McClellan was now growing desperate, his lines making no headway either on the left or centre. His forces were held at bay on our right across the Antietam, having failed to force a crossing at the bridges. Jackson and Hill, on the left, were being sorely pressed by the corps of Mansfield and Hooker, but still doggedly held their ground. Jackson had left the division of A.P. Hill at Harper’s Ferry to settle the negotiations of surrender, and had but a comparative weak force to meet this overwhelming number of two army corps. Again and again the Confederate ranks were broken, but as often reformed. Stuart stood on the extreme left, with his body of cavalry, but the condition of the field was such as to prevent him from doing little more service than holding the flanks. General Toombs, with his Georgia Brigade, and some detached troops, with two batteries, held the lower fords all day against the whole of Burnside’s corps, notwithstanding the imperative orders of his chief “to cross and strike the Confederates in the rear.” Assaults by whole divisions were repeatedly made against the small force west of the stream, but were easily repulsed by Toombs and his Georgians. In all probability these unsuccessful attacks would have continued during the day, had not the Federals found a crossing, unknown to the Confederate Generals, between the bridges. When the crossing was found the whole slope on the western side of the stream was soon a perfect sheet of blue. So sure were they of victory that they called upon the Confederates to “throw down their arms and surrender.” This was only answered by a volley and a charge with the bayonet point. But there was a factor in the day’s battle not yet taken account of, and which was soon to come upon the field like a whirlwind and change the course of events. A.P. Hill, who had been left at Harper’s Ferry, was speeding towards the bloody field with all the speed his tired