The scene of this conflict was Vineyard’s farm. It was a clearing, surrounded on all sides by the thickest woods. The troops of each army, in the alternations of advance and retreat, found friendly cover in the woods, or fatal exposure in the clearing. It was this configuration of the battle-field which caused the fluctuations of the issue. Time after time a column of blue charged across the clearing, and was driven back to rally in the sheltering forest. Time after time did the line of gray advance from the shade into the sunlight only to retire, leaving half their number stretched lifeless on the field. It was a battle within a battle. The rest of the army could hear the terrific roar, but were ignorant of the whereabouts of the conflict. The farm and the surrounding woods was a distinct battle-field. The struggle upon it, though an important element in a great battle on a vast field, was, during the later hours of its continuance, a separate battle, mapped upon the open field and forest in glaring insulation by the bodies of the slain. Meanwhile, in hurrying reinforcements to this portion of the line of battle, a chasm was opened between the center and left. Troops were thrown forward to occupy it, but the enemy had discovered the weakness, and hurled forward heavy columns against the devoted Union lines. The struggle here was the counterpart of the one at the Vineyard farm. At the latter place the line was, at one time in the afternoon, driven back to the Lafayette road; but, towards evening, the divisions which had repulsed the attack on General Thomas’s extreme left were shifted down to the scene of these other conflicts, and the enemy was finally driven back with heavy loss.