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Science, New Series, Vol. 123, No. 3191, Feb. 24, 1956


Previous Issue: New Series, Vol. 123, No. 3190, Feb. 17, 1956
Next Issue: New Series, Vol. 123, No. 3192, Mar. 2, 1956


Front Matter (2 pp.)
Science and the Open Channel, p. 307
R. P. Feynman

On the Origin of Cancer Cells, pp. 309-314
Otto Warburg

Molecular Engineering, pp. 315-317
A. von Hippel


News of Science
AAAS Headquarters, p. 318
Radiation in Emission Nebula, p. 318
$2,657,434 for Medical Schools, p. 318
Size of the Antiproton, p. 318
News Briefs, pp. 318-319
Scientists in the News, pp. 319-320
Recent Deaths, p. 320
Education, pp. 320-322
Grants, Fellowships, and Awards, p. 322
In the Laboratories, pp. 322-323
Miscellaneous, p. 323
Errata: Pronuclear Fusion as Affected by X-Rays and by Postirradiation Anaerobiosis, p. 323
Errata: Magnetic Techniques for in vitro Isolation of Leucocytes, p. 323


Reports and Letters
Lowered P/O Ratios with Mitochondria Isolated from Livers Showing Cloudy Swelling, p. 324
A. Fonnesu; Clara Severi
2-Methyl Hydrocortisones: A New Series of Steroids with Enhanced Potency and Prolonged Action, pp. 324-325
Grant W. Liddle; June E. Richard
Oral Phosphatase Levels and Caries Activity, pp. 325-326
William J. Carter; Kirk C. Hoerman; Harold R. Englander; Irving L. Shklair
Possible Function of Serum Proteins in Tissue Culture, pp. 326-327
Leon S. Vann
Early Man and Fossil Bison, pp. 327-328
Richard G. Forbis
Quantitative Infrared Spectroscopy of Desoxyribonucleic Acid in the Fractional Milligram Range, pp. 328-329
Henry P. Schwarz; R. Childs; L. Dreisbach; S. V. Mastrancelo
Directional Differences in Pigeon Homing, pp. 329-330
Gustav Kramer; J. G. Pratt; Ursula von St. Paul
Formation Constants for Cu(II)-Peat Complexes, pp. 330-331
N. T. Coleman; A. C. McClung; David P. Moore
Modification of Electric Activity in Cochlear Nucleus during "Attention" in Unanesthetized Cats, pp. 331-332
Raúl Hernández-Peón; Harald Scherrer; Michel Jouvet
Effect of Barbiturates on Acetylation, pp. 332-333
Bernard H. Marks
Color Autoradiography, p. 333
G. W. Buckaloo; David V. Cohn


Book Reviews
----------------, p. 334
Weeds
W. C. Muenscher
Review author[s]: Lawrence J. King
----------------, pp. 334-335
Schools of Psychoanalytic Thought. An Exposition, Critique, and Attempt at Integration
Ruth L. Munroe
Review author[s]: John Dollard
----------------, p. 335
Surgical Procedures on the Gastrointestinal Tract of Animals in Preparation for Chronic Experiments
E. N. Speranskaya
Review author[s]: Samuel A. Corson
----------------, pp. 335-336
Reports on Progress in Physics. vol. XVIII
A. C. Stickland
Review author[s]: Richard Schlegel
----------------, p. 336
Fifth Symposium (International) on Combustion. Combustion in Engines and Combustion Kinetics. Standing Committee on Combustion Symposia of the Combustion Institute
Review author[s]: Frederick J. Bordt
Misccllaneous Publications, p. 336


Scientific Meetings, pp. 337-339
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 123, No. 3190, Feb. 17, 1956
Next Issue: New Series, Vol. 123, No. 3192, Mar. 2, 1956



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