SPECIAL ORDERS,
HEADQUARTERS OF THE ARMY, ADJUTANT-GENERAL'S OFFICE, Numbers 221. Washington, September 4, 1862.

1. Brigadier General Henry S. Briggs, U. S. Volunteers, will immediately report in person to Brigadier General S. Casey for orders.

* * * *

By command of Major-General Halleck:

E. D. TOWNSEND,
Assistant Adjutant-General.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC,
September 4, 1862.

Major General A. E. BURNSIDE,

Aquia Creek:

General McClellan desires that you take steps to have the engines brought away from Aquia if it is possible to get them away. Do not remain there yourself to see them off.

A. V. COLBURN,

Assistant Adjutant-General.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC,
Washington, September 4, 1862-5.55 p. M.

General F. SIGEL,

Commanding Army Corps, Fort Ethan Allen:

General Morell, at Hall's Hill, 4.30 p. M., reports that the enemy has commenced an attack upon his pickets with artillery, infantry, and cavalry. Your pickets shouldbe on the alert, and your command at once draw into the new position indicated to you this morning.

R. B. MARCY,

Chief of Staff.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC,
September 4, 1862-5.15 p. M.

General COX, Upton's Hill:

Have the six heavy guns that I ordered to Upton's Hill arrived there? If so, have they men to mount them? If not, have you men that can man then without interfering with your light artillery?*

GEO. B. McCLELLAN,

Major-General.

[19.]

HEADQUARTERS ARMY OF THE POTOMAC,
September 4, 1862.

Brigadier-General COX, Upton's Hill:

On what roads and at what distance is the rebel infantry force reported by General Pleasonton? I do not care to engaged them in front of your position. I think it is a feint to cover a crossing above. Please answer at once.*

GEO. B. McCLELLAN,

Major-General.

[19.]

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*See 5.40 p. M., VOL. XIX, Part II, p. 176.

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50 R R-VOL LI, PT I