Numbers 101. HEADQUARTERS ARMY OF VIRGINIA, Centreville, September 1, 1862-12.30 p. m.

Colonel A. T. A. TORBERT,

Commanding Brigade, near Fairfax Court-House:

Move your brigade at once to Germantown, and join it to the one under Colonel Hinks at that place. Major-General Hooker is assigned to the command of the forces arriving at Fairfax Court-House from Washington, together with those stationed at Germantown.

By command of Major-General Pope:

GEO. D. RUGGLES,

Colonel and Chief of Staff.

Numbers 102. NEAR CENTREVILLE, September 1, 1862-4 p. m.

Major-General McDOWELL:

If you hear a battle raging to-night near Centreville advance to the north, keeping your communication open with Reno and near to him, also by the right with Hooker, who will advance his left to your right.

By command of Major-General Pope:

GEO. D. RUGGLES,

Colonel and Chief of Staff.

Numbers 103. GENERAL ORDERS,
HEADQUARTERS ARMY OF VIRGINIA,

No.-.
Fairfax Court-House, September 1, 1862.

The army corps of Heintzelman, Sigel, Sumner, Porter, and Reno, as soon after daylight as possible, will begin to draw slowly to their right in the direction of Fairfax Court-House until they come closely in contact with each other. Major-General Reno will follow as closely as possible the line of the old railroad now occupied by him ; the others along the pike. He will notify those in his rear of his exact position and every step of his movement, and will ask support if he needs it. They will not be more than half a mile in rear in rear of him. If any severe engagement should occur at any point of the line, the army corps commanders nearest on the right and left will immediately send forward a staff officer to report to the general commanding the troops of the attack and to notify him that they are ready to support him if he needs it. For the present the general headquarters will be established at Fairfax Court-House.

By command of Major-General Pope:

GEO. D. RUGGLES,

Colonel and Chief of Staff.

Numbers 104. HEADQUARTERS ARMY OF VIRGINIA, Centreville, September 1, 1862-2 p. m.

Colonel TORBERT:

Send back word immediately to Alexandria to hurry up Couch's division and all other troops coming from Washington to Germantown. They must be at Germantown as early this afternoon as possible, cer-