San Francisco, Nov. 9. Arríved yesterday, stoamers St. Louis and Moses Taylor, from Panama bringing dates from Mexico via Acapulco of tho 21st of Oetober. The French were preparing for an expedí tion towards Queratcro. Gen. Forey loft Mexico for Vera Cruz on Jiis way to Franoe, on the 4th of October, liaving given over hia cominand to Gen. Baziero, who appears to be muou moro popular. An agent of the rebel government arrived at Mexico on the 9th via Brownsville, with instructions, it was supposcd, to mako a treaty betweou the Regency of Mexico and the rebels. It is said that Juárez haa rooranized the army of the liberal party, and is marohiug towards quarters to meet the French. A conflict is expected shortly. Minister Corwin has so far taken no activo part in Mexican troubles.