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Science, New Series, Vol. 41, No. 1047, Jan. 22, 1915


Previous Issue: New Series, Vol. 41, No. 1046, Jan. 15, 1915
Next Issue: New Series, Vol. 41, No. 1048, Jan. 29, 1915


Front Matter (1 p.)


The American Association for the Advancement of Science
The Object of Astronomical and Mathematical Research, pp. 109-117
Frank Schlesinger


The Place of Forestry Among Natural Sciences, pp. 117-127
Henry S. Graves

Mathematics, Astronomy and Physics at the California Meeting, p. 127
Scientific Notes and News, pp. 127-131
University and Educational News, p. 131


Discussion and Correspondence
Occurrence of Silver Scurf of Potatoes in the Salt Lake Valley, Utah, pp. 131-132
P. J. O'Gara
A Simple Device for Counting Seeds, p. 132
Orton L. Clark
The Journal ``Isis'', pp. 132-133
David Eugene Smith


Scientific Books
----------------, pp. 133-134
Anesthesia
James Tayloe Gwathmey; Charles Baskerville
Review author[s]: J. H. Long
----------------, p. 134
Food Products
Henry C. Sherman
Review author[s]: Isabel Bevier
----------------, p. 135
The Naturalist's Directory
Review author[s]: J. C. Branner


Fraternity Grades at Purdue University, pp. 135-138
C. H. Benjamin

How Can We Advance the Scientific Character of the Work Done in the American Agricultural Experiment Stations?, pp. 138-141
Samuel Bradford Doten


Special Articles
A Device for Projecting a Small Spot of Light Suitable for Exploring Photosensitive Areas, pp. 141-142
Bradley M. Patten


The American Physiological Society, pp. 142-144
A. J. Carlson

The American Mathematical Society, pp. 144-145
F. N. Cole

Societies and Academies, pp. 145-146

Previous Issue: New Series, Vol. 41, No. 1046, Jan. 15, 1915
Next Issue: New Series, Vol. 41, No. 1048, Jan. 29, 1915



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