intrenched line close up to
Petersburg, two enclosed works outside of it, Fort Gregg and Fort
Whitworth. We thought it had now become necessary to carry them by
assault. About one o'clock in the day, Fort Gregg was assaulted by
Foster's division of the 24th corps (Gibbon's), supported by two
brigades from Ord's command. The battle was desperate and the National
troops were repulsed several times; but it was finally carried, and
immediately the troops in Fort Whitworth evacuated the place. The guns
of Fort Gregg were turned upon the retreating enemy, and the commanding
officer with some sixty of the men of Fort Whitworth surrendered.

I had ordered Miles in the morning to report to Sheridan. In moving to
execute this order he came upon the enemy at the intersection of the
White Oak Road and the Claiborne Road. The enemy fell back to
Sutherland Station on the South Side Road and were followed by Miles.
This position, naturally a strong and defensible one, was also strongly
intrenched. Sheridan now came up and Miles asked permission from him to
make the assault, which Sheridan gave. By this time Humphreys had got
through the outer works in his front, and came up also and assumed
command over Miles, who commanded a division in his corps. I had sent
an order to Humphreys to turn to his right and move towards Petersburg.
This order he now got, and started off, thus leaving Miles alone. The
latter made two assaults, both of which failed, and he had to fall back
a few hundred yards.

Hearing that Miles had been left in this position, I directed Humphreys
to send a division back to his relief. He went himself.

Sheridan before starting to sweep down to Petersburg had sent Merritt
with his cavalry to the west to attack some Confederate cavalry that had
assembled there. Merritt drove them north to the Appomattox River.
Sheridan then took the enemy at Sutherland Station on the reverse side
from where Miles was, and the two together captured the place, with a
large number of prisoners and some pieces of artillery, and put the
remainder, portions of three Confederate corps, to flight. Sheridan
followed, and drove them until night, when further pursuit was stopped.
Miles bivouacked for the night on the ground which he with Sheridan had
carried so handsomely by assault. I cannot explain the situation here
better than by giving my dispatch to City Point that evening:

BOYDTON ROAD, NEAR PETERSBURG, April 2, 1865.--4.