...front of the forks of the road, and was exchanging shots with a battery of the enemy well up toward the gap. It was about half-past 7 o'clock when Crook's column filed off on the old Sharpsburg road, Scammon having perhaps half an hour's start. We had fully two miles to go before we should reach the place where our attack was made, and, as it was a pretty steep road, the men marched slowly with frequen...