crans's headquarters between 11 and 12 P.M. They were finally directed to proceed to Rossville and report to General Thomas. The two generals say in their reports that they started together at 12 P.M., but, according to Captain John J. McCook of Crittenden's staff, they did not get under way till 2 A.M. General Rousseau, who had just reached Chattanooga on his return from an official visit to the North, accompanied them. The two corps commanders found in line what had been gathered of their several divisions and resumed command over them.
The chief of staff's sanguine expectations for the next day were not fulfilled. In the morning, after studying the ground about Rossville by daylight, he and General Thomas became satisfied that it was not a good one for defence, being exposed on the right to an easy flanking movement, and they united in a recommendation to the General Commanding to concentrate the army at Chattanooga; he assented to it by an order received at 6 P.M. by General Thomas. The movement commenced at 9 P.M. and was successfully carried out, and by 7 A.M. the next day, September 22, the troops were all in the positions in front of Chattanooga staked off for them by engineer officers. McCook was once more on the right, Thomas in the centre, and Crittenden on the left. The retreat was not disturbed in the least by the enemy. Rifle-pits were at once dug and breastworks thrown up, and the entrenchments subsequently improved from day to day until they were sufficiently strong for all defensive purposes.
In the forenoon of the 22d, Rosecrans telegraphed to General Halleck: “Our position is a strong one. Think we can hold out for several days.” In the afternoon of the same day, he answered President Lincoln, in reply to an anxious inquiry from him about the position and condition of his army: “We are now in Chattanooga in line of battle, the enemy threatening our whole front. Have pushed to our picket line. Whether they will attack us to-day uncertain. We are about 30,000 brave and determined men,
