tive point of each corps.
Within an hour after finding the dispatch, General McClellan's whole army was on the move, and the enemy were overtaken next day, the 14th, at South Mountain, and the battle of that name was fought.
During the night of the 14th General Lee's army fell back toward the Potomac River, General McClellan following the next day. On the 16th they were overtaken again, and the battle of Antietam.
was fought mainly on the 17th. General D. H. Hill says in his article in the May Century, that the battle of South Mountain was fought in order to give General Lee time to move his trains, which were then parked in the neighborhood of Boonsboro‘. It is evident from General Lee's movements from the time he left Frederick City, that he intended to recross the Potomac without hazarding a battle in Maryland, and had it not been for the finding of this lost order, the battle of South Mountain, and probably that of Antietam, would not have been fought.
For confirmation of th