SPECIAL ORDERS, HEADQUARTERS ARMY OF THE POTOMAC,

No. 39.
Camp near Falmouth, Va., February 8, 1863.

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VII. Paragraph VI, of Special Orders, No. 38, of yesterday's date, is so far modified as to direct that Brigadier General W. W. Burns report for duty to Major General Rosecrans, at Murfreesborough, Tenn., instead of to the Adjutant-General of the Army.

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X. The following assignment of officers on the staff of the commanding general of the Cavalry Corps is announced:

Lieutenant Colonel J. H. Taylor, inspector-general and chief of staff.

Lieutenant Colonel A. J. Alexander, assistant adjutant-general.

Lieutenant Colonel A. S. Austin, chief commissary of subsistence.

Surg. George L. Pancoast, medical director.

First Lieutenant E. V. Summer, jr., First Cavalry, aide-de-camp.

First Lieutenant L. S. Elbert, Third Cavalry, aide-de-camp.

Second Lieutenant W. C. Hull, Thirty-seventh New York Volunteers, aide-de-camp.

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By command of Major-General Hooker:

S. WILLIAMS,

Assistant Adjutant-General.

HEADQUARTERS ARMY OF THE POTOMAC,
Camp near Falmouth, Va., February 9, 1863.

Major General JOHN F. REYNOLDS,

Commanding First Corps:

The following will be the division of the picket-line of infantry during the present position camps. These changes become necessary by the recent movements and changes of positions:

Corps. Detail, From-

at least-

First 1,900 Potomac River to

Baill's

Sixth 2,500 Ball's to Rappahannock,

opposite Deep Run.

Second 1,700 Rappahannock, opposite

Deep Run, to where

present line leaves the

river.

Third 1,900 Rappahannock to Oder's

Fifth 1,600 Oder's to Embry's.

Eleventh and Twelfth 3,000 Embry's to Aquia Creek

A staff officer each corps will report to Brigadier-General Warren, at these headquarters, for information as to the points described. The changes will be made upon previous arrangement and understanding between corps commanders as to time, &c. Care will be taken that staff officers, detailed as general officers of outposts, make themselves acquainted with the localities previous to any changes. Corps commanders will report by letter to these headquarters when the changes are effected and their pickets in the positions indicated.

By command of Major-General Hooker:

S. WILLIAMS,

Assistant Adjutant-General.

(Copy furnished commanding officer of each corps.)