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Science, Vol. 4, No. 93, Nov. 14, 1884


Previous Issue: Vol. 4, No. 92, Nov. 7, 1884
Next Issue: Vol. 4, No. 94, Nov. 21, 1884


Comment and Criticism, pp. 451-452


Letters to the Editor
Change in the Color of the Eye, p. 452
Theodore F. McCurdy
The Eggs of Ornithorhynchus, pp. 452-453
Theo Gill
Sun-Spots, p. 453
David P. Todd
The Numerical Measure of the Success of Predictions, pp. 453-454
C. S. Peirce
Measurement of the Speed of Photographic Drop-Shutters, p. 454
W. H. Pickering


The Importance of Chemistry in Biology and Medicine, pp. 454-456
The Navigation of the Nile, pp. 456-457
Chas P. Stone

A Mussulman Propaganda, pp. 457-459
W. H. Dall

The Ruby-Hill Mines, Eureka, Nev, pp. 459-460
Two Large Sun-Spots, pp. 460-461
New Volume of the Tenth Census, pp. 461-463
Minor Book Notices, pp. 463-464
Notes and News, pp. 464-466

Previous Issue: Vol. 4, No. 92, Nov. 7, 1884
Next Issue: Vol. 4, No. 94, Nov. 21, 1884



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