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Science, New Series, Vol. 51, No. 1316, Mar. 19, 1920


Previous Issue: New Series, Vol. 51, No. 1315, Mar. 12, 1920
Next Issue: New Series, Vol. 51, No. 1317, Mar. 26, 1920


Front Matter (1 p.)
Constructive Scientific Research by Cooperation, pp. 277-283
Burton E. Livingston

Suggestions for Ecologic Investigations in Vertebrate Zoology, pp. 283-287
Walter P. Taylor

The Attainment of High Levels in the Atmosphere, pp. 287-289
Alexander McAdie

The Separation of the Element Chlorine into Chlorine and Meta-Chlorine, pp. 289-291
William D. Harkins

Wilhelm Pfeffer, pp. 291-292
G. J. P.


Scientific Events
The Organization of Scientific Work in India, pp. 292-293
Portland Cement in 1919, p. 293
The Investigation of Fatigue Phenomena in Metals, pp. 293-294


Scientific Notes and News, pp. 294-295
University and Educational News, pp. 295-296


Discussion and Correspondence
Ionization and Radiation, p. 296
H. M. Dadourian
How Did Darwin Work?, pp. 296-297
T. D. A. Cockerell
A Convenient Demonstration Mounting for Jellyfishes, p. 297
N. M. Grier


Organization of the American Geophysical Union, pp. 297-299
Harry O. Wood


Special Articles
Is Unpalatable Food Properly Digested?, p. 299
Ralph C. Holder; Clarence A. Smith; Philip B. Hawk


The Western Society of Naturalists, pp. 299-300
John F. Bovard

The American Mathematical Society, p. 300
F. N. Cole

Back Matter (1 p.)

Previous Issue: New Series, Vol. 51, No. 1315, Mar. 12, 1920
Next Issue: New Series, Vol. 51, No. 1317, Mar. 26, 1920



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