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Science, New Series, Vol. 72, No. 1869, Oct. 24, 1930


Previous Issue: New Series, Vol. 72, No. 1868, Oct. 17, 1930
Next Issue: New Series, Vol. 72, No. 1870, Oct. 31, 1930


Front Matter (4 pp.)
Standardization Versus Medical Education, pp. 409-413
Charles R. Stockard

How the College Can Aid the Oyster Industries, pp. 413-416
Donald W. Davis


Obituary
Recent Deaths, p. 416
Memorials, p. 416


Scientific Events
The British Association for the Advancement of Science, pp. 416-417
F. O. Bower; J. C. Stamp; John L. Myres; F. J. M. Stratton; O. J. R. Howarth
The British Parasite Laboratory, pp. 417-418
The Iron Alloys Committee of the Engineering Foundation, pp. 418-419
Dedication of the James Ward Packard Laboratory at Lehigh University, p. 419
The Franklin Institute, pp. 419-420


Scientific Notes and News, pp. 420-422


Discussion
The Formation of Striae in a Kundt's Tube, pp. 422-423
Rolla V. Cook
A Hypothesis on the Causation of Cancer, pp. 423-424
Robert S. McCombs; Robert P. McCombs
The Magnetic Poles of the Earth and the Birth of the Moon, pp. 424-425
D. W. Longfellow
The Conception of Balance with Respect to the Absorption of Nitrogen, Phosphorus and Potassium by Plants and the Influence of the Level of Nutrition, pp. 425-427
Walter Thomas
The Organic World and the Causal Principle: A Criticism, pp. 427-429
M. N. Chappell; F. H. Pike


Special Correspondence
The Paleobotanical Excursion of the Fifth International Botanical Congress, p. 429
Chester A. Arnold
Summer Institute for Biological Research at Amoy, China, pp. 429-430
A. M. Boring


Quotations
Ward's Natural Science Establishment, pp. 430-431


Scientific Apparatus and Laboratory Methods
A Method for Working on the Terminal Nerve-Muscle Unit, pp. 431-433
Frederick H. Pratt; Marion A. Reid
A New Technique in Tree Medication for the Control of Bark Beetles, pp. 433-435
F. C. Craighead; R. A. St. George


Special Articles
A General Theory for Calculating Surface Tension from the Shapes of Stable Liquid Surfaces of Revolution, pp. 435-436
B. B. Freud; H. Z. Freud
"Right-Handedness" in White Rats, pp. 436-438
Loh Seng Tsai; Siegfried Maurer


Books Received, p. 438
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 72, No. 1868, Oct. 17, 1930
Next Issue: New Series, Vol. 72, No. 1870, Oct. 31, 1930



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