Colonel Gregg, commanding the Second brigade of Gregg's division, sent out the Second Pennsylvania cavalry, under Lieu. tenant-Colonel Brinton, from the vicinity of Fayetteville, Va., to establish the picket-line from Freeman's to Kelly's Ford, the former some miles above and the latter some miles below Rappahannock Station. At Liberty (a few miles from Bealton, on the road between that place and Sulphur Springs) they met the enemy's pickets, and the First Maine cavalry being sent to their support, drove them in and followed them up rapidly along the road leading to the, different fords. The party which took the direction of Rappahannock Crossing turned and made a stand when approaching their infantry supports, and for some time the fighting was quite brisk. In this encounter the Second regiment lost six men wounded, among them Major Taggart, who was struck while gallantly leading a charge on the enemy's line.