July 28.—Secretary Stanton ordered the formation of a Bureau of Cavalry to be attached to the War Department of the United States.— Colonel Rowett, of the Seventh Illinois infantry, in command of a force from Corinth, Miss., fell upon a party of rebels, belonging to Roddy’s force, near Lexington, Tenn., and in a skirmish which followed, captured Colonel Campbell and Captain Clark, together with another captain, two lieutenants, and twenty-five men.
—The steamboat Imperial, the first boat from New-Orleans since the opening of the Mississippi River, arrived at St Louis, Mo., and was welcomed with great enthusiasm.—The National forces under Colonel Sanders, at Richmond, Ky., were attacked by a large body of rebels, and driven back to a point within five miles of Lexington, the rebels closely following. Lexington was placed under martial law, and all able-bodied citizens between the ages of eighteen and forty-five were ordered to report for duty.—At Richmond, Va., the demolition of the street railroads was completed, the track having been torn up and the iron sent to the mill to be rolled into mail for a gunboat.
