GARNETT'S MOUNTAIN, April 27, 1864.

Captain MERRILL,

Chief Signal Officer:

New camp seen below Barnett's Ford. Enemy busy on line of works. Artillery in position at Raccoon Ford.

WIGGINS and FULLER.

HEADQUARTERS ARMY OF THE POTOMAC,
April 27, 1864-11.45 a.m.

COMMANDING OFFICER SIXTH CORPS:

I have telegraphed for information respecting the two regiments of Shaler's brigade at Sandusky. General Meade thinks you had better provide the transportation as if they were here.

S. WILLIAMS,

Assistant Adjutant-General.

HEADQUARTERS ARMY OF THE POTOMAC,
April 27, 1864.

COMMANDING OFFICER SIXTH CORPS:

Major Vincent states that the two regiments of Shaler's brigade at Sandusky will probably leave that place to rejoin your command on Friday next.

S. WILLIAMS,

Assistant Adjutant-General.

ALEXANDRIA, VA., April 27, 1864.

(Received 2.30 p.m.)

Major-General HALLECK,

Chief of Staff:

Would like to have the Twenty-second New York keep their horses. Please have General Augur order the three cavalry regiments to proceed direct to Fairfax Court-House with five days' rations and 150 rounds ammunition each. Their transportation can be returned from Fairfax. All regiments to report to me had hereafter better go by way of Fairfax. I have given all the orders to that effect that I am authorized to do. The troops moved from here this morning.

A. E. BURNSIDE,

Major-General.

HEADQUARTERS ARMY OF THE POTOMAC,
April 27, 1864-12.15 p.m.

Major General A. E. BURNSIDE:

Brigadier-General Briggs, at Alexandria; Colonel McCandless, at Bristoe Station, and Brigadier-General Griffin, at Rappahannock Station, can indicate to you where the troops of this army, acting as guards along the railroad and to be relieved by your command, are located. But in addition to these details are some small detachments performing special railroad service as wood-choppers, guards