... at Louisville at 10 o'clock last night, reached here this morning, saying it was generally believed the rebel Generals, Bragg and Cheatham, were both killed in the engagement of Wednesday last, near Bardstown ; that our loss in killed, wounded and missing, was between 1,500 and 2,000, while that of the enemy was much larger, and that we held the field that night, and skirmished with them in the retreat nex...