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Science, New Series, Vol. 61, No. 1573, Feb. 20, 1925


Previous Issue: New Series, Vol. 61, No. 1572, Feb. 13, 1925
Next Issue: New Series, Vol. 61, No. 1574, Feb. 27, 1925


Front Matter (4 pp.)


The American Association for the Advancement of Science
A Classification of Natural Resources, pp. 191-197
Nevin M. Fenneman


Memorial of Jacques Loeb, p. 198
W. E. Garrey

Memorial of Theodore Hough, pp. 198-199
W. H. Howell


Scientific Events
Scientific Expeditions Planned by Field Museum of Natural History for the Year 1925, pp. 199-200
D. C. Davies
Meeting of the International Union of Scientific Radio, pp. 200-201
Meeting of the Association of American Medical Colleges, pp. 201-202
Grants of the American Association for the Advancement of Science in Aid of Research, p. 202
Burton E. Livingston


Scientific Notes and News, pp. 202-205
University and Educational Notes, pp. 205-206


Discussion and Correspondence
The Undertow Myth, pp. 206-208
W. M. Davis
Triploidy in the Tomato, p. 208
J. W. Lesley; Margaret C. Mann
Moseleyum, pp. 208-209
Richard Hamer
Muscle Shoals vs. Mussel Shoals, p. 209
Gerard H. Matthes


Scientific Books
----------------, pp. 209-212
The Life, Letters and Labours of Francis Galton
Karl Pearson
Review author[s]: Raymond Pearl


Special Articles
Chromosomes and Sex in Sciara, pp. 212-214
Chas. W. Metz
The Effect of Light on the Permeability of Lecithin, pp. 214-215
S. C. Brooks


The Mineralogical Society of America, pp. 215-216
The Western Meeting of the American Mathematical Society, p. 216
Arnold Dresden

Meeting of the Utah Academy of Sciences, p. 216
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 61, No. 1572, Feb. 13, 1925
Next Issue: New Series, Vol. 61, No. 1574, Feb. 27, 1925



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