General Lee, finding that Grant was menacing Richmond from a new quarter, hurried his army through the city to confront him in his new position. On the arrival of Grant at Butler's encampment, he immediately sent out another force for the capture of Petersburg, which was an exceedingly important point, covering the railroad connections with the south. The rebels in the intrenchments in front of Butler hastened to the defence of the exposed city, and the vacated works were occupied by Union troops, but they were eventually driven back. The army was drawn up around Petersburg, where the enemy was very strongly intrenched in three lines of works. A vigorous and determined assault was made, but without gaining anything more than a temporary advantage. Burnside got near enough with his black brigades to throw a few shells into Petersburg, but after a bloody conflict he was forced back. The effort was faithfully made, and continued through three days; but the works were invulnerable. At this point Grant fixed his gripe upon the two cities of Richmond and Petersburg. By his hard fighting he had secured favorable positions to commence his siege operations, which were vigorously followed up till the final event. Phil Sheridan had been sent off on another raid to destroy the Virginia Central Railroad, and to unite with Hunter, by whom Sigel had been superseded, after his defeat by Breckinridge. He succeeded fully in the first part of his purpose, but could not find Hunter, who had been sent down through the Shenandoah Valley to strike Lynchburg. Twelve miles from Staunton, he encountered Jones's command, fought, and defeated it, taking fifteen hundred prisoners. Hunter united the expeditions of Crook and Averill with his own, and marched upon Lynchburg; but Lee had reënforced its garrison, and he was compelled to retreat, which he did by the way of West Virginia, thus placing his troops out of the field at a time when they were very much needed. This army had been relied upon by Grant to keep back a rebel approach up the Shenandoah Valley towards Washington, while he had coiled the army of the Potomac around Lee's forces south of the James, so that there was no danger of the main body again menacing the national capital. It makes me even now groan in spirit to recall the failures of Grant's subordinates who were removed from the immediate sphere of his influence; but when I think how charitable the lieutenant general was to them, it is not meet that I should complain. These short comings were galling and vexatious to him, imperilling the mighty plans he had so laboriously built up; but he behaved like a Christian in every disappointment and trial.