be understood by consulting the map of Frederick County. He directs that you will hold Frederick, camping your troops in its immediate vicinity; also the Monocacy bridges, both rail and turnpike. You will also guard the Baltimore and Ohio Railroad from Frederick to a junction with General Schenck, to whom you will communicate your instructions. In the event of our being compelled to withdraw and retire before the enemy, you will be in readiness to throw your command by rail, or march, as may be most practicable and speedy, into the Defenses of Washington. He desires that for the present you will hold the line of communication to Frederick. Keep it open, and send up from Frederick all stragglers, keeping the town clear and in good order. Very respectfully, &c.,

S. WILLIAMS,

Assistant Adjutant-General.

HEADQUARTERS FIRST DIVISION, FIRST ARMY CORPS, July 1, 1863-12. 10 p. m.

General DOUBLEDAY, or General HOWARD:

I think the enemy are retiring, and that we should advance promptly upon them. I am not sure that they are not moving round on our right flank, though I do not see any indication of it.

JAS. S. WADSWORTH,
Brigadier-General.

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HEADQUARTERS ELEVENTH CORPS, July 1, 1863-1 p. m.

Major-General SLOCUM,
Commanding Twelfth Corps:

The general commanding directs me to inform you that Ewell's corps is advancing from York. The left wing of the Army of the Potomac is engaged with A. P. Hill's corps.

T. A. MEYSENBURG,

Chief of Staff. (Same to General Sickles.)

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HEADQUARTERS THIRD CORPS, Emmitsburg, July 1, 1863-3. 15 p. m.

Major-General HOWARD,
Commanding:

GENERAL: I have at this moment received a communication from an officer of your staff, and also two written communications, dated at 1 and 1. 30 p. m. I shall move to Gettysburg immediately. Very respectfully,

D. E. SICKLES,

Major- General, Commanding.