While all this work was going on, General Gillmore thought to establish a battery near enough to Charleston to subject the city itself to bombardment. A site was chosen on the western side of Morris Island, and the necessary orders were issued. But the ground was soft mud, sixteen feet deep, and it seemed an impossible task. The captain, a West Pointer, to whom it was assigned, was told that he must not fail, but he might ask for whatever he needed, whereupon he made out a formal requisition for "a hundred men eighteen feet high," and other things in proportion. The jest seems to have been appreciated, but the jester was relieved from the duty, which was then assigned to Col. Edward W. Serrell, a volunteer engineer, who accomplished the work. Piles were driven, a platform was laid upon them, and a parapet was built with bags of sand, fifteen thousand being required. All this had to be done after dark, and occupied fourteen nights. Then, with great labor, an eight-inch rifled gun was dragged across the swamp and mounted on this platform. It was nearly five miles from Charleston, but by firing with a high elevation was able to reach the lower part of the city. The soldiers named this gun the "Swamp Angel." Late in August it was ready for work, and, after giving notice for the removal of non-combatants, General Gillmore opened fire. A few shells fell in the streets and produced great consternation, but at the thirty-sixth discharge the Swamp Angel burst, and it never was replaced.

Gillmore had supposed that when Sumter was silenced the fleet would enter the harbor, but Admiral Dahlgren did not think it wise to risk his vessels among the torpedoes, especially as the batteries of the inner harbor had been greatly strengthened. As Fort Wagner and Battery Gregg were nearer the city by a mile than the Swamp Angel, Gillmore repaired them, turned their guns upon Charleston, and kept up a destructive bombardment for weeks.

As a protection to the city, under the plea that its bombardment was a violation of the rules of war, the Confederate authorities selected from their prisoners fifty officers and placed them in the district reached by the shells. Capt. Willard Glazier, who was there, writes: "When the distant rumbling of the Swamp Angel was heard, and the cry 'Here it comes!' resounded through our prison house, there was a general stir. Sleepers sprang to their feet, the gloomy forgot their sorrows, conversation was hushed, and all started to see where the messenger would fall. At night we traced along the sky a slight stream of fire, similar to the tail of a comet, and followed its course until 'whiz! whiz!' came the little pieces from our mighty two-hundred pounder, scattering themselves all around." By placing an equal number of Confederate officers under fire, the Government compelled the removal of its own.

ST. MICHAEL'S CHURCH, CHARLESTON, S. C.

CHAPTER XXVI.

THE CHATTANOOGA CAMPAIGN AND BATTLE OF CHICKAMAUGA.

ROSECRANS AND BRAGG—FIGHT AT DOVER—AT FRANKLIN—AT MILTON—MORGAN'S RAID IN OHIO—MANOEUVRING FOR CHATTANOOGA—BATTLE AT CHICKAMAUGA—NUMBER OF MEN ENGAGED ON EACH SIDE—OPERATIONS OF THE FIRST DAY—RETREAT OF FEDERAL FORCES AT CHATTANOOGA—NUMBER OF OFFICERS AND MEN KILLED AT CHICKAMAUGA—GENERAL ROSECRANS'S OPINION OF THE GENERAL CONDUCT OF THE BATTLE—INSTANCES OF PERSONAL COURAGE AND GALLANTRY—GENERAL BRAGG'S CRITICISMS OF GENERAL POLK.

While Grant's army was pounding at the gates of Vicksburg, those of Rosecrans and Bragg were watching each other at Murfreesboro', both commanders being unwilling to make any grand movement. General Grant and the Secretary of War wanted Rosecrans to advance upon Bragg, lest Bragg should reinforce Johnston, who was a constant menace in the rear of the army besieging Vicksburg. The only thing Grant feared was, that he might be attacked heavily by Johnston before he could capture the place. But Rosecrans refused to move, on the ground that it was against the principles of military science to fight two decisive battles at once, and that the surest method of holding back Bragg from reinforcing Johnston was by constantly standing ready to attack him, but not attacking. As it happened that Bragg was very much like Rosecrans, and was afraid to stir lest Rosecrans should go to Grant's assistance, the policy of quiet watchfulness proved successful—so far at least as immediate results were concerned. Bragg did not reinforce Johnston, Johnston did not attack Grant; and besiegers and besieged were left, like two brawny champions of two great armies, to fight it out, dig it out, and starve it out, till on the 4th of July the city fell. Whether it afterward fared as well with Rosecrans as it might if he had attacked Bragg when Grant and Stanton wanted him to, is another question.