...uns of the battery, materially contributed to its protection, and late in the fall of 1864, sub-terra shells were disposed in rear of the fort. Just prior to the siege of Savannah the armament of Fort McAllister consisted of the following guns: one 10-inch mortar, one 8-inch and two 10-inch columbiads, one 42-pounder gun, one 32-pounder rifle and one 32-pounder smooth-bore gun, one 24-pounder howitzer, two 1...