HEADQUARTERS ARMY OF THE POTOMAC.

Via Hagerstown, Md., September 17, 1862. (Received 10 p. M.)

Brigadier-General RIPLEY,
Chief of Ordnance:

If you can possibly do it, force some 20-pounder Parrott ammunition through to-night, via Hagerstown and Chambersburg, to us, near Sharpsburg, Md.

GEO. B. McCLELLAN,

Major-General, Commanding.

[Indorsement in Ordnance Office]

Attended to at once, September 17-11 p. M.

[19.]

WAR DEPARTMENT,

Washington City, D. C., September 17, 1862

General McCLELLAN,

Near Hagerstown, Md.:

Telegram received. A special train will soon leave with the 20-pounder ammunition asked for. It will go in charge of an ordnance officer, and will be in Hagerstown to-morrow morning. Other ammunition will follow to Frederick and Hagerstown as soon as possible.

JAS. W. RIPLEY,

Brigadier-General and Chief of Ordnance.

[19.]

ORDNANCE OFFICE,

Washington, September 17, 1862

Colonel G. D. RAMSAY,

Washington Arsenal;

The following dispatch has just been received from General McClellan:

If you possibly can do it, force some 20-pounder Parrott ammunition through to-night, via Hagerstown and Chambersburg, to use near Sharpsburg, Md.

I have called on Colonel Rucker for the transportation. Get the ammunition ready and send it to the cars as soon as possible, and let an officer accompany it to tis destination.

JAS. W. RIPLEY,

Brigadier-General and Chief of Ordnance.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC.

September 17, 1862-9.10 a. M.

General SUMNER:

GENERAL: General McClellan desires you to be very careful how you advance, as he fears our right is suffering.

I am, general, respectfully, &c.,
GEO. D. RUGGLES.

Colonel, &c.

P. S. - General Mansfield is killed and Hooker wounded in the foot.

G. D. R.

[19.]