TENNALLYTOWN, July 13, 1864.

(Received 9. 50 p. m.)

Major General C. C. AUGUR, U. S. Army:

Yes; now passing here.

M. D. HARDIN,

Brigadier-General.

FORT RENO, July 13, 1864.

(Received 10. 30 p. m.)

Major-General AUGUR, U. S. Army:

SIR: The following has just been received:

8. 30 P. M.

The rebels are still in Rockville. Shall I advance in the morning or not? Men and horses are quite tired. Horses have (many of them) had no water or forage to-day.

C. CROWNINSHIELD.

M. D. HARDIN,

Brigadier-General.

HDQRS. DEPT. OF WASHINGTON, 22nd ARMY CORPS,
July 13, 1864. (Received 11. 30 p. m.)

Brigadier General M. D. HARDIN,

Tennallytown:

GENERAL: Send copy of Colonel Crowninshield's dispatch of 8. 30 p. m. to Major-General Wright, who will give the necessary instructions in the case. Inform General Wright where the Nineteenth Corps is encamped, and send him copy of my dispatch to General Gillmore, of 11 p. m.

Respectfully,

J. H. TAYLOR,

Chief of Staff and Assistant Adjutant-General.

HDQRS. SIXTH REGIMENT VETERAN RESERVE CORPS,
Six Miles out on Rockville Road, July 13, 1864.

Brigadier-General HARDIN:

GENERAL: I have just received your order, and have turned back with my regiment. The section of artillery moved forward at a trot toward Rockville on some one's order, whose, I do not know. The section is now two miles ahead. I have sent the order to the lieutenant commanding section of artillery by my adjutant.

Very respectfully, your obedient servant,

FRED. S. PALMER,

Lieutenant-Colonel, Commanding Sixth Regiment V. R. C.

FORT STEVENS, July 13, 1864.

(Received 9. 17 a. m.)

Colonel WILHELM,

Commanding Fort Ethan Allen:

The enemy disappeared from this front and are reported crossing the Potomac above. Send out at once the cavalry company at your