HEADQUARTERS ARMY OF THE POTOMAC, July 2, 1863-12. 50 p. m.

Commanding Officer Cavalry Corps:

The major-general commanding directs me to say that he has not authorized the entire withdrawal of Buford's force from the direction of Emmitsburg, and did not so understand when he gave the permission to Buford to go to Westminster; that the patrols and pickets upon the Emmitsburg road must be kept on as long as our troops are in position. Very respectfully, &c.,
DANL. BUTTERFIELD,

Major-General, Chief of Staff.

HEADQUARTERS ARMY OF THE POTOMAC, July 2, 1863-12. 55 p. m.

Commanding Officer Cavalry Corps:

My note, written five minutes since, is a little confused, I find. The general expected, when Buford's force was sent to Westminster, that a force should be sent to replace it, picketing and patrolling the Emmitsburg road. He understood that all your force was up. Very respectfully, &c.,

DANL. BUTTERFIELD,

Major-General, Chief of Staff.

HEADQUARTERS CAVALRY CORPS, July 2, 1863-1. 45.

Brigadier-General GREGG,
Commanding Second Cavalry Division:

GENERAL: You will detail a regiment from your command to picket on the left of our line, lately occupied be General Buford, who has been withdrawn. You will then move your command to the north of Gettysburg, toward the Heidlersburg road, to ascertain if the enemy is in that position in force. You will make these dispositions as soon as practicable, and report the same. Very respectfully,

A. PLEASONTON,

Major-General, Commanding.

FREDERICK CITY, July 2, 1863.

Brigadier General S. WILLIAMS,

Assistant Adjutant-General:

GENERAL: Brigadier-General Elliott's command has left Harper's Ferry, and all the troops from there, excepting his force from Winchester, are here. This evening two regiments and battery marched to the Monocacy bridges. To-morrow I make my camp east of Frederick, and propose to hold, 1st, Urbana, outpost Hyattstown, and communications;