your orders on the lower ford of the Rapidan and Rappahannock Rivers.

Leave the other regiments of cavalry and your batteries. They will be replaced by others and returned to you as soon as possible. I will supply you with sufficient batteries at Culpeper.

Acknowledge the receipt of this dispatch, and let me know when you will be ready to move. I will be at Culpeper day after to-morrow night.

After to-morrow morning at 9 o'clock send telegraphic dispatches for me to Culpeper. Send forward one-half a day in advance of your column, and notify General McDowell of your approach to Culpeper.

JNO. POPE,

Major-General, Commanding.

HDQRS. THIRD ARMY CORPS, ARMY OF VIRGINIA,
Culpeper, August 8, 1862.

Colonel DUFFIE,

First Rhode Island Cavalry, also

Colonel ALLEN,

First Maine Cavalry:

SIRS: The enemy is pressing General Bayard back. Move your regiment to the right and join him. His right is on Cedar Mountain. Captain Leski, aide-de-camp, who is the bearer of this, will acquaint you with the route, &c.

Very respectfully,

S. F. BARSTOW,

Major and Assistant Adjutant-General.

HDQRS. THIRD ARMY CORPS, ARMY OF VIRGINIA,
Culpeper, August 8, 1862.

Brigadier-General BAYARD,

Commanding Cavalry Brigade:

GENERAL: General Crawford's brigade and a battery of artillery are moving to your support from this place. Colonel Duffie and Allen, with their regiments of cavalry, have also been ordered to your support.

Very respectfully,

S. F. BARSTOW,

Major and Assistant Adjutant-General.

HDQRS. THIRD ARMY CORPS, ARMY OF VIRGINIA,
Culpeper, August 8, 1862.

Colonel DUFFIE,

Commanding First Rhode Island Cavalry, south of Culpeper:

SIR: Since your regiment moved and took position the First Maine Cavalry has been ordered into your neighborhood. You will therefore give attention to the observation of the country and fords between Cedar Run and the crossing of railroad over Rapidan, joining on to General Bayard's pickets.

Very respectfully,

S. F. BARSTOW,

Assistant Adjutant-General.