The enemy's fleet — Movements of McClellan's army.
The daring exploit of a few members of the Prince George cavalry, on James river, opposite McClellan's camp, last Saturday morning, has led to greater watchfulness on the part of the enemy, who seem to fear for the safety of their fleet of transports. All the vessels have been drawn up as near as possible to the Northern shore of the stream, where they are protected by gunboats. The belief that a considerable portion of McClellan's army is being withdrawn for the purpose of reinforcing Pope, gains strength daily. Information has reached us within the past week that large bodies of Federal troops were quietly crossing the Chickahominy and marching down the Peninsula towards Fortress Monroe; but before giving currency to this report, we preferred to await further developments. It is now asserted that observations from the opposite side of James river show that many of the enemy's tents have disappeared, and it is also noticed that the vessels in front of the camp frequently diminish in number during the night. --That some important movement is in progress, seems to be well authenticated; and the utmost caution is observed, with the view of preventing the Confederate authorities from learning its object. It is presumed that McClellan, unwilling to hazard another advance towards Richmond from below, will hold his present fortified position with a sufficient number of men, protected by gunboats, while the business of conquering the ‘"Rebel Capital" ’ will be entrusted to Pope, the idol of the present hour in Yankeedom, who is to have all the men and means necessary to make ‘"short work"’ of the enterprise.
