CHARLESTON, S. C., July 13, 1864.

Lieutenant Colonel JOHN. HARRIS,

Fourth Ga. Cav., John's Island Ferry, via Rantowles:

Proceed at once to Atlanta and report to General Joseph E. Johnston.

CHAS. S. STRINGFELLOW,

Assistant Adjutant-General.

RICHMOND, VA., July 13, 1864.

Major General HOWELL COBB,

Macon, Ga.;

Order General H. R. Jackson, with his command, to report to General Samuel Jones for assignment to General McLaws for duty in Georgia.

S. COOPER,

Adjutant and Inspector General.

CHARLESTON, S. C., July 14, 1864.

Brigadier General W. B. TALIAFERRO,

Royall's:

Colonel Rhett, with the two companies of the First South Carolina Artillery and Captain Le Gardeur's battery, will proceed to Sullivan's Island this evening, via Hatch's Wharf.

By order:

H. W. FEILDEN,

Assistant Adjutant-General.

HEADQUARTERS FIRST MILITARY DISTRICT, Charleston, S. C., July 16, 1864.

General S. COOPER,
Adjutant and Inspector General, Richmond, Va.:

GENERAL; I have the honor respectfully to request that Captain John C. Mitchel, First South Carolina Artillery (enlisted), be appointed a major of artillery in the Provisional Army; also, that Captain John Johnson, Engineers, be appointed a major of engineers in the same service.

Captain Mitchel has served with energy and fidelity since the war commenced. He is now and has been for some months commander of Fort Sumter, for which position his experience and qualifications peculiarly fit him, he having been on duty in that fort for most of the time since its capture, in April, 1861. He was second in command for most of the term of service of Lieutenant-Colonel (now Brigadier-General) Elliott as its commanding officer, and throughout his service has so conducted himself as to command the respect and commendation of every officer with whom he has been associated. It is proper that this important position should be commanded by a field officer, and i think that Captain Mitchel, by months of ceaseless vigilance and activity therein, as well as previous service, has fairly earned his promotion.