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Science, New Series, Vol. 38, No. 990, Dec. 19, 1913


Previous Issue: New Series, Vol. 38, No. 989, Dec. 12, 1913
Next Issue: New Series, Vol. 38, No. 991, Dec. 26, 1913


Front Matter (1 p.)
On the Nature of Mathematical and Scientific Demonstration, pp. 863-871
R. D. Carmichael

Recollections of Dr. Alfred Russel Wallace, pp. 871-877
T. D. A. Cockerell

Scientific Notes and News, pp. 877-880
University and Educational News, pp. 880-881


Discussion and Correspondence
More Paleolithic Art, p. 881
George Grant MacCurdy
On Interference Colors in Clouds, pp. 881-882
Robert H. Goddard
Origin of Mutations, pp. 882-883
R. A. Emerson
How Oryctes Rhinoceros, a Dynastid Beetle, Uses Its Horn, p. 883
R. W. Doane
Science and the Newspaper, pp. 883-884
Francis E. Nipher
The Industrial Fellowships at Pittsburgh, p. 884
J. F. Snell


Scientific Books
----------------, pp. 884-885
Untersuchungen ueber Chlorophyll. Methoden und Ergebnisse von Richard Willstaetter und Arthur Stoll
Review author[s]: E. K.
----------------, pp. 885-887
The Principles of Stock-Breeding
James Wilson
Review author[s]: H. H. Laughlin
----------------, pp. 887-888
The First Principles of Evolution
S. Herbert
Review author[s]: J. P. McM.


Special Articles
On Fundamental Methods of Orientation and ``Imaginary Maps'', pp. 888-897
C. C. Trowbridge


The Convocation Week Meeting of Scientific Societies, pp. 897-899
Societies and Academies, pp. 899-900

Previous Issue: New Series, Vol. 38, No. 989, Dec. 12, 1913
Next Issue: New Series, Vol. 38, No. 991, Dec. 26, 1913



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