Buch, LEOPOLD

VON, 1774-1853. German geologist, who added much to our knowledge of volcanoes by his Theory of Craters of Elevation. The idea of chronomorphosis of genera, first developed by him, gave a great impulse to the study of stratified rocks. Buchan, ALEXANDER, b. ab. 1820. Scottish meteorologist, author of B.'s Law, announced 1865: "Stand with your left hand toward the center of low barometer and your right hand toward the high, and in the northern hemisphere the wind will be on your back;" often confounded with BuyS-BALLOT'S LAW (q.v). Buchanan, CLAUDIUS, D.D., 1766-1815. Prof. Bengal 17991807. Christian Researches in Asia , 1811.