provisional brigade of Colonel Allabach, the Tenth Connecticut, and Thirty-fourth Massachusetts. They will report accordingly.

By command of Brigadier-General Barnard:

J. BRICE SMITH,

Assistant Adjutant-General.

[12.]

HEADQUARTERS ARMY OF THE POTOMAC,
September 2, 1862-12.20 a. M.

Major General E. D. KEYES,

Yorktown:

Push the embarkment of Averell's cavalry as rapidly as possible and send them to Georgetown.

A. V. COLBURN,

Assistant Adjutant-General.

[12.]

HEADQUARTERS ARMY OF THE POTOMAC,
Washington, D. C., September 2, 1862-12.17 p. M.

General J. D. COX,

Commanding, Upton's Hill:

The commanding general desires you if you have any disposable cavalry to send out a scouting party to Flint Hill, to ascertain if possible whether Jackson is in that vicinity.

R. B. MARCY,

Chief of Staff.

[12.]

HEADQUARTERS,
Washington, D. C., September 2, 1862-1.15 p. M.

Brigadier General J. D. COX,

Upton's Hill:

General Pleasonton has been directed to order the companies of the Eighth Illinois Cavalry to report to you as fast as they arrive.

S. WILLIAMS,

Assistant Adjutant-General.

[12.]

UPTON'S HILL, September 2, 1862.

General WILILAMS,

Assistant Adjutant-General:

Surgeon Hutchinson, Twenty-second New York, from Centerville, reports himself taken prisoner, with his wounded, and released this morning. He says Jackson's command was last night near Flint Hill, north of Fairfax Court-House, but he thinks, from what he overheard, that the main part of the rebel force is pushing for the Potomac. I have ordered him to report in person at General Halleck's headquarters or yours, if at Washington. My outpost at Bancroft's Mill, on Columbia pike, has report of a dash last night at a wagon train near Fairfax, and of repulse of enemy in the attack. I am carefully picketing and scouting the country from Bancroft's Mill through Mill's Cross-Roads, Freedom Hill, &c.

J. D. COX,

Brigadier-General, Commanding.

[12.]