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Science, New Series, Vol. 20, No. 520, Dec. 16, 1904


Previous Issue: New Series, Vol. 20, No. 519, Dec. 9, 1904
Next Issue: New Series, Vol. 20, No. 521, Dec. 23, 1904


Front Matter (2 pp.)
Some Problems in the Life History of Pathogenic Microorganisms, pp. 817-832
Theobald Smith


Scientific Books
Poincaré's 'Science and Hypothesis.', pp. 833-837
La Science et l'Hypothèse
H. Poincaré
Wissenschaft und Hypothese H. Poincaré. Autorisierte deutsche Ausgabe, mit erlauterenden Anmerkungen, von F. und L. Lindemann
Review author[s]: J. W. A. Young
The New Seismology, pp. 837-838
Review author[s]: G. K. Gilbert


Societies and Academies, pp. 838-842


Discussion and Correspondence
Convocation Week, pp. 842-844
Herman L. Fairchild
'The Problems of Experimental Psychology.', p. 844
E. B. Titchener


Special Articles
A Suggestion Looking towards Ultra-Microscopy, pp. 844-845
Cleveland Abbe
Extinct Pediculate and Other Fishes, pp. 845-846
Theo. Gill
The Re-Discovery of Dinomys, pp. 846-847
F. A. Lucas


Current Notes on Meteorology, pp. 847-848
R. DeC. Ward

Botanical Notes, pp. 848-850
Charles E. Bessey

College-Entrance Option in Zoology, pp. 850-853
C. M. Clapp; E. G. Conklin; C. W. Hargitt; J. S. Kingsley; M. A. Bigelow

The John Bell Scott Memorial of Wesleyan University, p. 853
The German Meteorological and Magnetic Observatory in the Samoan Islands, pp. 853-854
A Monument to J. W. Powell, p. 854
Scientific Notes and News, pp. 854-856
University and Educational News, p. 856

Previous Issue: New Series, Vol. 20, No. 519, Dec. 9, 1904
Next Issue: New Series, Vol. 20, No. 521, Dec. 23, 1904



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