...ot know until he received a dispatch from General Lee on the night of July 1st where he was, for the Union army had been between his march and his own army. Leaving Carlisle, he marched at once for Gettysburg , prevented a movement of the enemy's cavalry on Lee's rear by way of Hunterstown, and took his position on the York and Heidelburg roads on the left of his army late on the evening of July 2d. C...