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The Power of Movement in Plants. By Charles Darwin, LL. D., F. R. S., assisted by Francis Darwin (New York; D. Appleton & Co.; Portland: Hoyt, Fogg & Donham.) This work, which will be especially interesting to students of botany, is a learned and complete treatise upon the movements of plants, the rotatory motion by which a growing stem bends successively to each point of the compass; the sleep during which their blades take a vertical position that the plant may not be chilled; the following or avoidance of light, etc. The minute research, the ingenious experiments, and scientific conclusions need little commendation since the name of Darwin insures their ready welcome among savants and students.