Cochin-China, a name for Annam (q.v.), is used specially for French Cochin-China, a part of French Indo-Chine, occupying the south extremity of the Indo-China peninsula, and bounded N. by Cambodia and Annam; area, 23,000 sq. m.; population, 3,000,000, chiefly Annamites, but comprising also Cambodians, Chinese, etc. Through nearly its whole extent Cochin-China is low and almost flat, but to the north and east rises into hills. It is watered in the west by two branches of the Mekong, the Han-giang and the Tien-giang. In the east the Dong-nai River flows from north-east to southwest, receiving the Saigon River from the northwest. These and other rivers are all connected with one another by the innumerable arroyos and canals which intersect Cochin-China in all directions. The temperature rises in the dry season (October to April) to 95° F. by day and 62° by night, and in the wet season varies between 68° and 86°. The soil, mostly alluvial, is exceedingly fertile, producing the best rice in the world. Sugar-cane, tobacco, cotton, arachis, mulberry, indigo, maize, tea, betel, hemp, are raised on a small scale; and coffee, cacao, and vanilla have also been introduced. A railway of 44 miles and a steam-tramway run from Saigon, the capital; Cape St Jacques is joined by telegraph to Singapore, Tonkin, and Hong-kong.