the stream with the rest of the army--would still farther isolate him
from it. The stream would have to be crossed twice in the face of the
enemy to unite with the main body. The idea of crossing was therefore
abandoned.

Lee had weakened the other parts of his line to meet this movement of
Hancock's, and I determined to take advantage of it. Accordingly in the
morning, orders were issued for an attack in the afternoon on the centre
by Warren's and Wright's corps, Hancock to command all the attacking
force. Two of his divisions were brought to the north side of the Po.
Gibbon was placed to the right of Warren, and Birney in his rear as a
reserve. Barlow's division was left south of the stream, and Mott of
the same corps was still to the left of Wright's corps. Burnside was
ordered to reconnoitre his front in force, and, if an opportunity
presented, to attack with vigor. The enemy seeing Barlow's division
isolated from the rest of the army, came out and attacked with fury.
Barlow repulsed the assault with great slaughter, and with considerable
loss to himself. But the enemy reorganized and renewed the assault.
Birney was now moved to the high ground overlooking the river crossings
built by our troops, and covered the crossings. The second assault was
repulsed, again with severe loss to the enemy, and Barlow was withdrawn
without further molestation. General T. G. Stevenson was killed in this
move.

Between the lines, where Warren's assault was to take place, there was a
ravine grown up with large trees and underbrush, making it almost
impenetrable by man. The slopes on both sides were also covered with a
heavy growth of timber. Warren, before noon, reconnoitred his front
twice, the first time with one and the second with two divisions. He
was repulsed on both occasions, but gained such information of the