detailed for pickets. Call on Colonel Sumner's regiment, now under command of Colonel Patton, for such cavalry detail for picket as you may require to be left behind. Communicate this order to Colonel Patton, and tell him to come or send an officer to your headquarters to arrange for positing the pickets. This must be dome to-night. Acknowledge receipt.

THEODORE READ,

Assistant Adjutant-General.

HEADQUARTERS CAVALRY,
March 24, 1865.

Lieutenant-Colonel READ,

Assistant Adjutant-General.

Your communication is received. Has the infantry detail been ordered to report? If so, when is it to report?

R. S. MACKENZIE,

Brigadier-General, Cavalry Division.

HDQRS. DEPT. OF VIRGINIA, ARMY OF THE JAMES,
In the Field, March 24, 1865-6.55 p. m.

Brigadier-General MACKENZIE,

Commanding Cavalry Division:

General Gibbon was ordered to send you 200 infantry to-night.

THEODORE READ,

Assistant Adjutant-General.

HEADQUARTERS CAVALRY,
March 24, 1865.

Lieutenant-Colonel READ,

Assistant Adjutant-General:

Has the general commanding any further instruction to give me with regard to the cavalry expedition other than those he gave me verbally?

R. S.. MACKENZIE,

Brigadier-General, Cavalry Division.

HDQRS. DEPT. OF VIRGINIA, ARMY OF THE JAMES,
In the Field, March 24, 1865-7.30 p. m.

Brigadier-General MACKENZIE,

Headquarters Cavalry Division:

The major-general commanding has no further instruction to give you. Send back frequent couriers and keep up a constant communication between your forces by couriers. The infantry go to Long Bridge.

THEODORE READ,

Assistant Adjutant-General.