, Brigadier-General Birney commanding, and MacKenzie's
cavalry, took up his line of march in pursuance of the foregoing
instructions, and reached the position assigned him near Hatcher's Run
on the morning of the 29th. On the 28th the following instructions were
given to General Sheridan:

"CITY POINT, VA., March 28, 1865.

"GENERAL:--The 5th army corps will move by the Vaughn Road at three A.M.
to-morrow morning. The 2d moves at about nine A.M., having but about
three miles to march to reach the point designated for it to take on the
right of the 5th corps, after the latter reaching Dinwiddie Court House.
Move your cavalry at as early an hour as you can, and without being
confined to any particular road or roads. You may go out by the nearest
roads in rear of the 5th corps, pass by its left, and passing near to or
through Dinwiddie, reach the right and rear of the enemy as soon as you
can. It is not the intention to attack the enemy in his intrenched
position, but to force him out, if possible. Should he come out and
attack us, or get himself where he can be attacked, move in with your
entire force in your own way, and with the full reliance that the army
will engage or follow, as circumstances will dictate. I shall be on the
field, and will probably be able to communicate with you. Should I not
do so, and you find that the enemy keeps within his main intrenched
line, you may cut loose and push for the Danville Road. If you find it
practicable, I would like you to cross the South Side Road, between
Petersburg and Burkesville, and destroy it to some extent. I would not
advise much detention, however, until you reach the Danville Road, which
I would like you to strike as near to the Appomattox as possible. Make
your destruction on that road as complete as possible. You can then
pass on to the South Side Road, west of Burkesville, and destroy that in
like manner.

"After having accomplished the destruction of the two railroads, which
are now the only avenues of supply to Lee's army, you may return to this
army, selecting your road further south, or you may go on into North
Carolina and join General Sherman. Should you select the latter course,
get the information to me as early as possible, so that I may send
orders to meet you at Goldsboro'.

"U. S. GRANT, Lieutenant-General.
"MAJOR-GENERAL P. H. SHERIDAN."

On the morning of the 29th the movement commenced. At night the cavalry
was at Dinwiddie Cou