by the English commonly called Bul- len, a city of France, in the department of the Straits of Calais, and capital of the Bolonnois, seated near the sea. It is divided into two towns, the Upper and Lower; the first is strongly fortified, the other is enclosed by walls only. The port is at the mouth of the river Lianne, but the water is so shallow that no ships of burden can enter it. It is defended on the side of the river by a mole, which shelters it from the winds, and at the same time prevents the river from filling it with silt. E. Long. 1. 40. N. Lat. 50. 42.