HEADQUARTERS THIRD ARMY CORPS,
Warrenton Springs, August 4, 1862.

Major-General POPE, Little Washington:

I learn from General King that General burnside's advance has arrived at Aquia and General Burnside himself is at Fredericksburg. I have ordered King to withdraw the troops of his division from Aquia, so that General Burnside's troops and mine may not be intermingled. I do not know that I have any cause, but still I have an apprehension that by some of the changes of the service King's division may by lost to me. I beg, therefore, to ask it may be borne in mind that this was formerly my own division, which I have formed, instructed, and disciplined, and that I should feel I received a heavy blow were I to lose it. The remaining transportation for Carroll's brigade has arrived.

IRVIN MCDOWELL,

Major-General, Commanding.

HEADQUARTERS ARMY OF VIRGINIA,
Near Sperryville, Va., August 4, 1862.

Major-General McDOWELL:

You will not lose your division. It will join you as soon as you take up your new position.

JNO. POPE,

Major-General.

HEADQUARTERS ARMY OF VIRGINIA,
Near Sperryville, Va., August 4, 1862.

Major-General McDOWELL:

Please inform me when you shall commence your march.

JNO. POPE,

Major-General, Commanding.

HEADQUARTERS THIRD CORPS,
Sulphur Springs, August 4, 1862.

Major-General POPE, near Washington, Va.:

In reply to your telegram, asking me when I shall commence my march, I beg to say that I sent you a dispatch between 8 and 9 o'clock, giving you the information required, together with other items.

The march begins to-morrow at 5 a. m. Your order did not reach me in time to commence it at an earlier hour.

IRVIN McDOWELL,

Major-General.

WASHINGTON, D. C., August 4, 1862.

Major-General POPE, Warrenton, Va.:

I have just learned that General Burnside has no transportation, artillery, or cavalry. You will therefore order only General King's infantry to join you, leaving the cavalry and artillery with General Burnside until I can send him others.

H. W. HALLECK,

General-in-Chief.