Bokha`ra (1,800), a Mohammedan State in Central Asia, N. of Afghanistan, nominally independent; but the Khan is a vassal of the Czar. The surface is arid, and cultivation possible only near the rivers-the Oxus, Zarafshan, and Karshi. In the sands of the Oxus, gold and salt are found. Rice, cotton, and cereals are grown; silk, cotton-thread, jewellery, cutlery, and firearms are manufactured. The people are of Turk and Persian origin. The capital, Bokhara (70), is on the plain of the Zarafshan, a walled, mud-built city, 8 or 9 m. in circumference, with numerous colleges and mosques, the centre of learning and religious life in Central Asia. It has important trade and large slave markets.