...nd Hagerstown road, at a point one mile beyond Beaver Creek, to Bakersville, near the Potomac. Our cavalry advance this morning drove the enemy's cavalry, on the Boonsboro pike, to within a mile of Funkstown , when the enemy deployed a large force and opened a fire from heavy guns (20-pounders). I shall advance cautiously on the same line to-morrow until I can develop more fully the enemy's position a...