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
details were made: General Hooker, who was now at Bridgeport, was
ordered to cross to the south side of the Tennessee and march up by
Whitesides and Wauhatchie to Brown's Ferry. General Palmer, with a
division of the 14th corps, Army of the Cumberland, was ordered to move
down the river on the north side, by a back road, until opposite
Whitesides, then cross and hold the road in Hooker's rear after he had
passed. Four thousand men were at the same time detailed to act under
General Smith directly from Chattanooga. Eighteen hundred of them, under
General Hazen, were to take sixty pontoon boats, and under cover of
night float by the pickets of the enemy at the north base of Lookout,
down to Brown's Ferry, then land on the south side and capture or drive
away the pickets at that point. Smith was to march with the remainder
of the detail, also under cover of night, by the north bank of the river
to Brown's Ferry, taking with him all the material for laying the bridge
as soon as the crossing was secured.

On the 26th, Hooker crossed the river at Bridgeport and commenced his
eastward march. At three o'clock on the morning of the 27th, Hazen
mov