...ck, a torpedo on a large scale, with an amount of powder on board, supposed to be sufficient to explode the powder magazines of the fort, was prepared with great care, and placed under the command of Comm ander A. C. Rhind, who had associated with him on this perilous service Lieutenant S. W. Preston, Second Assistant Engineer A. T. E. Mullan, of the United States steamer Agawam, and Acting Master's Ma...