coming on about 2 p. m. compelled me to leave the mountain. Should the present weather continue I do not think it necessary to detail an escort to-morrow, as observation will be impossible.

G. J. CLARKE.

HEADQUARTERS ARMY OF THE POTOMAC,
March 22, 1864.

Major-General SYKES:

I have ordered General Gregg to send a force of cavalry to Fant's Mill and to scour the country on the north bank of the Rappahannock in that direction, and report any movement of the enemy. General Gregg's force has started from Warrenton.

A. PLEASONTON,

Major-General.

HEADQUARTERS FIRST CAVALRY DIVISION,
Culpeper, March 22, 1864.

Lieutenant Colonel C. ROSS SMITH,

Chief of Staff, Cavalry Corps:

The signal party at Thoroughfare Mountain report nothing unusual to-day. Small patrols of the enemy at Madison Court-House. Enemy's pickets on Robertson, as usual.

W. MERRITT,

Brigadier-General.

HEADQUARTERS CAVALRY CORPS,
March 22, 1864.

General GREGG,

Warrenton:

The major-general commanding directs that you send a force of cavalry toward Fant's Mill and scour the country in that direction. General Sykes reports that some forty of the enemy's cavalry approached his picket-line between Fant's and Dulaney's Mills this morning about 1 a. m. Please acknowledge receipt of this.

C. ROSS SMITH,

Lieutenant-Colonel, &c.

HEADQUARTERS TENTH NEW YORK CAVALRY,
March 22, 1864.

Lieutenant JOHN B. MAITLAND,

Actg. Asst. Adjt. General, 2nd Brigadier, 2nd Div., Cav. Corps:

SIR: I have the honor to honor to report that I scouted the country thoroughly between our lines and our infantry picket-lines this side of the river. I learned nothing of the enemy until I reached a point opposite Fox's Ford, where I found one of the Eighteenth Pennsylvania Cavalry Regiment, who informed me that his regiment had a sharp skirmish with a small party of the enemy 1st night. About three-fourths of a mile farther I came to our infantry picket-line and saw the brigade officer of the day, from whom I learned that an infantry scouting party had been to Sulphur Springs