German physician; born at Lobsens, Posen, 1738; died at Hamburg April 14, 1820; studied at the University of Giessen (M.D. 1779). After practising for some time in Altona, he removed to Hamburg, where from 1786 to 1788 he acted as physician at the poorhouse. He was the author of the following works: "Abhandlungüber das Spanische Fliegenpflaster," Altona, 1785; "Vertheidigung der Frühen Beerdigung der Juden," Hamburg, 1788; "Bemerkungen über die Blattern," ib. 1795; "Ideen über Lebenskraft, nebst Einigen Krankengeschichten und Bemerkungen," Altona, 1806; "Praktische Bemerkungen nebst Krankheitsgeschichten," Hamburg, 1811; "Ueber das Wesen des Fiebers, nebst einem Beitrag zum Thierischen Magnetismus," ib. 1815, 2d ed. 1818.