...position held by General Meade, who had been then only four days in command of the army of the Potomac. On the fourth of July, the day of the surrender of Vicksburgh, Lee retreated, passing through Chambersburgh and Hagerstown to Williamsport, where the proper disposition to attack him was made by General Meade. Deceived concerning the state of the river, supposed to be unfordable, General Meade, hourly ex...