FAIRFAX COURT-HOUSE, December 28, 1864. (Received 5.40 p. m.)

Lieutenant Colonel J. H. TAYLOR,

Chief of Staff and Assistant Adjutant-General:

I have the honor to report all quiet on the line between Fairfax Court-House and Vienna. No report has been received by me from Colonel Gansevoort, commanding at Prospect Hill.

W. GAMBLE,

Colonel, Commanding Brigade.

HEADQUARTERS MIDDLE MILITARY DIVISION, December 28, 1864.

General STEVENSON:

Can cavalry cross the Shenandoah on your pontoon bridge and go around the point of the mountain to Lovettsville? Please answer at once.

P . H. SHERIDAN,
Major-General.

HARPER'S FERRY, December 28, 1864.

Major-General SHERIDAN:

Pontoon bridge all right. Cavalry can go around point. Good road.

Respectfully,

JNO. D. STEVENSON,

Brigadier-General.

HEADQUARTERS MIDDLE MILITARY DIVISION, December 28, 1864.

General STEVENSON:

If I were to put a division of 3,000 cavalry at or near Lovettsville, in Loundoun County, how long could it be supported from the forage in that county? Answer.

P. H. SHERIDAN,
Major-General, Commanding.

HEADQUARTERS, Harper's Ferry, December 28, 1864.

Major-General SHERIDAN:

I think from all that I can learn a division of 2,500 cavalry could subsist abundantly near Lovettsville for the winter. I had and estimate made of the hay and corn that could be gotten-which was 1, 5000 tons of hay and 150,000 bushels of corn.

Respectfully,

JNO. D. STEVENSON,

Brigadier-General.