Wiihelm Traugott Krug, a German philosopher, born at Radis, June 22, 1770, died in Leipsic, Jan. 13, 1842. He was educated at the university of Wittenberg, where in 1794 he became adjunct of the philosophical faculty. His Ueber die Perfectibilitat der geoffenbarten Religion (Jena and Leipsic, 1795) was the cause of his not receiving a professorship, and was followed by other works, chiefly in development of the Kantian philosophy, of which he was one of the most efficient promulgators. He was appointed professor of philosophy at Frankfort-on-the-Odcr in 1801, and published in 1803 his principal work, Fundamentalphi-losophie, in which he proposed a system under the name of "transcendental synthetism," which, as he maintained, reconciled idealism and realism. In 1804 he succeeded Kant as professor of logic and metaphysics at Konigs-berg, and in 1807 also Kraus as professor of practical philosophy. In 1809 he accepted a professorship of philosophy at Leipsic, which he held till 1834, when he received a pension from the state.

He was one of the presidents of the democratic society founded at Konigs-berg after the peace of Tilsit under the name of the Tugendbund; joined in 1813 the Saxon corps of chasseurs a cheval; and was afterward a leading champion of German liberalism against Ancillon, Kotzebue, and others. Among his more important works are Allge-meines Handworterbuch der philosophischen Wissenschaften (4 vols., Leipsic, 1827-18), and an autobiography entitled Meine Lebensreise in sechs Stationen, von Urceus (Leipsic, 1826), to which he added a supplementary volume entitled Leipziger Freuden und Leiden im Jahre 1830 (Leipsic, 1831).