across in the same boats, or a portion of them; the Tennessee and South Chickamauga were to be bridged, and then the artillery crossed and moved at once to seize a foothold on the bridge, taking up a line facing the enemy’s right flank, near the tunnel. General Howard’s corps of General Hooker’s command was to cross into the town by the two bridges, and fill the gap between General Sherman’s proposed position and the main body of General Thomas’s army. General Hooker, with the remainder of his force and a division sent to Trenton, which should return, were to carry the point of Lookout, and then threaten the enemy’s left, which would thus be thrown back, being forced to evacuate the mountain and take position on the ridge; and then the Federal troops, being on both flanks, and upon one flank threatening the enemy’s communications, were to advance the whole line or turn the other flank, as the chances might dictate. Then a part of the force was to follow as far as possible, while General Sherman destroyed the railroad from Cleveland to Dalton, and then pushed on to relieve Knoxville, and capture, disperse, or drive off General Longstreet from before it. BATTLE OF LOOKOUT MOUNTAIN. NOVEMBER 24, 1863. General Grant’s forward movement against the rebel position on Lookout Mountain commenced on the 24th. The preliminary movements had been successfully carried out, the Tennessee having been bridged on the 23d, and General Sherman’s troops pushed across the river. The ascent to Lookout Mountain is very difficult, and was, of course, rendered all the more arduous and perilous, by the enemy’s fortifications. But difficulty was no bar, either to the gallant Army of the Cumberland or to its brave leaders. Early on the morning of the 24th, General Hooker’s forces commenced to move along the valley, greatly to the astonishment of the rebels, who were watching the movement, from their vantage ground upon the mountain, and who made no immediate opposition to the attempted ascent of Lookout.