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Science, New Series, Vol. 113, No. 2931, Mar. 2, 1951


Previous Issue: New Series, Vol. 113, No. 2930, Feb. 23, 1951
Next Issue: New Series, Vol. 113, No. 2932, Mar. 9, 1951


Front Matter (1 p.)
College Enrollment, pp. 3a
Dael Wolfle

The Alaskan Science Conference, pp. 223-227
John C. Reed; Harold J. Coolidge

Toward a Clearer Concept of Osmotic Quantities in Plant Cells, pp. 228-231
J. Levitt


Technical Papers
The Breeding Site of Drosophila lacicola Patterson, p. 232
Herman T. Spieth
An Improved Micromanipulator for Cellular Micrurgy, pp. 232-234
M. J. Kopac
Constitutional Factors in Resistance to Infection: The Effect of Cortisone on the Pathogenesis of Tuberculosis, pp. 234-237
Max B. Lurie; Peter Zappasodi; Arthur M. Dannenberg; Irene B. Swartz
The Adaptive Increase of the Tryptophan Peroxidase-Oxidase System of Liver, pp. 237-238
W. E. Knox; Alan H. Mehler
Experiments on the Catalytic Exchange of Acetone and Propane with Deuterium, pp. 238-241
Lois Nash Kauder; T. I. Taylor
Adrenal Cholesterol in the Scorbutic Guinea Pig, pp. 241-242
M. Jane Oesterling; C. N. H. Long
A Universal Motion Analyzer Applied to Psychomotor Performance, pp. 242-244
Karl U. Smith; Robert Wehrkamp
Investigation of the Forms of Phosphorus in Neutron-Bombarded Phosphates: Role of Hypophosphate, pp. 244-246
J. G. A. Fiskell


Comments and Communications
Successful Transplantation of a Fertilized Bovine Ovum, p. 247
E. L. Willett; W. G. Black; L. E. Casida; W. H. Stone; P. J. Buckner
Two Points of View, pp. 247-248
Saul W. Rosen; Edmund W. Gelewitz; Frederick Romberg
Perfection None Must Hope to Find, pp. 248-249
Arnold W. Ravin
A Return to Medievalism in Science Teaching, pp. 249-250
Philip Goldstein; Henry Pollet
Mass Mortality and Dinoflagellate Blooms in the Gulf of Mexico, pp. 250-252
Gordon Gunter; Joel W. Hedgpeth; D. A. Hooijer; C. H. Connell; Joy Barnes Cross
Addendum: The International Oxford Conference on Nuclear Physics, p. 252
Erratum: Relationships with Vitamin B12, p. 252


Book Reviews
----------------, p. 253
Childhood and Society
Erik H. Erikson
Review author[s]: Sibylle Escalona
----------------, pp. 253-254
Structural Chemistry of Inorganic Compounds
Walter Hückel
Review author[s]: Wendell M. Latimer
----------------, p. 254
Radio Communication at Ultra High Frequency
John Thomson
Review author[s]: J. M. Lafferty


News and Notes, pp. 255-260

Previous Issue: New Series, Vol. 113, No. 2930, Feb. 23, 1951
Next Issue: New Series, Vol. 113, No. 2932, Mar. 9, 1951



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