FORT STEVENS, July 13, 1864-12 m.

(Received 1. 15 p. m.)

General AUGUR:

Captain Taylor, of cavalry detachment, reports from Leesborough that the enemy moved to the left to Rockville; 200 wagons and 2,000 head of cattle. A general told the citizens they were going to muddy Branch and Leesburg.

A. MCD. MCCOOK,

Major-General, Commanding.

HDQRS. DEPT. OF WASHINGTON, 22nd ARMY CORPS,
July 13, 1864.

Major-General MCCOOK,

Fort Stevens:

Company A, Fourth Artillery, has been equipped as a light battery and mounted.

C. C. AUGUR,

Major-General, U. S. Volunteers.

FORT STEVENS, July 13, 1864.

(Received 3 p. m.)

Major General C. C. AUGUR:

Please send Light Company A, Fourth Artillery, to Fort Slocum, as the two companies heavy have been sent thence with General Wright.

A. MCD. MCCOOK,

Major-General.

FORT STEVENS, July 13, 1864.

(Received 4. 20 p. m.)

Lieutenant-Colonel TAYLOR,

Chief of Staff:

I have sent to you a man just arrested and brought within our lines. He reports that [he] saw General Hunter last Friday at Cumberland.

A. MCD. MCCOOK,

Major-General.

FORT RENO, July 13, 1864.

(Received 7. 20 p. m.)

General MCCOOK, and General AUGUR:

The squadron of cavalry which was at Sumner last night is now with Colonel Lowell. The colonel has just been here, on road to General Wright's headquarters. He reports his loss at about 30, but the straggling from Provisional Battalion makes the loss appear heavy. He thinks he has 750 to 800 men for duty. His loss was caused by Lieutenant-Colonel [Crowninshield] charging McCausland's brigade, just out of Rockville, with four companies of Second