HEADQUARTERS SECOND ARMY CORPS, July 21, 1864.

Brigadier General S. WILLIAMS,
Assistant Adjutant-General, Army of the Potomac:

GENERAL: In compliance with paragraph 1, Special Orders, Numbers 171, headquarters Army of the Potomac, June 28, 1864, I have the honor to report the following organizations as having left the command by reason of expiration of term of service, from July 10 to 20:

Present when

discharged.

Offi Men. Aggre Date of expiration

Organization. cers gate. of term of service.

.

16th Massachusetts 6 105 111 July 11, 1864.

Volunteers.

15th Massachusetts 5 62 67 July 12, 1864.

Volunteers.

20th Massachusetts 1 20 21 July 16, 1864.

Volunteers.

Total. 12 187 199

Seventy-second and One hundred and sixth Pennsylvania Volunteers ordered to Washington, in compliance with Special Orders, Numbers 191,

headquarters Army of the Potomac. Terms of service expire, respectively, 10th and 16th of August, 1864.

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

WINF'D S. HANCOCK,

Major-General of Volunteers, Commanding.

HEADQUARTERS SECOND ARMY CORPS, July 21, 1864.

Brigadier General S. WILLIAMS:

There has been no change in the disposition of my troops since last report, except that the Second Division is relieved from fatigue, and the Third Division detailed for same duty for to-morrow.

WINF'D S. HANCOCK,
Major-General.

HEADQUARTERS SECOND ARMY CORPS, July 21, 1864.

Brigadier-General BARLOW,

Commanding First Division:

GENERAL: The major-general commanding directs that you move your division at 5 a. m. to-morrow to the Avery house (General Warren's headquarters) for fatigue duty, leaving small regimental guards in camp. An engineer officer will be at the Avery house to conduct the division from that point and to designate the work to be done.

Very respectfully, your obedient servant,

C. H. MORGAN,

Lieutenant-Colonel and Chief of Staff.