FORT MOULTRIE.
Fort Moultrie, which first opened its batteries upon Major Anderson and his command, is one of the sentinels that guard the principal entrance of Charleston harbor. It is opposite to and distant from Fort Sumter about one and a half miles. Its armament consists of eleven guns of heavy calibre and several mortars. The outer and inner walls are of brick, capped with stone and filled with earth, making a solid wall fifteen or sixteen feet in thickness.