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Science, New Series, Vol. 54, No. 1396, Sep. 30, 1921


Previous Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921
Next Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921


Front Matter (1 p.)


The British Association for the Advancement of Science
Problems of Physics, pp. 283-291
O. W. Richardson


Scientific Abstracting, pp. 291-295
Gordon S. Fulcher


Scientific Events
The National Committee on Mathematical Requirements, pp. 295-296
Henry Woodward, p. 296
J. M. C.
Professor Pawlow, pp. 296-297


Scientific Notes and News, pp. 297-300
University and Educational News, p. 300


Discussion and Correspondence
A New Definition of Pure Mathematics, pp. 300-301
G. A. Miller
Gall Evolution: A New Interpretation, p. 301
B. W. Wells
On Sounds Accompanying Auroral Displays, pp. 301-302
Heber D. Curtis
Lawrence's Warbler, p. 302
Jas. Lewis Howe


Quotations
Chemistry in War, pp. 302-303


Scientific Books
Bibliography of Relativity, pp. 303-304
Review author[s]: Frederick E. Brasch


Special Articles
Einstein's Cosmological Equations, pp. 304-305
Edward Kasner
The Production of Enhanced Line Spectra by a New Method, pp. 305-306
R. A. Sawyer; A. L. Becker


The Iowa Academy of Science, pp. 306-310
James H. Lees

Previous Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921
Next Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921



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