Behind the deadly stone wall of Marye's Heights after Sedgwick's men had swept across it in the gallant charge of May 3, 1863. This was one of the strongest natural positions stormed during the war. In front of this wall the previous year, nearly 6,000 of Burnside's men had fallen, and it was not carried. Again in the Chancellorsville campaign Sedgwick's Sixth Corps was ordered to assault it. It was defended the second time with the same death-dealing stubbornness but with less than a fourth of the former numbers--9,000 Confederates against 20,000 Federals. At eleven o'clock in the morning the line of battle, under Colonel Hiram Burnham, moved out over the awful field of the year before, supported to right and left by flanking columns. Up to within twenty-five yards of the wall they pressed, when again the flame of musketry fire belched forth, laying low in six minutes 36.5 per cent. of the Fifth Wisconsin and the Sixth Maine. The assailants wavered and rallied, and then with one impulse both columns and line of battle hurled themselves upon the wall in a fierce hand-to-hand combat. A soldier of the Seventh Massachusetts happened to peer through a crack in a board fence and saw that it covered the flank of the double line of Confederates in the road. Up and over the fence poured the Federals and drove the Confederates from the heights. [Illustration: THE WORK OF ONE SHELL COPYRIGHT, 1911, REVIEW OF REVIEWS CO.] Part of the Havoc Wrought on Marye's Heights by the Assault of Sedgwick on May 3, 1863. No sooner had they seized the stone wall than the victorious Federals swarmed up and over the ridge above, driving the Confederates from the rifle-pits, capturing the guns of the famous Washington Artillery which had so long guarded the Heights, and inflicting slaughter upon the assaulting columns. If Sedgwick had had cavalry he could have crushed the divided forces of Early and cleared the way for a rapid advance to attack Lee's rear. In the picture we see Confederate caisson wagons and horses destroyed by a lucky shot from the Second Massachusetts' siege-gun battery planted across the river at Falmouth to support Sedgwick's assault. Surveying the scene stands General Herman Haupt, Chief of the Bureau of Military Railways, the man leaning against the stump. By him is W. W. Wright, Superintendent of the Military Railroad. The photograph was taken on May 3d, after the battle. The Federals held Marye's Heights until driven off by fresh forces which Lee had detached from his main army at Chancellorsville and sent against Sedgwick on the afternoon of the 4th. [Illustration: THE DEMOLISHED HEADQUARTERS]