I. A name applied by some geographers to the whole range of mountains in eastern Siberia, from the Altai chain to Beh-ring strait. Others limit its application to a branch of this mountain system, extending from the Yablonnoy range in a northwesterly direction about 900 miles. Mt. Kapitan, the highest summit of this branch, has an elevation of 4,263 feet above the sea level.

II. A river, winch rises in the Aldan mountains, and after a X. and W. course of about 900 miles falls into the Lena, 100 miles N. of Yakutsk.