GENERAL ORDERS,
HDQRS. DEPT. OF WASHINGTON, TWENTY-SECOND ARMY CORPS, Numbers 59.
July 17, 1864.

I. General Orders, Numbers 57, July 13, 1864, current series, from these headquarters, announcing Lieutenant Colonel H. H. Wells as acting inspector-general of the Department of Washington, are hereby revoked. Lieutenant-Colonel Wells will reassume at once his duties as provost-marshal-general Defenses South of Potomac.

II. General Orders, Numbers 56, July 12, 1864, current series, from these headquarters, announcing Colonel M. N. wisewell as provost-marshal-general Department of Washington, are hereby modified to read provost-marshal-general Defenses North of Potomac. His duties within this limit will be similar to those assigned by General Orders, Numbers 56, within the limits of the department.

By command of Major-General Augur:

J. H. TAYLOR,

Chief of Staff and Assistant Adjutant-General.

WASHINGTON, July 17, 1864-10. 55 a. m.

Brigadier-General HARDIN,

Tennallytown, D. C.:

Send an officer out on the River road to Poolesville, to halt and turn back to Washington all troops this side of the Potomac River belonging to the Sixth and Nineteenth Corps. He will take with him a copy of this dispatch as his authority.

H. W. HALLECK,

Major-General and Chief of Staff.

HDQRS. HARDIN'S DIVISION, 22nd ARM CORPS,
DEPARTMENT OF WASHINGTON,

Washington, D. C., July 17, 1864.

Colonel WILLIAM H. HAYWARD,

Commanding Second Brigade:

In compliance with orders from department headquarters, the general commanding directs that you relieve the company of Eighth Illinois Cavalry, now on duty in your brigade, and direct them to report to Captain Charles E. Norris, Second U. S. Cavalry, commanding at Camp Relief, Seventh street. You will retain four men from the company to serve as orderlies at your headquarters. The Second Regiment District of Columbia Volunteers will remain in camp in rear of Fort Stevens, and report to you until further orders.

Very respectfully, your obedient servant,

R. CHANDLER,

Assistant Adjutant-General

HEADQUARTERS CAVALRY BRIGADE

Near Fort Buffalo, Va., July 17, 1864-12. 15 p. m.

Lieutenant Colonel J. H. TAYLOR,

Chief of Staff and Assistant Adjutant-General:

COLONEL: I have the honor to report that a party sent out on Friday, under command of Lieutenant Tuck, Sixteenth New York Cavalry, to ascertain in regard to the running of trains on the Or-