Lexington, Ky., was evacuated by the rebels under the command of E. Kirby Smith, they retreating toward Cumberland Gap.--The monitor Nahant was successfully launched from Harrison Loring's yard, in South-Boston, Mass., at eleven A. M. to-day.--The Twelfth regiment of Vermont volunteers left Brattleboro for Washington City.
A skirmish took place in the vicinity of Sibley's Landing, Mo., between a detachment of the Fifth Missouri cavalry and the combined rebel forces of Colonels Quantrel and Childs, resulting in a rout of the latter with considerable loss. Among the prisoners taken was the rebel Colonel Childs.--Missouri Democrat, October 9.
General McClellan this day issued an order to the army of the Potomac, calling attention to the President's proclamation of Emancipation, and pointing out the fact that the execution of the Federal laws is confided to the civil authorities, and that armed forces are raised and maintained simply to sustain those authorities.
A fight occurred this day at La Vergne, Tenn., between a Union force of two thousand five hundred men, under the command of General Palmer, and a rebel force under Gen. Anderson, resulting in the complete rout of the rebels, and the capture of a large number of prisoners, camp equipage, munitions, and provisons.--(Doc. 215.)
The advance of the National forces under General George W. Morgan, reached Frankfort, Ky.--The bark Wave and brig Dunkirk were captured and destroyed by the rebel privateer Alabama, in latitude 40° 23′, longitude 54° 25′.
The rebel steamer General Rusk, or Blanche, which had run the blockade with a cargo of cotton, was this day driven ashore near Havana Light, by the United States steamer Montgomery, when she was burned by her crew.