at there was no longer a chance for the cavalry to turn the
enemy's left, our attention was directed to keeping up the deception
of Lee, and on the afternoon of the 28th Hancock's corps withdrew to
a line nearer the head of the bridge, the cavalry drawing back to a
position on his right. From now on, all sorts of devices and
stratagems were practiced--anything that would tend to make the
Confederates believe we were being reinforced, while Hancock was
preparing for a rapid return to Petersburg at the proper time. In
order to delude the enemy still more after night-fall of the 28th I
sent one of my divisions to the south side of the James, first
covering the bridgeway with refuse hay to keep the tramp of the horses
from being heard. After daylight the next morning, I marched this
division back again on foot, in full view of the enemy, to create the
impression of a continuous movement large bodies of infantry to the
north side, while the same time Kautz was made to skirmish with the
enemy on our extreme right. These various artifices had the effect
intended, for by the evening of the 29th Lee had transferred all his
infantry to the north bank of the James, except three divisions, and
all his cavalry save one.

The morning of the 30th had been fixed upon to explode the mine and
assault the enemy's works, so after dark on the evening of the 29th
Hancock hastily but quietly withdrew his corps to the south side to
take part in the engagement which was to succeed the explosion, and I
was directed to follow Hancock. This left me on the north side of
the river confronting two-thirds of Lee's army in a perilous
position, where I could easily be driven into Curl's Neck and my
whole command annihilated. The situation, therefore, was not a
pleasant one to contemplate, but it could not be avoided. Luckily
the enemy did not see fit to attack, and my anxiety was greatly
relieved by getting the whole command safely across the bridge
shortly after daylight, having drawn in the different brigades
successively from my right. By 10 o'clock on the morning of the 30th
my leading division was well over toward the left of our army in
front of Petersburg, marching with the purpose to get around the
enemy's right flank during the operations that were to succeed the
mine explosion, but when I reached General Meade's headquarters I
found that lamentable failure had attended the assault made when the
enemy's works were blown up in the morni