THE GLOOMY WINTER OF 1861-2--EXULTATION OVER DONELSON--THE ADVANCE UP THE TENNESSEE--RESPONSIBILITY FOR THE ENCAMPMENT AT PITTSBURGH LANDING--CONTROVERSIES OVER THE BATTLE--VARYING ACCOUNTS--SHERMAN'S PERSONAL HEROISM--NUMBER OF TROOPS ENGAGED ON BOTH SIDES--SERVICES OF THE ARMY OF THE OHIO--LOSSES OF THE TWO ARMIES. The winter of 1861-62 was a time of gloom and depression to the Union. Vast armies were in the field, and the wealth of the Government was being poured out most lavishly for their support. Yet they remained chiefly inert, while the active and energetic Southern leaders strengthened the position of the Rebel hosts and promoted the claims of the Rebel cause upon the sympathetic interest of the world. A few small bodies of Union troops encountered the enemy here and there, with results not cheering to the Nation. And there was throughout the North such a feeling of discouragement and gloom as only those who personally experienced it can fully realize. The eyes of the Government and of the Nation were chiefly fixed upon McClellan, the "Young Napoleon," from whom great things were expected. But they were to be gladdened not by the glory of his achievements, but by a sunburst of victory from another quarter, from that very central western region which, according to Sherman's bitter complaints, had hitherto been so much neglected. The news of the triumphs of Grant and Foote at Forts Donelson and Henry, in February, 1862, literally thrilled the heart of the Nation. For the first time Northern valor was grandly vindicated, and for the first time since Bull Run, a cheerful confidence in the victory of the Union cause prevailed. "Unconditional Surrender" Grant became the hero of the hour, and his terse message to Buckner, "I propose to move immediately upon your works," was exultingly re-echoed from Maine to California. Even the stern War Secretary, Stanton, who had succeeded Cameron, was moved to enthusiastic expressions of joy. This campaign on the Tennessee, for the conception and direction of which Sherman should doubtless be largely credited, was, however, merely the beginning of incomparably greater operations, in which Sherman himself played a most important part. After the fall of Donelson, Grant incurred the displeasure of Halleck and was removed from the command of the Army of the Tennessee, and General Charles F. Smith, who had distinguished himself greatly at Donelson, was appointed to take his place. Smith accordingly directed the forward movement of the victorious army, southward, up the Tennessee River, but presently fell sick, at Savannah, Tennessee, and a few weeks later died. Thus Grant was restored to his command, and thenceforth was responsible for the conduct of the campaign.