Of Siamese, Chinese, Shans, and Malays), occupies the central portion of the Indo-Chinese peninsula, wedged in between Annam and Cambodia (E.) and Burma (W.), and extending down into the Malay Peninsula; the wide Gulf of Siam forms the southern boundary; the rich alluvial valleys of the Menam and the Mekhong produce great quantities of rice (chief export), teak-wood, hemp, tobacco, cotton, etc., but of the land surface only about one-twentieth is cultivated, a large portion of the rest lying under forest and jungle; the Siamese are indolent, ignorant, ceremonious, and the trade is mainly in the hands of the Chinese; the mining of gold, tin, and especially rubies and sapphires, is also carried on. Buddhism is the national religion, and elementary education is well advanced; government is vested in a king (at present an enlightened and English-educated monarch) and council of ministers; since Sir J. Bowring's treaty in 1856, opening up the country to European trade and influences, progress has been considerable in roads and railway, electric, telephonic, and postal communication. Bangkok ( q. v .) is the capital. In 1893 a large tract of territory NE. of the Mekhong was ceded to France.