During the quiet repose of the grand army of the Tennessee before Corinth, events of vast importance had transpired in the West and South. Island No. 10 had been captured by the indomitable flag-officer Foote; New Orleans had been taken by the tremendous operations of Farragut. In the East, Fort Pulaski had been battered down, Fredericksburg captured; Fort Macon had fallen, following Burnside's success in North Carolina; and Huntsville, Alabama, was occupied by General Mitchell. McClellan had at last commenced a hopeful forward movement with the army of the Potomac. With vast armies in the East and in the West, with strong naval forces ascending and descending the Mississippi towards its obstructed points, the national cause looked exceedingly promising as the summer of 1862 opened. But the promise was not realized. The summer sun glared on many a lost battle in the East, though the conquest was uninterrupted in the West. Halleck made no efficient pursuit of the enemy after they had abandoned Corinth. Beauregard had been successfully hiding his weakness from his prudent checker-board adversary, and, understanding his man, outwitted him completely and handsomely. Grant had fought and won Corinth, whether it was occupied in a week or in two months. He had taught the vaunting rebels a lesson by which Halleck was too willing to profit, as he peacefully pursued his siege operations till the 1st of June. Buell was a prudent man, and he was sent out to catch the retreating and demoralized foe. Pope had been despatched on the same errand; but their united forces accomplished nothing. During this time, Grant remained at Corinth. The grand army was then broken up, and Buell sent in the direction of Chattanooga. From Shiloh the vast army marched up the hill and then marched down again, in humble imitation of the King of France in the nursery rhyme. Nothing was done except what Grant had accomplished. By the continued successes of the flotilla on the Mississippi, Memphis, after a brilliant naval engagement, fell into the hands of the Union force. Grant, as the commander of the Tennessee district, established his headquarters at this city. Pope was ordered to Virginia, to supersede Fremont, where he established his celebrated "headquarters in the saddle."