HEADQUARTERS ARMY OF THE POTOMAC,
September 3, 1864.

Brigadier-General GREGG,

Commanding Cavalry, Army of the Potomac:

The major-general commanding directs that you send a detachment of 200 cavalry to report for duty to Major-General Warren, until further orders.

A. A. HUMPHREYS,

Major-General and Chief of Staff.

HEADQUARTERS SECOND CORPS,
September 3, 1864.

Major-General ORD:

MY DEAR GENERAL: I have just received the Richmond paper and thank you for it. Nothing new. I have just had some prisoners; they say everything is quiet. The enemy's brigades do not, I find, number more than 400 to 600 men so far as I have examined the prisoners, and I have had many.

WINF'D S. HANCOCK,

Major-General of Volunteers.

WATER BATTERY, September 3, 1864-11 a.m.

Captain NORTON,

Chief Signal Officer, Butler's Headquarters:

The rebs are evidently building a magazine in their new works this a.m. They have a line of short rifle-pits entrenching from the works to the river.

PARTRIDGE,

Signal Officer.

SPECIAL ORDERS,
HEADQUARTERS TENTH ARMY CORPS,
Numbers 30
Before Petersburg, Va., September 3, 1864.

Captain C. M. Robins, commissary of subsistence of volunteers, is hereby announced as the acting chief commissary of subsistence of the corps.

By command of Major General D. B. Birney:

ED. W. SMITH,

Assistant Adjutant-General.

HEADQUARTERS TENTH ARMY CORPS,
September 3, 1864.

Brigadier General S. WILLIAMS

Assistant Adjutant-General:

Nothing new on our lines. During cheering of troops as to Atlanta news the enemy opened upon us. This caused a little more than usual firing. Lieutenant-Colonel McGilvery, my chief of artillery, died suddenly yesterday from effects of chloroform taken during amputation of finger, wounded at battle Deep Bottom. I have appointed Lieutenant-Colonel Jackson, acting chief artillery.

D. B. BIRNEY,

Major-General.