...ted to enter Rogersville, attack the enemy in the rear, and cut off his retreat across the river; but in this region, inhabited by rebels, it was impossible to conceal our movements and intentions. General Negley entered Rogersville at the very hour that Colonel Lytle reached Elkl River, but the enemy obtained a few hours' notice of the approach of Lytle's troops, and succeeded in withdrawing his guns and sto...