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Science, New Series, Vol. 42, No. 1090, Nov. 19, 1915


Previous Issue: New Series, Vol. 42, No. 1089, Nov. 12, 1915
Next Issue: New Series, Vol. 42, No. 1091, Nov. 26, 1915


Front Matter (1 p.)
Biological Research; the Value and the Danger, pp. 701-712
Samuel S. Maxwell

The Errors in Precise Leveling Due to Irregular Atmospheric Refractions, pp. 712-718
William Bowie

Bessey Hall at the University of Nebraska, pp. 718-719
S. Avery

The Columbus Meeting of the American Association for the Advancement of Science, pp. 719-721
Scientific Notes and News, pp. 721-724
University and Educational News, pp. 724-725


Discussion and Correspondence
The Publication of New Species, pp. 725-726
Junius Henderson
The Effect of Cyanide on the Locust-Borer and the Locust-Tree, pp. 726-727
Wesley P. Flint
A New Mitotic Structure, p. 727
R. Goldschmidt
A Method of Maintaining a Supply of Protozoa for Laboratory Use, p. 727
J. B. Parker


Quotations
Science in National Affairs, pp. 727-729


Scientific Books
----------------, pp. 729-731
A Budget of Paradoxes
Augustus De Morgan
Review author[s]: Louis C. Karpinski
----------------, pp. 731-732
Scottish National Antarctic Expedition. Report on the Scientific Results of the Voyage of the Scotia, during the Years 1902-4
Review author[s]: Wm. H. Dall


Special Articles
The Calculation of Total Salt Content and of Specific Gravity in Marine Waters, pp. 732-735
Rodney H. True
On Cell Penetration by Acids, pp. 735-736
W. J. Crozier

Previous Issue: New Series, Vol. 42, No. 1089, Nov. 12, 1915
Next Issue: New Series, Vol. 42, No. 1091, Nov. 26, 1915



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