held in reserve.

The morning of the 12th opened foggy, delaying the start more than half
an hour.

The ground over which Hancock had to pass to reach the enemy, was
ascending and heavily wooded to within two or three hundred yards of the
enemy's intrenchments. In front of Birney there was also a marsh to
cross. But, notwithstanding all these difficulties, the troops pushed
on in quick time without firing a gun, and when within four or five
hundred yards of the enemy's line broke out in loud cheers, and with a
rush went up to and over the breastworks. Barlow and Birney entered
almost simultaneously. Here a desperate hand-to-hand conflict took
place. The men of the two sides were too close together to fire, but
used their guns as clubs. The hand conflict was soon over. Hancock's
corps captured some four thousand prisoners among them a division and a
brigade commander twenty or more guns with their horses, caissons, and
ammunition, several thousand stand of arms, and many colors. Hancock,
as soon as the hand-to-hand conflict was over, turned the guns of the
enemy against him and advanced inside the rebel lines. About six
o'clock I ordered Warren's corps to the support of Hancock's. Burnside,
on the left, had advanced up east of the salient to the very parapet of
the enemy. Potter, commanding one of his divisions, got over but was
not able to remain there. However, he inflicted a heavy loss upon the
enemy; but not without loss in return.

This victory was important, and one that Lee could not afford to leave
us in full possession of. He made the most strenuous efforts to regain
the position he had lost. Troops were brought up from his left and
attacked Hancock furiously. Hancock was forced to fall back: but he
did so slowly, with his face to the enemy, inflicting on him heavy loss,
until behind the breastworks he had captured. These he turned, facing
them the other way, and continued to hold. Wright was ordered up to
reinforce Hancock, and arrived by six o'clock. He was wounded soon
after coming up but did not relinquish the command of his corps,
although the fighting lasted until one o'clock the next morning. At
eight o'clock Warren was ordered up again, but was so slow in making his
dispositions that his orders were frequently repeated, and with
emphasis. At eleven o'clock I gave Meade written orders to relieve
Warren from his command if he failed to move promptly. Hancock placed
batteries on high