termined to take advantage of it by a night attack. General Hazen was said at the time to have been so strongly impressed with this danger that he sought General Hooker and urged him to concentrate, but without effect. Hooker considered an attack improbable, and the control of the roads to Kelley's Ferry too important for any risk. General Geary's division consisted of three very weak brigades numbering together not over 1500 men. This division commander had noticed that his movements and numbers were clearly observable from the rebel signal-station on Lookout Mountain; moreover, very active signalling from it made him apprehend that something was contemplated against him during the night, and he therefore exercised extra precaution in posting his pickets and grand guards. But as Howard's corps had apparently cleared the valley of the enemy to the north, he assumed that any move upon him would come from the south, and he guarded against surprise mainly from that direction. His men slept on their arms, with their cartridge-boxes on. Their rest was not disturbed until nearly eleven o'clock, when some picket firing led General Geary to have the whole camp aroused. All was quiet again until after midnight, when the discharge of the guns of our pickets to the north and east gave warning of the approach of the enemy from the side he was least expected. General Geary had barely time to form a line when a heavy body fell upon his left, firing and cheering.
Lieutenant-General Longstreet, commanding the left of the investing army, was ordered on October 27 to dislodge our troops from their new position at Brown's Ferry. While observing it with General Bragg from Lookout Mountain, he was apprised of the approach of Hooker's column. Repairing to a nearer point of observation, they watched the march of Howard's corps down the valley and saw Geary's division, which they took to be the rear guard, come to a halt. They made a correct estimate of the strength of both bodies, and saw in the long distance sepa-
