From Cairo — movements of Confederate troops.
Cairo, July 31.
--Five steamers, with a large force, arrived at New Madrid on yesterday.--Fifteen thousand Confederate troops are reported to be at that point.
Louisville, August 1.
--Cairo scouts report that Jeff. Thompson is about 30 miles South of Bird's Point with five thousand Confederate troops.
Cairo, August 1.
--Scouts report Southerners at New Madrid, and that they are well armed and drilled, and have two regiments of Cavalry, with five batteries.
General Pillow commands, and has issued his Proclamation, promising to drive the Federal invaders from Missouri.