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Science, New Series, Vol. 61, No. 1581, Apr. 17, 1925


Previous Issue: New Series, Vol. 61, No. 1580, Apr. 10, 1925
Next Issue: New Series, Vol. 61, No. 1582, Apr. 24, 1925


Front Matter (4 pp.)
Agricultural Research in Relation to the Community, pp. 399-403
A. D. Hall

Some Suggestions on Classification, pp. 403-405
Douglas Houghton Campbell

Guadalupe Island: An Object Lesson in Man-Caused Devastation, pp. 405-407
Laurence M. Huey

Roger Frederic Brunel, pp. 407-408
James F. Norris


Scientific Events
World Wheat Production, p. 408
The Transmutation of Mercury, pp. 408-409
The Royal Photographic Society, p. 409
A. J. Newton
The Eastern New York Section of the American Chemical Society, pp. 409-410
P.
A Notable Gift to Mathematics, p. 410
H. E. Slaught
The Daniel Giraud Elliot Medal, pp. 410-411
Henry Fairfield Osborn; Charles D. Walcott; Frederic A. Lucas


Scientific Notes and News, pp. 411-414
University and Educational Notes, p. 414


Discussion and Correspondence
The Extension of the Yucca Moth, pp. 414-415
L. H. Pammel
Noise and Hearing, p. 415
W. M. Smallwood
The Death of Archimedes, p. 415
Florian Cajori
Anti-Conservation Propaganda, pp. 415-416
Willard G. Van Name
The New Secretary of Agriculture as a Supporter of Scientific Research, p. 416
Robert K. Nabours


Scientific Books
----------------, pp. 416-419
Principles of General Physiology
William Maddock Bayliss
Review author[s]: Charles D. Snyder


Cancer in Plants and in Man, pp. 419-420
Erwin F. Smith


Special Articles
Notes on the Development of the Sea-Cucumber, Thyone briareus, pp. 420-422
Hiroshi Ohshima
Heteroplastic Grafts of the Anterior Limb-Level of the Cord in Amblystoma Embryos, pp. 422-423
H. L. Wieman
Chromosome Numbers in Mammals, pp. 423-424
Theophilus S. Painter


The American Mathematical Society, p. 424
W. Benjamin Fite

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 61, No. 1580, Apr. 10, 1925
Next Issue: New Series, Vol. 61, No. 1582, Apr. 24, 1925



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