occasional spurs of rifle-pits half-way up the front. The enemy's
pickets extended out into the valley towards the town, so far that the
pickets of the two armies could converse. At one point they were
separated only by the narrow creek which gives its name to the valley
and town, and from which both sides drew water. The Union lines were
shorter than those of the enemy.

Thus the enemy, with a vastly superior force, was strongly fortified to
the east, south, and west, and commanded the river below. Practically,
the Army of the Cumberland was besieged. The enemy had stopped with his
cavalry north of the river the passing of a train loaded with ammunition
and medical supplies. The Union army was short of both, not having
ammunition enough for a day's fighting.

General Halleck had, long before my coming into this new field, ordered
parts of the 11th and 12th corps, commanded respectively by Generals
Howard and Slocum, Hooker in command of the whole, from the Army of the
Potomac to reinforce Rosecrans. It would have been folly to send them
to Chattanooga to help eat up the few rations left there. They were
consequently left on the railroad, where supplies could be brought to
them. Before my arrival, Thomas ordered their concentration at
Bridgeport.

General W. F. Smith had been so instrumental in preparing for the move
which I was now about to make, and so clear in his judgment about the
manner of making it, that I deemed it but just to him that he should
have command of the troops detailed to execute the design, although he
was then acting as a staff officer and was not in command of troops.

On the 24th of October, after my return to Chattanooga, the following