The morning Stuart with his cavalry left Chambersburg, we rode forth for the battle field of the Antietam. We noticed the disappearance of some of the camps of the infantry brigades. We knew of the patrolling of the cavalry along the road we were pursuing, and found the picket guards farther out, and passes and countersigns necessary where before we went unchallenged. We were several hours in getting to the battle field, and stopped to get some refreshments at a large brick farmhouse, where the battle on the left began. The hospital flag was still flying over the building, though no patients had been there for a day or two. Twenty-seven died in that one farmhouse from wounds received in that bloody fight. On the night of the battle, cows, sheep, poultry, and fences disappeared before our cold and hungry troops. But since then, though the house was in the neighborhood of several camps, the old lady and her daughters, who alone were at home, had been undisturbed, except by the small pilferings of stragglers. The great battle has been so well described by the correspondents of the newspaper press, and by those who were over the field before we were, that I shall only mention a few incidents to which our attention was called. The principal contest was on the right, west of the Antietam river. Here Hooker with his army corps began the battle, and fought so long and splendidly. Both armies crowded their forces to this part of the field. Sumner, whose troops had been with their belts on since three in the morning, brought up his large corps, drawn up in three columns, forty paces apart, to reenforce Hooker's hard-pressed soldiers, who were retreating before the fresh and overwhelming reenforcements of the enemy. In less than an hour, the whole of Sumner's corps was swept back, broken and entirely routed, and never appeared in the field again; the column in the rear not being in position to fire a gun, but losing as many men as those in front. The manner in which General Sumner brought his troops into action has been severely criticized, even by officers of his own corps; whether justly or not, it is difficult to decide. No commander was more confided in by his soldiers than Sumner. 'He has risen from the ranks, and been through all the grades of the service,' 'He knows how to treat his men,' were expressions constantly heard. General Hooker's reputation as a fighting general was admitted everywhere; his _coup d'oeil_ of the battle field was represented as most excellent.