And French Congo (5,000), a French Colony in W. Africa fronting the Atlantic, between the Cameroon country and the Congo State, and stretching inland as far as the head-waters of the Congo River; in the NW. is the great Gaboon estuary, 40 m. long and 10 broad at its mouth, with Libreville on its N. bank; along the coast the climate is hot and unhealthy, but it improves inland; the natives belong to the Bantu stock; the French settled in it first in 1842, but only since the explorations of De Brazza in 1876-86 have they begun to extend and colonise it.