MONOCACY, July 7, 1864. (Received 6. 50 p. m .)

Lieutenant-Colonel LAWRENCE:

I think my troops are retiring from Frederick. If so, they have been directed to fall back upon the Baltimore pike to the crossing of the Monocacy, and to hold the crossing at all hazards.

LEW. WALLACE,

Major-General, Commanding.

JULY 7, 1864.

Major-General WALLACE,

Monocacy Junction, Baltimore and Ohio Railroad:

I am pushing forward the veterans with all possible dispatch, also the ammunition; will send a supply for all arms.

SAML. B. LAWRENCE,

Assistant Adjutant-General.

MONOCACY, July 7, 1864.

Lieutenant-General LAWRENCE:

Think I have had the best little battle of the war. Our men did not retreat, but held their own. The enemy were repulsed three times. The force engaged on our side were Third Maryland Potomac Home Brigade, 250 men; Eighth Illinois Cavalry, Lieutenant-Colonel Clendenin commanding; three guns Alexander's battery, under his command, and several detachments, including the 100-days' men, Captain Leib commanding. The fight began at 4 p. m. and closed at 8 o'clock, Colonel Gilpin, of the Third Maryland Potomac Home Brigade, in direct command. From best information the rebels were commanded by Bradley Johnson. Losses unknown. This is not official.

LEW. WALLACE.

HDQRS. MIDDLE DEPARTMENT, EIGHT ARMY CORPS, Baltimore, Md., June 1864-9. 20 p. m.

Major-General WALLACE,
Monocacy Junction, Baltimore and Ohio Railroad:

Your dispatch received;very cheering. Shall I furnish the journals with any portion of your report? There are all sorts of rumors which will read worse than the truth. Do you communicate direct with General Halleck, or wish me to transmit your dispatches? I have not sent him yet.

SAML. B. LAWRENCE,

Assistant Adjutant-General.

WASHINGTON, D. C., July 7, 1864-10. 30 p. m.

Brigadier-General RICKETTS,

Baltimore:

As fast as your division arrives it will move by Baltimore and Ohio Railroad to Point of Rocks, or mouth of Monocacy, with five