BRAS D'OR, an irregular landlocked and tideless gulf or lake, 5om. long by 2om. broad, almost separating Cape Breton island (Nova Scotia, Canada) into two parts. A ship canal goes across the isthmus (about Im. wide). The gulf is connected with the Atlantic by the Great and Little Bras d'Or channels, divided by Boulardeire island. The gulf or lake is itself divided into two basins, the inner or Great Bras d'Or lake, from 12 to 6o fathoms deep, the outer or Little Bras d'Or lake, in places nearly 7ooft. deep. The picturesque and well wooded shores attract tourists. Sea fishing (cod, mackerel, etc.) is the chief industry.