About one o'clock, on the morning of the 22d, (Sunday,) it was discovered that the mob had a field piece on Liberty street, ready to fire on the round house. By General Brinton's orders his men were stationed at the windows ready to fire, and the mob were notified to abandon the gun and not attempt to fire it, or they would be fired on. They paid no attention to the warning, and when one of them was seen with the lanyard in his hand ready to discharge the piece, orders were given the troops to fire, and several of the mob fell, and the rest ran away. Several attempts were made by the mob during the night to creep up and discharge the gun, but the soldiers kept close watch on it and allowed them no opportunity to do so. General Brinton succeeded in communicating with General Latta during the night by sending out one of his men, Sergeant Joseph F. Wilson, who, by disguising himself, succeeded in getting out and back twice, but would not undertake it again. He brought orders from General Latta to hold on as long as possible, that Guthrie had been ordered to report to him, and ought to reach him at five or six o'clock, but if compelled to escape at last, to do so to the eastward, to take Penn avenue if possible, and make for Colonel Guthrie, at Torrens. The scout, Wilson, brought in the last dispatch about two o'clock, A.M., the 22d, and this was the last communication that reached General Brinton while in the round house. The ordeal through which these men passed that night was fearful. Tired, hungry, worn out, surrounded by a mob of infuriated men, yelling like demons, fire on nearly all sides of them, suffocated and blinded by smoke, with no chance to rest, and but little knowledge of what efforts were being made for their relief, with orders not to fire on the mob unless in necessary self defense, the wonder is that they were not totally demoralized; but the evidence of all the officers is that the men behaved like veterans, obeyed all orders cheerfully and with promptness, and during the whole night but one company manifested any spirit of insubordination, and these proposed to lay down their arms and quit, as they were not allowed to use them on the mob, while the latter were taking every opportunity of shooting down the soldiers. This insubordination was quickly brought to an end as soon as the attention of the proper officer was called to it, and when the troops marched out in the morning, no one could tell by their actions which of the men had wavered during the night. About half-past seven, Sunday morning, the 22d instant, the machine shop caught fire in many places, the roof of the round house also was on fire, and it became necessary to evacuate the buildings. The two Napoleon guns could not be removed, and were spiked, and about eight, A.M., the command marched out into the street in good, order, taking their Gatling guns with them. The mob scattered in every direction at sight of the troops coming out, and no