SPECIAL ORDERS,
WAR DEPARTMENT, ADJT. GENERAL 'S OFFICE,
Numbers 169
Washington, June 18, 1863.

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XXI. Leave of absence for thirty days is hereby granted Brigadier General E. L. Viele, U. S. Volunteers, By order of the Secretary of War:

E. D. TOWNSEND,

Assistant Adjutant-General.

CENTRENVILLE, June 19, 1863-12. 30 a. m.

Major-General HOOKER, Fairfax Station:

I found a large force of rebel cavalry at Warrenton. I drove in their pickets to within 1 mile of the place. Two regiments attempted to land me on each side. The number is said to be 5, 000 or 6, 000. A contraband said Stuart was to be there to-day.

Very respectfully,

O. DE FOREST,

Colonel, Commanding.

HEADQUARTERS ARMY OF THE POTOMAC, June 19, 1863.

Major-General SLOCUM, Leesburg:

Do you know of any troops (enemy) in your vicinity? Have you heard of any of Longstreet's troops in Union during the week past? Is your position a strong one?

DANL. BUTTERFIELD,
Major-General.

HEADQUARTERS TWELFTH CORPS, Leesburg, Via., via Poolesville, Md.,

June 19, 1863-10. 40 a. m.

General JOSEPH HOOKER, Headquarters Army of the Potomac:

I arrived here with my command at 5 p. m. I have heard nothing reliable relative to the position of the enemy. A pontoon bridge should be thrown across the river, near Edwards Ferry, if we are to remain here any length of time. The material for a bridge, with a party to build it, should be sent at once. I have communicated with Reynolds and Howard. Shall leave an orderly at the telegraph office from which this is sent.

H. W. SLOCUM,

Major-General.

HEADQUARTERS ARMY OF THE POTOMAC,
June 19, 1863.

General SLOCUM, Leesburg, via Poolesville:

Your dispatch received. What advantages are to be gained by putting a bridge at Edwards Ferry? Are there any reasons why