MONOCACY JUNCTION, MD., August 4, 1864.

(Received 9 p. m.)

Major General H. W. HALLECK, Chief of Staff:

The following just received from General Kelley:

CUMBERLAND, MD., August 4, 1864-3 p. m.

Major-General HUNTER:

General Dufie reports that a force of about 2,000 rebels crossed Cherry Run this a. m. and was marching toward Hancock. It is possible Early's whole force it to move into and escape via the South Branch Valley.

B. F. KELLEY,

Brigadier-General.

D. HUNTER,

Major-General.

MONOCACY JUNCTION, MD., August 4, 1864-9 p. m.

(Received 10 p. m.)

Major-General HALLECK, Chief of Staff:

Following just received from General Howe:

HARPER'S FERRY, August 4, 1864-9 p. m.

General HUNTER:

The indications at dark were that this place would be attacked in the morning, both on the Virginia and Maryland side of the river. If the enemy attacks on both sides at the same time I think there should be 3,000 men sent besides those you say you have sent. None have reached here yet.

A. P. HOWE,

Brigadier-General, Commanding.

D. HUNTER,

Major-General.

HARPER'S FERRY, VA., August 4, 1864-10.15 p. m.

(Received 10.20 p. m.)

Major General D. HUNTER, Monocacy Junction:

Colonel Blakely, Fourteenth Pennsylvania, just reports that cavalry, infantry, and artillery have crossed at the Shepherdstown for and at Dam No. 4; that at 6 o'clock he had skirmish with them at Antietam bridge, and would have to fall back to this place. Troops are arriving.

A. P. HOWE,

Brigadier-General.

Major-General HALLECK:

Above just received from General Howe.

D. HUNTER,

Major-General.

HARPER'S FERRY, August 4, 1864-9 a. m.

Colonel JAMES A. HARDIE, Inspector-General:

Have been here since Tuesday; get very little news of enemy. When I get through here intend to return to General Hunter if practicable.

WM. SINCLAIR,

Assistant Inspector-General.