William Dexter Wilson, an American clergyman, born in Stoddard, N. II., Feb. 28, 1816. He studied in the theological department of Harvard university, and in 1842 was ordained to the ministry in the Protestant Episcopal church. He soon afterward published a small book on "The Constitution of the Christian Church" (enlarged and republished under the title of "A Manual of Church Principles," Baltimore, 1846). In 1847 he edited Bishop Mant's Horoe Liturgioe under the title "An Explanation of the Rubrics of the Book of Common Prayer" (revised ed., New York, 1864), and in 1848 published a " History of the Reformation in England." In 1848-'9 he wrote a series of essays under the title of "The Church Identified," which were afterward collected in a volume (Utica, N. Y.; enlarged ed., New York, 1850; last ed., 1859). In 1850 he was elected professor of history and moral and intellectual philosophy in Geneva college, N. Y.; and in 1868 he became professor of moral and mental philosophy in Cornell university. He has also published an "Elementary Treatise on Logic " (12mo, New York, 1856); " Psychology, Comparative and Human" (1871); "Text Book of Logic" (1872); and " Introduction to the Study of the History of Philosophy " (1872). Besides many contributions to reviews, he has furnished a paper on " Local Climatology " to the report of the regents of the state of New York for 1867, and one on "The Nature of Mathematics and the Method of Treating them " to the " Proceedings of the University Convocation " for 1867.