CHURCH, Albert E., author, born in Salisbury, Connecticut, in 1807; died in West Point, New York, 30 March, 1878. He was graduated at the United States military academy in 1828, and was commissioned second lieutenant in the 3d regiment of artillery. He served as assistant professor of mathematics at the military academy from 31 August, 1828, till 28 August, 1831, was in garrison at Fort Wolcott, Rhode Island, 1832, and at Fort Independence, Massachusetts, in 1832-'3. He was appointed assistant professor of mathematics at West Point, 24 November, 1833, and served in this capacity until 1 June, 1837, when he became acting professor of mathematics, and in March, 1838, professor, retaining the chair tilt his death. The degree of LL.D. was conferred upon him by Yale in 1852. His works are "Elements of Differential and Integral Calculus" (1842; new ed., containing the " Elements of the Calculus of Variations," 1851)" " Elements of Analytical Geometry" (1851)" "Elements of Analytical Trigonometry" (1857); and " Elements of Descriptive Geometry (1865).