Cin. Commercial. ! respectGen. Bragg Marching on Lou isville. the Ur The news from Louisville is that General l^e P* Bragg is marching upon that city with the main body of his array. Hid only chance of success is in taking the city by storm before Buell can reach him. Gen. Xelsou is in command at Louisville, where a large army is coliected. It is doubtless his intention to make a desperate fight, and he yesterday warned the woman and children to prepare to leave the city without delay.This looks as if he inteuded if necessary to fight from hoo?e to honse. The enterprise of Bragg seems to be a desperate ooc, aud if repulsed in bis proposed assault npon the city we do not see how he is to extricate his array. It is to bj expected that ha will move with the utmost celerity, and it is likely that he made the attack on yesterday (Wednesday.)Cincinnati Commercial.