Daniel Ammen, Confederate Military History, a library of Confederate States Military History: Volume 7.2, The Atlantic Coast
Clement Anselm Evans, Ed.

[135] Fort Sumter from beyond Wagner, having a mean range of four thousand five hundred yards, every day brought ruin, until Sumter had not a single gun mounted. General Ripley's report of August 21st says: ‘Enemy opened heavily from land batteries on Morris Island on eastern face of Sumter. Four hundred and sixty-five projectiles struck outside, 259 inside, and 219 passed over. The eastern face was heavily battered and 2 barbette guns dismounted.’ During the night artillery implements, subsistence, and other stores and 9,700 pounds of powder were removed. This removal of stores, etc., was continued steadily, as opportunities favored. The next day all of the barbette guns were disabled except one XI-inch and one X-inch on eastern face. The arches of the northwest face were demolished, of which five and the terreplein fell in. On the 23d the ironclads came up and engaged Sumter at short distance. Twenty-nine projectiles struck outside, 15 inside, and 17 missed. Considerable damage was done to the parapet and wall. From the land batteries came 282 projectiles outside, 310 inside, and 141 missed. The X-inch gun en barbette was disabled, and three 42-pounder rifles in the northeast salient of second tier. The Confederates were engaged in throwing the dismounted guns off the parapets and transporting them and munitions as they best could. Although the bombardment was almost daily, it is passed over here until the 30th. Four guns were then firing from the land batteries, and disabled three X-inch Columbiads that had been repaired. Three of the casemate arches on the northeast face were demolished, and two breaches made in the scarp wall, exposing the sand with which the arches were filled. September 1st, all of the guns en barbette were disabled, and the entire terreplein of the northeast face, with the exception of two arches, fell in. September 2d, ‘the Ironsides and monitors came up and ’