Sharpe, Benjamin F. An Advance in Measuring and Photographing Sounds. United States Weather Bureau. Pp. 18, with plates.
Shinn, Milicent W. Notes on the Development of a Child. Parts III and IV. (University of California Studies.) Pp. 224.
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Smith, Orlando J. A Short View of Great Questions. New York: The Brandur Company, 220 Broadway. Pp. 75.
Smith, Walter. Methods of Knowledge. An Essay in Epistemology. New York: The Macmillan Company. Pp. 340. $1.25.
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Suter, William N. Handbook of Optics. New York: The Macmillan Company. Pp. 209. $1.
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Uline, Edwin B. Higinbothamia. A New Genus, and other New Dioscoreaceæ, New Amaranthaceæ. (Field Columbian Museum, Chicago Botanical Series.) Pp. 12.
Underwood, Lucien M. Molds, Mildews, and Mushrooms. New York: Henry Holt & Co. Pp. 227, with 9 plates. $1.50.