COLUMBUS, OHIO, July 6, 1864.

(Received 9. 20 a. m.)

Major General H. W. HALLECK,

Chief of Staff:

Major Reaney, General Cox's provost- marshal, reports that he has returned from a scout in Kentucky, and the citizens expect General Morgan to return soon. There are rumors to the same effect in the newspapers. I do not know what forces are threatening Covington and Newport, where they are, nor when to expect an attack. The fortifications are insufficiently garrisoned to be held even against a small force.

S. P. HEINTZELMAN,

Major- General.

GENERAL ORDERS,
HDQRS. FIRST DIV., 17TH ARMY CORPS, Numbers 22.
Jackson, Miss, July 6, 1864.

The troops of this command will move at 4 o'clock this day. The following is announced as the order of march: First, cavalry forces (except one company to bring up the rear of the column); second, Second Brigade, Fourth DIVISION; THIRD, two sections of Company L, Second Regiment, Illinois Light Artillery; fourth, two regiments Second Brigade, First DIVISION; fifth, transportation; sixth, one section Company L, Second Regiment Illinois Light Artillery; seventh, one regiment Second Brigade, First DIVISION. Ambulances and wagons containing ammunition will follow in rear of their respective regiments.

By order of Brigadier- General Dennis:

WM. W. KUHN,

Acting Assistant Adjutant- General.

GENERAL ORDERS,
HDQRS. FIRST DIV., 17TH ARMY CORPS, Numbers 23.
Camp Slocum, Miss., July 6, 1864.

The troops of this DIVISION will be in readiness to move to- morrow morning at 4 o'clock. Commanders of brigades, chiefs of cavalry and artillery, will report to these headquarters at 3. 30 a. m. precisely for orders. No bugle calls or beating drums will be allowed.

By order of Brigadier General E. S. Dennis:

WM. E. KUHN,

Acting Assistant Adjutant- General.

LEXINGTON, KY., July 7, 1864.

Colonel I. GARRARD,

Camp Burnside, Ky.:

Everything quiet at Cumberland Gap; to- day a small force was within four miles and captured some prisoners. Morgan is reported concentrating forces at Jonesville, Va., twenty- five miles from Cumberland Gap. Wait arrival of train at Burnside Point; it should reach there in less than three days; then resume march with train.

By order of Brevet Major- General Burbridge:

J. BATES DICKSON,

Captain and Assistant Adjutant- General.