RESACA, May 12, 1864.

General MACKALL:

General Cleburne dispatches at 2 p. m.: "Prisoner has just made statement thought to be reliable. Thomas is at Buzzard Roost. Fifteenth, Sixteenth, and part of Seventeenth, [and] Hooker, except the portion opposite Dug Gap, is though or in neighborhood of Snake Creek Gap. Sherman is at Snake Creek Gap. prisoner says he expected a fight to-day."

L. POLK,

Lieutenant-General.

RESACA, May 12, 1864-3 p. m.

Brigadier-General MACKALL, Chief of Staff, Dalton, Ga.:

In pursuance of instructions, General Walker has been ordered to move forward promptly to Calhoun. He will receive the orders suggested. The whole of Loring's division will be here in the course of two hours. His batteries will reach here to-night.

L. POLK,

Lieutenant-General.

RESACA, May 12, 1864-5 p. m.

Brigadier-General MACKALL, Chief of Staff, Dalton, Ga.:

General Walker has ordered to the effect that corps commanders will resume the command of their respective divisions. He has also orders to report to me at Resaca, which is the last order. The first-mentioned was received last. He is this far on his way to Calhoun, Ga., in obedience to the order to report to General Polk. Is he right?

L. POLK,

Lieutenant-General.

ROME, GA., May 12, 1864.

(Received Resaca 5.30.)

Major-General LORING:

We will leave this evening at 5 o'clock. We will be behind schedule time; have the State road open four our trains.

JOHN D. MYRICK,

Major, &c.

DEMOPOLIS, ALA., May 12, 1864.

Lieutenant-General POLK:

It is uncertain when Colonel Lowry can move from here; it is important to get corn to Selma, all being issued toward Blue Mountain. The quartermaster is making every effort to procure them.

S. D. LEE,

Major-General.

RESACA, May 12, 1864.

Major-General LORING,

Brigadier-General CANTEY,

Commanding Division:

GENERAL: The lieutenant-general commanding directs you to relieve to-morrow morning at daylight the details from your command ordered