...ursuit useless, particularly as the brasses of the Potomska's shaft-bearing had broken, in a measure disabling that vessel. Com. Godon learned from some contrabands, who came off from shore, that Darien , like Brunswick, was deserted, a company of horsemen only remaining in the town, with the intention of firing the place should the steamers approach. Owing to. the crippled condition of the Potom...