HAGERSTOWN, MD., July 27, 1864.

Major-General COUCH,

Chambersburg, Pa.:

Word has been sent me from Martinsburg that Early, Breckinridge, Ransom & Co., were in the town this morning. It was reported in the rebel camp that a column had gone toward Cumberland. It was said that 20,000 rebels were about Martinsburg.

WM. W. AVERELL,

Brigadier-General.

CHAMBERSBURG, July 27, 1864.

Brigadier General W. W. AVERELL:

I have just received the following telegram from Mr. J. O. Carson, at Mercersburg. He says:

We have reliable information that the rebels are crossing at Back Creek and McCoy's Ferry; also below Cherry Run; also at Four Locks, some infantry and some cavalry. What their intended movements are I don't know.

Please give me any information that you may have from the places he mentions.

D. N. COUCH,

Major-General.

HAGERSTOWN, MD., July 27, 1864.

Major-General COUCH,

Chambersburg, Pa.:

Dispatch received. Enemy withdrew skirmish line from opposite side of the river at Williamsburg this morning, and my patrols have crossed. I do not believe the report from Cherry Run. Shall know shortly; will inform you.

WM. W. AVERELL,

Brigadier-General.

HAGERSTOWN, MD., July 27, 1864.

Major-General COUCH,

Chambersburg, Pa.:

One of my aides at Clear Spring reports, at 11. 30 a. m., nothing but rumors. One of my squadrons was on the way to McCoy's Ferry, and others went toward Cherry Run. At 12. 30 Colonel Moore, Eighth Ohio, reports that about thirty rebels crossed at Back Creek this morning. About 400 were engaged in destroying Back Creek bridge. I am sure of complete information soon, when I will forward it.

WM. W. AVERELL,

Brigadier-General.

HAGERSTOWN, MD., July 27, 1864.

Major-General COUCH,

Chambersburg, Pa.:

My aide has returned from Fairview; reports that no rebels had crossed at Back Creek Ford up to 11 a. m. Enemy crossed some