...st gallantly. The enemy was now very near Williamsport, and this determined and vigorous attack in rear soon compelled him to raise the siege of that place, and leave in hasty discomfiture by the Downsville road. His withdrawal was favored by night, which set in just as we reached the ridge overlooking Williamsport. An important auxilliary to this attack was rendered by Brigadier-General Fitz. Lee, ...