...corps was in reserve in the rear of Cleburne and Cheatham, so as to support either. General Polk expected to make a heavy pressure in front with Cheatham's, Cleburne's and Walker's divisions, while Breckenridge with Forrest operated on the left flank of the enemy. During the night General Longstreet had arrived and assumed command of the left wing; at dawn he commenced the arrangement of his line; Hindm...