...rgia, was sunk in Charleston harbor by the guns of Fort Moultrie. The Twenty-third Georgia had been on duty at the rebel Battery Wagner, and, being relieved, went on board the steamer to go to Fort Johnson . The tide being low, they could not go the usual course, but steamed off in the direction of Sullivan's Island. The watch at Moultrie, supposing it to be a Yankee monitor, awakened the gunners, w...