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Science, New Series, Vol. 87, No. 2264, May 20, 1938


Previous Issue: New Series, Vol. 87, No. 2263, May 13, 1938
Next Issue: New Series, Vol. 87, No. 2265, May 27, 1938


Front Matter (4 pp.)


The American Association for the Advancement of Science
Preliminary Announcement of the Ottawa Meeting, pp. 445-451
F. R. Moulton


Obituary
Maurice Crowther Hall, pp. 451-453
Benjamin Schwartz


Scientific Events
Science at the Empire Exhibition, Glasgow, p. 453
The Marine Biological Laboratory of Duke University, p. 454
The Committee on the Improvement of Science in General Education, pp. 454-455
Otis W. Caldwell
Awards of the Elizabeth Thompson Science Fund, p. 455
Conference on Spectroscopy at the Massachusetts Institute of Technology, p. 455
American Academy of Arts and Sciences, pp. 455-456


Scientific Notes and News, pp. 456-460


Discussion
A Colony of Albino Rats Existing under Feral Conditions, pp. 460-461
Jeff Minckler; F. D. Pease
Centripetal Drift: A Fallacy in the Evaluation of Therapeutic Results, pp. 461-462
Frederic T. Jung
The Concept of Atavism, pp. 462-463
M. F. Ashley-Montagu
Biological Abstracts Has Gone to Press, p. 463
George W. Hunter; Paul R. Burkholder; M. L. Raney


Quotations
Science and Society, pp. 463-464


The National Academy of Sciences. II
Abstracts of Papers, pp. 464-466


Special Articles
Concentration and Purification of Chicken Tumor I Agent, pp. 467-468
Albert Claude
An Estimate of the Relative Dimensions and Diffusion Constant of the Tobacco-Mosaic Virus Protein, pp. 468-469
Vernon L. Frampton; Hans Neurath
The Molecular Weight and Shape of Tobacco Mosaic Virus Protein, pp. 469-470
Max A. Lauffer
The Presence of Rare Earths in Hickory Leaves, p. 470
W. O. Robinson; Richard Whetstone; Bourdon F. Scribner


Science News, pp. 8a+10a-11a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 87, No. 2263, May 13, 1938
Next Issue: New Series, Vol. 87, No. 2265, May 27, 1938



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