Washington, June 10. A special to the Post says the fight between Ilooker's cavalry and Stuart's forcé yesterday was a brilliant cxploit. Our men crossod the Rappahaunock and made the attack, driving tiio rebels from their entreDchments, and taking a great body of prisoners - number unknown. From an officer who participated in the fight, it is aseertained that yesterday morning two brigades of Gen. Pleasouton's cavalry, under command of General Buford, made an important rcoonuoisance towards Culpcpper, aud had one of the most obstinate cavalry fiffhts that has oceurred during the war. The forcé was composed of Gen. Buford's brigade and another eavalry brigade under command of Col. B. F. Davis, supportcd by two batteries of artülery and two regiments of infantry. Monduy night the cavalry bivouacked near Beverly Ford, on the Eappahannock, and drove the pickets back to the rifle-pite, and after a desperate combat cleared the woods of the euemy, falling back upon their artillery and maintaining their position until 12 o'clock, when our artillery came up, wheu they wero driven six miles in the direetion of Oulpepper Court House, and our forces re turned and re-crossed the Ford in good order. Nearly all the Sghting was done by the cavalry, and it was of the bloodiest charactcr, mostly hand-to-hand. Our own loss was considerable, and the slaughter of the rebels fearful. The appropriate number of the casualties on both sides is not yet reported. Col. B. F. Davis, Eighth New York cavalry, was killed; Lieut. Cutler, killed ; Lieut. Reeves, mortally woanded ; Lieutenant Bayne, severely wounded ; Captain Canfield, of the regular cavalry, killed. By this sudden and brilliant dash of cavalry iuto the enemy's lines, their plans have been frustrated, and the intendod raid of Stuart's forces prevented. Washington, June 8. The intelligence from Frederieksburg by the arrivals last night, is that all is quiet. No more of onr troops have crossed over. It would bo improper to teil what our troops are doing, but the enemy was at work on entronclnnents at the end of the woods skirtiug the plain. There was picket firing in that quarter, but nothing more ssrious had taken place.