of the road. Trains will report to you at Fairfax Station to-day for the purpose. Send the necessary guards with them. As soon as these troops ar this side Bull Run, you will order the Irish Brigade to Alexandria ready to be sent to the Army of the Potomac. Make disposition of your remaining forces to protect the railroad from Bull Run to Alexandria. Have the bridge train brough in.

C. C. AUGUR,

Major-General.

HDQRS. DEPT. OF WASHINGTON, 22nd ARMY CORPS, Washington, D. C., May 12, 1864.

Brigadier General R. O. TYLER,
Commanding at Fairfax Court-House:

GENERAL: Relive all officers and enlisted men belonging to the Irish Legion. You will not accompany the brigade.

J. H. TAYLOR,

Chief of Staff and Assistant Adjutant-General.

HDQRS. CAVALRY DIVISION, DEPT. OF WEST VIRGINIA, Five miles from Christiansburg, May 12, 1864.

Brigadier-General DUFFIE:

GENERAL: General Averell desires that you will move to the macadamized road, and thence to Christiansburg by these headquarters, reaching this point at 4 p. m. He also desires that you will increase your pioneer party to twenty men, furnish them with axes and turpentine, if you have it, and send them along the railroad to destroy the bridges between New River and Christiansburg. They will commence operations as soon as possible.

Respectfully,
WILL RUMSEY,

Assistant Adjutant-General.

P. S.-There are twenty-six bridges on the railroad between New River, &c.

HDQRS. CAVALRY DIVISION, DEPT. OF WEST VIRGINIA, May 12, 1864.

Brigadier-General DUFFIE:

GENERAL: General Averell desires you to send a regiment rapidly forward to Blacksburg. If, on arriving there, they find that General Crook has left, they will move out toward Christiansburg and take up a good position, to hold that road against the advance of the enemy from that direction. It is important that they get to Blacksburg before the enemy.

Respectfully,
WILL RUMSEY,

Assistant Adjutant-General.