter A. Isaacson
Science 12 May 1967: 821-824.
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Bacteriophage S13: A Seventh Gene

Irwin Tessman, Hiromi Ishiwa, Santosh Kumar, and Ron Baker
Science 12 May 1967: 824-825.
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Optical Differentiation of Amoebic Ectoplasm and Endoplasmic Flow

W. R. Baker, Jr. and J. A. Johnston, Jr.
Science 12 May 1967: 825-826.
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Humoral Agent from Calf Lung Producing Pulmonary Arterial Vasoconstriction

Eugene D. Robin, Carroll E. Cross, J. Eugene Millen, and H. Victor Murdaugh, Jr.
Science 12 May 1967: 827-830.
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Geochemical Evidence of Present-Day Serpentinization

Ivan Barnes, V. C. LaMarche, Jr., and Glen Himmelberg
Science 12 May 1967: 830-832.
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Virus-Induced Erythropoiesis in Hypertransfused-Polycythemic Mice

E. A. Mirand
Science 12 May 1967: 832-833.
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Attention Shift and Errorless Reversal Learning by the California Sea Lion

Ronald J. Schusterman
Science 12 May 1967: 833-835.
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Maternal Behavior in the Domestic Cock under the Influence of Alcohol

Joseph K. Kovach
Science 12 May 1967: 835-837.
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 Tektites are Terrestrial?

Cicely M. Botley and A. Dauvillier
Science 12 May 1967: 837.
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 Transplutonium Elements

O. L. Keller, Jr.
Science 12 May 1967: 838-840.
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