Then, should the enemy be forced into his intrenchments in Richmond, the Army of the Potomac would follow, and by means of transports the two armies would become a unit.
"All the minor details of your advance are left entirely to your direction.

If, however, you think it practicable to use your cavalry south of you, so as to cut the railroad about Hicksford, about the time of the general advance, it would be of immense advantage.
"You will please forward for my information, at the earliest practicable day, all orders, details, and instructions you may give for the execution of this order.
"U.

S.GRANT, Lieutenant-General.
"MAJOR-GENERAL B.F.

BUTLER." On the 16th these instructions were substantially reiterated.

On the 19th, in order to secure full co-operation between his army and that of General Meade, he was informed that I expected him to move from Fort Monroe the same day that General Meade moved from Culpeper.