October 30.
Major-General O. M. Mitchel, Commander of the Tenth army corps, department of the South, died on the evening of this day at Beaufort, South-Carolina.
A skirmish took place to-day between a detachment of cavalry under the command of Colonel Wyndham, First New Jersey cavalry, and a force of rebels stationed at Thoroughfare Gap, resulting in the retirement of the latter to the almost impassable hills in the vicinity.
The rebel schooner Velocity, laden with salt, leather, Manilla rope, etc., was captured by the United States steamer Kensington, in the vicinity of Sabine Pass, Texas.
In obedience to orders from the War Department, Major-General Buell transferred the command of the department and the army of the Ohio to Major-General W. S. Rosecrans.
