...attacked by a party of guerrillas, at a point two miles east of Bealton Station.--Georgetown, S. C., was destroyed by fire this night. Major-General W. T. Sherman and staff; accompanied by Brigadier-General Wilson , arrived at General Burnside's headquarters, at Knoxville, Tenn., at noon to-day.--A most successful reconnaissance was made to Madison Court-House, Va., by four squadrons of the First New York Drago...