The ground over which Generals Richardson’s and French’s divisions were fighting was very irregular, intersected by numerous ravines, hills covered with growing corn, inclosed by stone walls, behind which the enemy could advance unobserved upon any exposed point of our lines, Taking advantage of this, the enemy attempted to gain the right of Richardson’s position in a corn-field near Roulette’s house, where the division had become separated from that of General French’s. A change of front by the Fifty-second New York and Second Delaware volunteers, of Colonel Brooks’s brigade, under Colonel Frank, and the attack made by the Fifty-third Pennsylvania volunteers, sent further to the right by Colonel Brooks to close this gap in the line, and the movement of the One Hundred and Thirty-second Pennsylvania and Seventh Virginia volunteers of General French’s division before referred to, drove the enemy from the corn-field and restored the line. The brigade of General Caldwell, with determined gallantry, pushed the enemy back opposite the left and centre of this division, but sheltered in the sunken road, they still held our forces on the right of Caldwell in check. Colonel Barlow, commanding the Sixty-first and Sixty-fourth New York regiments of Caldwell’s brigade, seeing a favorable opportunity, advanced the regiments on the left, taking the line in the sunken road in flank, and compelled them to surrender, capturing over three hundred prisoners and three stands of colors. The whole of the brigade, with the Fifty-seventh and Sixty-sixth New York regiments of Colonel Brooks’s brigade, who had moved these regiments into the first line, now advanced with gallantry, driving the enemy before them in confusion into the corn-field beyond the sunken road. The left of the division was now well advanced, when the enemy, concealed by an intervening ridge, endeavored to turn its left and rear. [Illustration: UNION HEROES GRAHAM. WARD. MEAGHER. RICKETTS. KEITH.] Colonel Cross, Fifth New Hampshire, by a change of front to the left and rear, brought his regiment facing the advancing line. Here a spirited contest arose to gain a commanding height, the two opposing forces moving parallel to each other, giving and receiving fire. The Fifth gaining the advantage, faced to the right and delivered its volley. The enemy staggered, but rallied and advanced desperately at a charge. Being reinforced by the Eighty-first Pennsylvania, these regiments met the advance by a counter charge. The enemy fled, leaving many killed, wounded, and prisoners, and the colors of the Fourth North Carolina, in the victors’ hands. Another column of the enemy, advancing under shelter of a stone wall and corn-field, pressed down on the right of the division; but Colonel Barlow again advanced the Sixty-first and Sixty-fourth New York against these troops, and with the attack of Kimball’s brigade on the right, drove them from this position.