WILLSON, Marcius, author, born in West Stock-bridge, Massachusetts, 8 December, 1813. He was graduated at Union college in 1836 and became a teacher, but studied law, and was admitted to the bar in 1839. A bronchial affection compelled him to relinquish both professions till 1849, when he became principal of Canandaigua academy, and remained there four years. Among his numerous educational works are " Civil Polity and Political Economy" (New York, 1838); "Perspective, Architectural, and Landscape Drawing" (1839) ; series of histories (1845-'54) ; two series of reading-books (New York, 1860-'72 ; Philadelphia, 1881-'2); spellers (1864-'70); "New System of Plane Trigonometry" (1874);" Mosaics of Bible History" (2 vols., 1883); "Mosaics of Grecian History" (1883); and "The Wonderful Story of Old," an illustrated work on the Bible (2 vols., Philadelphia, 1888).