CHAMBERSBURG, July 29, 1864.

Brigadier-General AVERELL:

A courier has just arrived at Greencastle for an engine for you. He has no written order, consequently the engine cannot be sent. I have ordered the man under arrest. Please inform me by the bearer what the movements of the enemy are as far as you know.

D. N. COUCH,

Major-General.

JULY 29, 1864.

Major-General COUCH,

Chambersburg, Pa.:

Major Foley, Fourteenth Pennsylvania Cavalry, reports from Clear Spring that enemy are crossing in considerable force at McCoy's Ferry with artillery.

WM. W. AVERELL,

Brigadier-General.

JULY 29, 1864.

Major-General COUCH,

Chambersburg:

Captain Sanno's company was stampeded at Williamsport last night, but I have a report that the enemy were crossing at McCoy's Ferry at 6 a. m. to-day; this from a reliable source. Will report soon.

WM. W. AVERELL,

Brigadier-General.

JULY 29, 1864.

Major-General COUCH,

Chambersburg, Pa.:

I have not heard from Falling Waters this morning, except through two deserters, who confirm the report of last night with reference to the position of enemy's camps. They also say there was a rumor that Breckinridge intended North Mountain trip.

WM. W. AVERELL,

Brigadier-General.

JULY 29, 1864.

Major-General COUCH,

Chambersburg, Pa.:

Enemy reported crossing at Falling Waters; cavalry and dismounted men or infantry. Will report often.

WM. W. AVERELL,

Brigadier-General.

CHAMBERSBURG, July 29, 1864.

Brigadier General W. W. AVERELL:

Should the enemy turn your right flank and move into this State, will you pursue them, provided they threaten your front; or, if they move on your right flank in overpowering numbers, will you fall back into this Valley or move to he left? It will be of great