But the end was not yet. The rebel leaders, who had embarked their all in this cause, and had pictured to themselves a magnificent slaveholding empire, stretching away from the Potomac to the Sierra Madre, in Mexico, and swallowing up all tropical America in one mighty nation, devoted to the interests of cotton and slavery alone, over which they should reign, were not yet satisfied to relinquish their cause as desperate, and abandon their glorious dreams. With a wonderful energy that must command our admiration, though it be only of the kind that is accorded to Satan as pictured in "Paradise Lost," they passed the conscription law, abandoned the posts they still held on the frontier, and concentrated their forces on a shorter line of defence. The eastern part of this line extended from Richmond, through Lynchburg, to East Tennessee. In the west, it was represented by the Memphis and Charleston Railroad, extending from Memphis, through Corinth, Huntsville, Chattanooga, and Atlanta, to Charleston. Here they poured forward their new levies, and began to prepare for another desperate contest. The unaccountable inertness of the Eastern army of the Union, under McClellan, gave them time to strengthen their defences, and reinforce their army, which had dwindled to a very low ebb during the winter. But while the commander of the East was planning strategy that, by the slowness of its development, if by nothing _worse_, was destined to dim the lustre of the Union triumphs, and lose the results of a year of war, the West was in motion. Down the Mississippi swept our invincible fleet, with an army on shore to second its operations. Up the Tennessee steamed Grant's victorious army, and Buell, with forty thousand men, was marching across the State of Tennessee, to reach the same point. My own division, under the lamented General O. M. Mitchel, was also marching across the State, but in a different direction, having Chattanooga as its ultimate aim, while Morgan, with another strong force, many of whom were refugees from East Tennessee, lay before Cumberland Gap, ready to strike through that fastness to Knoxville, and thus reach the very heart of rebellion.