...tter's movements. The plan was a good one, and its results might have been very momentous. Mahone, moving cautiously to the front, holding his troops well in hand, furiously assaulted the left of Birney in flank and rear, carrying the line and capturing whole regiments and batteries. Penetrating further in the gap with one of his brigades, he struck the right of the Sixth Corps, and here rested, a...