Every patriot in the land was filled with astonishment when he read of the surrender of Harper’s Ferry. This surrender was made by Colonel D. T. Miles, an officer who had received imperative orders to hold this important post, to the last extremity. A natural desire to show all possible gentleness, in judging the act of one no longer living, forbids us to criticise motives, or censure an act which proved a great loss to the country, and which was one that history cannot well defend. The position of Harper’s Ferry, at the junction of the Potomac and Shenandoah rivers, and on the Ohio and Baltimore railroad, gave it great military importance. General Wool had directed Colonel Miles to fortify Maryland Heights, which is the key to Harper’s Ferry, and to hold the post till McClellan’s arrival. The Heights, however, were left unfortified, and Colonel Thomas H. Ford, of the Thirty-second Ohio, was entrusted by Colonel Miles with discretionary power, for the abandonment of that important position. As soon as he was attacked, therefore, which occurred on the 13th of September, Colonel Ford withdrew from the Heights, and retreated to the Ferry. This movement rendered the position at the Ferry untenable. The Heights were immediately occupied by the enemy, who, on the 14th, commenced cannonading the works at Harper’s Ferry. General McClellan was, at this time, rapidly approaching to the relief of the garrison, which he had been assured by a messenger from Colonel Miles, could hold out two days longer. But though the victory at South Mountain had assured the coming of reinforcements, on the morning of the 15th, after withstanding an attack which lasted from daybreak till seven o’clock, he caused the white flag to be hoisted in token of the surrender of his position. But the firing did not immediately cease, and within the next half hour Colonel Miles was shot, and mortally wounded. The reasons, whatever they may have been, for thus needlessly yielding to his country’s foes the possession of so important a post, went with him to the grave. Eleven thousand five hundred and eighty-three men were thus captured by the enemy. At eight o’clock on the 15th of September, the rebels took possession of Harper’s Ferry. A military commission, held long afterwards at Washington, to inquire into the conduct of the war, exempted all Colonel Miles’ subordinate officers from blame, excepting Colonel T. H. Ford, and Major Baird of the One hundred and Twenty-sixth New York regiment, who were severely censured. The gallantry of General Julius White, in such defence of Harper’s Ferry as was made, deserves to be recorded and honorably remembered. BATTLE OF ANTIETAM. SEPTEMBER 17, 1862.