Gottfried Reinhold, a German naturalist, born in Bremen, Feb. 4, 1776, died there, Feb. 16, 1837. He studied medicine at Gottingen, and after practising at Bremen became in 1797 professor of mathematics in the lyceum of that city. His works include Phy-siologische Fragmente (2 vols., Hanover, 1797-'9); Biologie oder Philosophic der lebenden Natur (6 vols., Gottingen, 1802-'22); Erschei-nungen und Gesetze des organischen Lebens (2 vols., Bremen, 1831-2); and with his brother Vermischte Schriften anatomischen und phy-siologischen Inhalts (4 vols., Gottingen and Bremen, 1816-'21). H. Ludolf Christian, a German botanist, brother of the preceding, born in Bremen, Sept. 10, 1779, died in Bonn, May 6, 1864. He became professor of medicine at Berlin in 1807, of botany and natural history at Rostock in 1812, professor of botany and director of the botanic garden at Breslau in 1816, and afterward at Bonn. He is chiefly known by his Physiologie der Gewachse (2 vols., Bonn, 1835-'9).