HEADQUARTERS EIGHTH ARMY CORPS,
Baltimore, December 29, 1862.

Colonel J. A. GALLIGHER,

Commanding Thirteenth Pennsylvania Cavalry, Point of Rocks:

You will communicate the intelligence to General Kenly, at Harper's Ferry, which you have sent to me, in regard to the force in your front and at Leesburg. A battery was sent there yesterday.

ROBT. C. SCHENCK,

Major-General, Commanding.

WAR DEPARTMENT,

Washington, December 29, 1862.

Brigadier-General KELLEY and

COMMANDING OFFICER HARPER'S FERRY, W. VA.:

A cavalry raid has passed by Fairfax toward Leesburg. It is quite possible that they will attempt to cross the river and cut the Baltimore and Ohio Railroad or threaten Harper's Ferry. Every precaution should be taken to intercept them and to prevent damage to the road.

H. W. HALLECK,

General-in-Chief.

HEADQUARTERS DEFENSES OF WASHINGTON, December 29, 1862-1 p.m.

General J. G. PARKE,
Chief of Staff, Army of the Potomac:

Some of my troops occupied Annandale last night. The rebel cavalry passed between there and Fairfax Court-House last night, moving in the direction of Lewinsville. I at this moment learned that a force of rebel cavalry, taking about two hours and a half, passed through Vienna, commencing at 12 a.m. last night. They were followed as far as Hunter's Mills, and then struck off toward the Ox road at Frying Pan. Had about 40 prisoners, including citizens.

S. P. HEINTZELMAN,

Major-General, Commanding.

SPECIAL ORDERS,
HEADQUARTERS ARMY OF THE POTOMAC,

No. 366. Camp near Falmouth, Va., December 29, 1862.

* * * * * * *

III. Brigadier General John C. Robinson, U. S. Volunteers, will report without delay to Major General William B. Franklin, commanding left grand division, for assignment to the command of the Second Division (late Gibbon's), First Corps.

By command of Major-General Burnside:

EDWARD M. NEILL,

Captain and Assistant Adjutant-General.

CIRCULAR.] HDQRS. 5TH ARMY CORPS, CENTER GRAND DIV.,

December 29, 1862.

The following communication has been received from headquarters center grand division, and is published for the information and government