From Kentucky.
Reported capture of Lexington.
Jefferson City, Mo., Sept. 19.
--There is no definite intelligence from Lexington, Mo., to-day.
Dispatches were received here this afternoon stating that it was reported and believed that Lexington had been taken on Tuesday last.
Two gentlemen who arrived here late this evening, having left Booneville on the 7th instant, discredit the report.
Arrest of eminent Southerners.
Louisville, Sept. 19.
--The Hon. C. A. Morehead, Col. Reuben Durrett, and William Barr were arrested on yesterday, for corresponding with the enemy or rebels, and conveyed across the river.
They are at Browning's hotel, in Jeffersonville.
The war loan — the State Arms.
Frankfort, Ky., Sept. 19.
--Petitions were presented to-day by Messrs. Spalding, Edmunds, Hampton, Ray, Smith, Anderson, and Ireland, in favor of the loan tax. They were referred.
A bill was passed this morning giving to the Military Board the power to loan the State arms to Maj. Anderson.
Also, a bill increasing the power of the Board.
Excitement at Paducah.
Paducah, Sept. 17.
--Last night was one full of excitement at this point.
Twice the pickets all around the town fired off their guns, and the whole army were turned out and formed in order of battle.
The first alarm was caused by a sentinel shooting at a straggling soldier, and the guard by shooting into a market wagon.
Approach on Mayfield.
Paducah, Sept. 17.
--A fugitive arrested here last night from Mayfield, reports that 8,000 of Gen. Johnston's forces are at Mayfield, and 10,000 more approaching this place. 