attempt to proceed to Fredericksburg, and that you will send such men to the provost-marshal general at these headquarters that they may be returned to their regiments. There are with the supply trains of this army near Tabernacle Church, as guard, some 3,000 dismounted cavalry, who can be employed in arresting stragglers, and used in sending them here. The commander of the dismounted cavalry has been instructed to acquaint you with the strength of his command, its location, and to furnish such guards for bringing forward stragglers as may be required.

I am, very respectfully, your obedient servant,

S. WILLIAMS,

Assistant Adjutant-General.

CAVALRY PICKET, May 12, 1864.

[General BURNSIDE:]

GENERAL: The rebel battery on our extreme left has very little support. It is now in the rear of the house where it commenced firing. There is none of the enemy moving toward [us]. There are about 75 rebel cavalry on our extreme left.

General, I remain, your obedient servant,

JACOB H. DEWEES,

Major Thirteenth Pennsylvania Cavalry.

HEADQUARTERS ARMY OF THE POTOMAC,
May 12, 1864.

COMMANDING OFFICER DISMOUNTED CAVALRY:

The commanding general directs that you acquaint Brigadier-General Ferrero, who has charge of the general duty of guarding the supply trains, with the number of dismounted cavalry with the trains, so that there may be co-operation with the train guards.

Very respectfully, your obedient servant,

CHAS. E. PEASE,

Assistant Adjutant-General.

HEADQUARTERS ARMY OF THE POTOMAC,
May 12, 1864 - 4.30 p. m.

Major M. H. BEAUMONT,

First New Jersey Cavalry, Comdg, Dismounted Men:

SIR: I am directed by the major-general commanding to inform you that Brigadier-General Patrick, provost-marshal-general, has been authorized to call upon you for such assistance in the way of guards for prisoners as he may require. You will please furnish the details as called for.

Very respectfully, your obedient servant,

CHAS. E. PEASE,

Assistant Adjutant-General.