Frank Drew, State Normal School, Worcester, Mass.:—The range of experiments and the simplicity of their presentation are admirable. They will deepen insight.

Jones's Logic, Inductive and Deductive.

By Adam L. Jones, Professor in Columbia University. ix+304 pp. 12mo. $1.00.

The aim of this text-book is to present, in as concrete a form as is possible, the rudiments of Logic, considered as method.

Jastrow's Psychology of Stereoscopic Vision.

By Joseph Jastrow, Professor in the University of Wisconsin. [In press.]

Bode's Logic.

By W. H. Bode, Professor in the University of Illinois. $1.00.

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NEW YORK