CHANCELLORSVILE, VA.,

May 4, 1863 - 8.30 a. m.

Major-General COUCH:

The general commanding desires that you hold one division of your command in readiness to move upon the flank of the enemy in the event that an attack, which he does not anticipate, shall be made upon the line of Generals Slocum and Howard.

J. H. VAN ALEN,

Brigadier-General and Aide-de-Camp.

CHANCELLORSVILLE, VA.,

May 4, 1863 - 8.30 a. m.

Major-General SLOCUM:

The general commanding had received your dispatch without date. He is aware of the weakness of your line, and as that of General Couch appears to be the strongest, and one which the enemy will be the least likely to attack, he has directed General Couch to hold one division of his command in readiness to move upon the flank of the enemy without further orders in the event that an attack should be made on the front held by yourself and General Howard. This, however, he does not anticipate.

J. H. VAN ALEN,

Brigadier-General and Aide-de-Camp.

NEAR SALEM CHAPEL, VA.,

May 4, 1863 - 1.30 a. m.

General HOOKER:

We were checked here last night and held until dark. I believe the enemy have been re-enforcing all night and will attack me in the morning. How do matters stand with you? Send me instructions.

JOHN SEDGWICK,

Major-General, Commanding.

MAY 4, 1863 - 2.45 a.m.

Major-General HOOKER:

Following just received from signal station at the Phillips' house, 2 p. m.:

The enemy reported near the Temple house. Are moving south toward the Telegraph road, and the movement is by the flank. Cannot tell their object.

S. F. BARSTOW,

Assistant Adjutant-General.

HEADQUARTERS ARMY OF THE POTOMAC,
May 4, 1863 - 6 a. m.

General SEDGWICK;

The general commanding desires you to telegraph to him your exact position. What information have you respecting the force of enemy