... of 3,000 men for the purpose of capturing a supposed battery of heavy guns, which, it was believed, the Confederates had built at the head of the causeway leading to Port Royal ferry. Landing from Chisolm 's island, some distance east of the small earthwork, Col. James Jones, Fourteenth volunteers, had promptly withdrawn the guns in the earthwork, except a 12-pounder, which was overturned in a ditch. ...