From Northern Virginia.
Rappahannock Bridge, Oct. 14.
--The bridge at this point was badly burned by the enemy in his retreat, and the ruins are still smoking.
Rapid firing was heard during to-day in the direction of Warrenton.
There was a cavalry skirmish at Catlett's station on Tuesday.
The enemy are still fleeing.
Our cavalry surrounded a body of Yankee dismounted cavalry, acting as sharpshooters, at Jeffersontown, on Tuesday, and, after wounding several of them, took over three hundred prisoners.--More prisoners are coming in.
The country from Culpeper C. H. to this point is completely desolated.
Negroes, stock, and everything, have been carried off. Most of the houses left untenanted were pulled to pieces, and Yankee huts built of their material.
The battle-field about Brandy Station is literally covered with dead horses.
John Minor Botts has again been paroled, to appear in Richmond. 