...rsday, the eleventh instant, by the firing of the signal guns; and soon afterwards a courier from Brigadier-General Kershaw notified the Colonel commanding that the enemy were attempting to cross the Rappahannock River , opposite Fredericksburg, and ordered me to occupy its place in the line of battle, previously designated. Accordingly, the regiment was put in motion, and, about six o'clock A. M., was put in posi...