On July 9th, Sherman appeared before Jackson, having marched through fifty miles of almost desert country. Three days later the town was invested partially, and then Johnston, seeing that it was impossible for him to hold his ground against Sherman's determined army, evacuated the place and retreated to Meridian, a hundred miles away, burning the bridges behind him. Sherman left a small garrison at Jackson, and then returned to the line of the Big Black River. And thus was ended, one hundred and nine days from its commencement, this great campaign. The Union army had captured 37,000 prisoners, including fifteen Generals. They had driven before them and partially dispersed another large army under the ablest of the Rebel leaders. They had captured Vicksburg, the Gibraltar of the South. They had freed the Mississippi River from Rebel control. And they had split the Rebel Confederacy in twain. Of Sherman's part in the campaign General Grant remarks: "The siege of Vicksburg and last capture of Jackson and dispersion of Johnston's army entitle General Sherman to more credit than usually falls to the lot of one man to earn. His demonstration at Haines's Bluff, in April, to hold the enemy about Vicksburg, while the army was securing a foothold east of the Mississippi; his rapid marches to join the army afterwards; his management at Jackson, Mississippi, in the first attack; his almost unequalled march from Jackson to Bridgeport, and passage of Black River; his securing Walnut Hills on the 18th of May, may attest his great merit as a soldier." CHAPTER XVIII. SOME WAR CORRESPONDENCE. SHERMAN'S CHARACTERISTIC LETTERS--CONGRATULATIONS TO PORTER AT VICKSBURG--VIEWS ON THE REORGANIZATION OF THE ARMY--THE CONDUCT OF THE WAR AND THE SPIRIT OF THE SOUTH--MANNERS AND MORALS OF THE SOLDIERS--NO WANTON SPOLIATION OF THE ENEMY'S PROPERTY--THE HEROIC CARTRIDGE BOY OF VICKSBURG. Early in this volume mention was made of Sherman's ability as a letter-writer. Perhaps in no other way can so good an idea be gained of his mental characteristics as by perusing a few of his epistles, penned amid the scenes of war in which he was so important an actor. As soon as Vicksburg had fallen, for example, and before any attempt was made toward the next move in the bloody game, he wrote thus to Admiral Porter, with whom he had formed a strong and lasting friendship: