...rks; but the enemy, intending to abandon his heavy guns, kept up a fire until the moment of quitting their defences. At half-past 3 o'clock on the morning of the twenty-first, Geary reported that Barnum 's brigade wa in the rebel main line. Orders were sent him and General Ward to advance the picket-lines and follow with their divisions into the city. By six o'clock A. M., Geary's division, wit...