anticipated attack of the enemy. Nothing serious, however, occurred. A continuous picket-firing was kept up during the night with but slight casualties in my command.

I am, colonel, very respectfully, your obedient servant,

ROBERT B. POTTER,

Brigadier-General, Commanding.

HEADQUARTERS NINTH ARMY CORPS, July 20, 1864.

General R. B. POTTER:

The general commanding desires that you will obtain from Colonel Pleasants as soon as possible and transmit to him an exact statement of the condition and progress of the mine at this time.

Very respectfully, your obedient servant,
J. L. VAN BUREN,

Major and Aide-de-Camp.

HDQRS. FORTY-EIGHTH PENNSYLVANIA REGIMENT, July 20, 1864.

Brigadier General R. B. POTTER,

Commanding Second Division, Ninth Corps:

GENERAL: The main gallery is completed. I have excavated two other galleries, commencing at the inner extremity of the mine, and running under the enemy's works. The length of both these galleries is fifty feet (not of each). The ground is full of springs where I am now mining, but I could have made better progress in the last three days if I had not stopped the work frequently to prop it securely, and in order to listen and ascertain if the enemy was mining near us.

Very respectfully, your obedient servant,

HENRY PLEASANTS,

Lieutenant-Colonel.

[Indorsement.]

HEADQUARTERS SECOND DIVISION, NINTH ARMY CORPS, July 20, 1864.

Respectfully forwarded for information of general commanding.

ROBERT B. POTTER,
Brigadier-General.

HEADQUARTERS SECOND DIVISION, NINTH ARMY CORPS, Before Petersburg, Va., July 20, 1864.

Lieutenant Colonel LEWIS RICHMOND,

Assistant Adjutant-General, Ninth Army Corps:

COLONEL: I have the honor to report that the enemy's fire on our left has increased during the day. He has been constructing rifle-pits between his main line and ours, on the slope at the head of the ravine beyond the railroad cut. A caisson or magazine in the rebel earthwork opposite our left was exploded at 4 o'clock this afternoon, by a shell from our battery near the burnt house.

I am, colonel, very respectfully, your obedient servant,

ROBERT B. POTTER,

Brigadier-General, Commanding.