...Dorn could attack him at pleasure, at any point of his long line. To be the better prepared, on the 23d of September he took post himself at Jackson, Tennessee, with a small reserve force, and gave Rosecrans command of Corinth, with his three divisions and some detachments, aggregating about twenty thousand men. He posted General Ord with his own and Hurlbut's divisions at Bolivar, with outposts toward G...