From Fredericksburg.
The reports from Fredericksburg yesterday, if correct are important. It is stated that Burnside has been superseded in the command of the Yankee forces and that ‘"fighting Joe Hooker, "’ as he is fact rly termed by Yankee correspondents, has taken his place. Burnside will have no cause to regret this change if the radicals insist upon an early advanceAnother report states that pretty severe skirmishing occurred in the neighborhood of Port Royal yesterday morning. but with what result and could not be learned. The general aspect of affairs is represented to indicate a battle. The column of the enemy have been moved to the front, and such activity is observable along their lines our own forces we need not speak, but confidence is felt both in the army and its leaders.
