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Science, New Series, Vol. 113, No. 2936, Apr. 6, 1951


Previous Issue: New Series, Vol. 113, No. 2935, Mar. 30, 1951
Next Issue: New Series, Vol. 113, No. 2937, Apr. 13, 1951


Front Matter (1 p.)
Science and the State Department, pp. 3a
J. B. Koepfli

The Australian National University, pp. 375-376
Douglas Copland


Technical Papers
A Purification of the Active Principle of Short Ragweed Pollen, pp. 377-378
Theodore B. Bernstein; Anne L. Mosher; Raymond P. Mariella
The Mg Content of Various Nucleic Acid Compounds, pp. 378-379
Gunnar Jungner
Sound Recording and the Problem of Evidence in Psychiatry, pp. 379-380
Eugene B. Brody; Richard Newman; Fredrick C. Redlich
Some Effects of High Velocity Electrons on Wood, pp. 380-382
E. J. Lawton; W. D. Bellamy; R. E. Hungate; M. P. Bryant; E. Hall
The Determination of Cholinesterase Activity in Whole Brains of Developing Rats, pp. 382-383
Charles J. Metzler; Douglas G. Humm
The Effect of Radiations on Galactozymase Formation in Yeast, pp. 383-384
C. L. Brandt; P. J. Freeman; P. A. Swenson
A Special Cannula for Determination of Blood Flow in the Left Common Coronary Artery of the Dog, pp. 385-386
R. W. Eckstein; J. A. McEachen; J. Demming; W. B. Newberry
Development Abnormalities in Chick Embryos Treated with Sugar, pp. 386-387
Ernest L. Hunt
Quantitative Microdetermination of Amino Acids after Paper Chromatography, pp. 387-388
A. Pereira; J. A. Serra
Evidence for the Heparin Nature of the Nonspecific Hyaluronidase Inhibitor in Tissue Extracts and Blood Serum, pp. 388-389
David Glick; Bengt Sylvén
Control of Covered Smut of Oats by Seed Treatment with an Antibiotic, p. 390
A. W. Henry; E. A. Peterson; R. L. Millar; J. S. Horricks


Comments and Communications
Volcanism--A Contributing Factor to Major Change in Sea Level, p. 391
Elwood C. Zimmerman
Antiquity of Man in America Demonstrated by the Fluorine Test, pp. 391-392
T. D. Stewart
The Formation of Free Alkoxy (RO·) Radicals in Solution, p. 392
M. S. Kharasch; W. Nudenberg; F. Arimoto
Formation of Colloidal Sulfur, p. 392
John O. Edwards


Book Reviews
----------------, p. 393
Culture in Crisis: A Study of the Hopi Indians
Laura Thompson
Review author[s]: M. F. Ashley Montagu
----------------, p. 393
Dirichlet's Principle, Conformal Mapping, and Minimal Surfaces
R. Courant
Review author[s]: D. C. Spencer
----------------, pp. 393-394
Scientific Russian: A Textbook for Classes and Self-Study
James W. Perry
Review author[s]: G. M. Kosolapoff


Scientific Book Register, p. 394
News and Notes, pp. 395-398

Previous Issue: New Series, Vol. 113, No. 2935, Mar. 30, 1951
Next Issue: New Series, Vol. 113, No. 2937, Apr. 13, 1951



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