Gen. RosKcliANS has fought a scvere battle, the end of which was not yet at our latest dates. His ariny was engaged with a greatly superior forcé on Saturday, Suuday, and Monday, and his loases wei e reported at about 4000. The rebol loss was heavy, including 1,300 prisoners. Tuesday moruing Gen. Rosecrans liad concentrated his forees at Chattanooga. awaiting reinforeements hourly expected from both Gens. Gkant and Burnsidb, where he would be able to resume the oífensive. Rosy is not easily whipped, and we have hope that he will oomo out all right. The Array of the Potomac is announeed in motion, and an easy victory ia predicted. We do not believe that Lee's army has been depleted as suppoaed, and look for hard fighting. Nothing materially new from Charleston. GiLL.MOHR is progressing with his works. Kumor says that large numbers of federal prisoncrs have been taken frotn líichmond to Charleston, with the hope to stave off a bombardment of the city. It inight be well to retalíate by letting boat loads of rebel prisoners accompany the Monitors up the harbor as an advance guard. The foreign news lias a better look. The rebel ranis are detained by order of the English Government, and France ha not yet recoguized the Coufederaey.