I directed several days ago that all reinforcements for the army should be sent to you. I am not advised of the number that may have gone, but suppose you have received from six to ten thousand. General Smith will also reach you as soon as the enemy could, going by the way of Richmond.

The balance of the force will not be more than one day behind, unless detained by the whole of Lee's army, in which case you will be strong enough.

I wish you would direct the proper staff officers, your chief-engineer and your chief-quartermaster, to commence at once the collection of all the means in their reach for crossing the army on its arrival. If there is a point below City Point where a pontoon bridge can be thrown, have it laid.

Expecting the arrival of the 18th corps by Monday night, if you deem it practicable from the force you have to seize and hold Petersburg, you may prepare to start, on the arrival of troops to hold your present lines. I do not want Petersburg visited, however, unless it is held, nor an attempt to take it, unless you feel a reasonable degree of confidence of success. If you should go there, I think troops should take nothing with them except what they can carry, depending upon supplies being sent after the place is secured. If Colonel Dent should not succeed in securing the requisite amount of transportation for the 18th corps before reaching you, please have the balance supplied.