...ilroad running to Alexandria. On the 12th, Lee arrived on the Rappahannock, at Warrenton Springs, after a skirmish with the Federal cavalry at Jeffersonton. That night, Gen. Stuart pushed on to Warrenton . He had guarded the flank of the army, driven off the enemy's forces everywhere, and performed invaluable service. The next day the army pushed on, the cavalry now in advance. Meade's army was ...