HEADQUARTERS ARMY OF THE POTOMAC.

Camp near Rockville, September 10, 1862-10.30 a. M.

Major-General SUMNER,
Middleburg:

GENERAL: The general commanding directs that you suspend the movement ordered this morning till further orders, holding your command ready to move at short notice.

I am, general, very respectfully, your obedient servant,

R. B. MARCY,

Chief of Staff.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC.

Camp near Rockville, September 10, 1862-10.50 p. M.

Major General E. V. SUMNER.

Commanding Corps, &c.:

GENERAL: General McClellan is now absent at Brookeville, with General Burnside, but will return to-night. Your dispatch announcing the positions of the troops under your command is received and one of your orderlies is kept here to communicate as soon as possible any orders General McClellan may have for you on his return. Franklin arrived at Barnesville at 3 p. M. to-day, and has placed his corps in position at that point. There has been some rebel force at Sugar Loaf Mountain to-day and some skirmishing, and it is probable Franklin will attempt to drive them from the mountain in the morning.

Very respectfully, your obedient servant,
R. B. MARCY,

Chief of Staff.

[19.]

GENERAL ORDERS,
HEADQUARTERS SIXTH ARMY CORPS, Numbers 31.
September 10, 1862.

The following-named officers are announced as on the staff of the general commanding the corps; Lieutenant Colonel O. D. Greene, U. S. Volunteers, assistant adjutant-general and chief of staff; Lieutenant Colonel E. R. Platt, U. S. Volunteers, inspector-general; Lieutenant Colonel C. W. Tolles U. S. Volunteers, quartermaster; Lieutenant Colonel George Bell, U. S. Volunteers commissary of subsistence; Major E. S. Purdy, U. S. Volunteers, senior aide-de-camp; Capta. J. P. Baker, U. S. Volunteers, aide-de-camp; Captain Joseph C. Jackson, U. S. Volunteers, aide-de-camp. They will be obeyed and respected accordingly.

By command of Major-General Franklin:

O. D. GREENE.

Assistant Adjutant-General and Chief of Staff.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC.

Camp near Rockville, September 10, 1862-3.20 a. M.

Major-General FRANKLIN,

Darnestown:

Sumner is ordered to movea t once, with his and Banks' corps, to occupy Damascus and Clarksburg. You will move your corps forward immediately, to occupy Barnesville. General Couch is directed to move his command to Poolesville leaving sufficinet force along the road to watch the river till other troops from Washington can be obtained to