From Mexico

The steamer Tennessee lias arrived with Vera Cruz dates to the 21st. The Maceilonia was at Sacraficios. Tho principal road to the Capítol BWftrmed with bands of robbers. Captain Oldharn, of the British stcamcr Valorous, was severelj wounded by robbers, while rcturning froin the City of Mexico. The Constitutional Government was making slow progress. Gov. Zamora is dead. Eumors had reached the Capítol, that a party of filibustera had iuvaded Lower California. It was also reported that a movement was progressing, for the separation of a number of the border States, and their erection into the Sierra Nevada JRepublic. M. Saligny, the French Minister, had presented his credentials, and was formally received.