From CALIFORNIA we have news to Jan. 20th. It is not, however, of much importance. The country had been visited by a succession of very heavy rain storms, which had swollen the rivers, and in some cases cut off land communication between the towns. The location of the seat of government is still undecided. The Indian difficulties had been quelled for the present at least, but fears were entertained of new outbreaks. Fresh discoveries of gold were still made. One-third of the city of San Juan de Nicaragua, the most valuable portion, was destroyed by fire on the 4th of February. Later advices from NEW MEXICO represent the condition of the southern part of the country as most unhappy, in consequence of the violent and deadly hostility of the Apache Indians. They have been provoked by the Mexicans, and wreak their vengeance indiscriminately on the whole country. The provisions of the U. S. Government for keeping the Indians in check have been wholly unavailing, mainly from a wrong disposition of the troops. Steps are now taken to establish posts at various points throughout the Indian Country, as this has been found the most effectual means for preventing their depredations.—The silver mine discovered at Taos proves to be exceedingly rich; and the gold diggings on the Gila are as productive as ever. Mexico. We have intelligence from the City of Mexico to the 28th of December. Congress was again in session, but had not completed its organization. On the 20th, the Minister of Foreign Affairs, Señor Ramirez, received the representatives of Foreign Powers, and listened to extended remarks from them in favor of modifications in the Mexican tariff. The whole subject will probably soon be brought before Congress. The Indians in the State of Durango continue their ravages; the inefficiency of the measures taken against them by the government is loudly condemned. A riot, directed against the government, occurred on the 18th, in the State of Puebla, but it was speedily suppressed. In Tehuantepec a more serious movement had occurred under the lead of Ex-Governor Ortis; it was defeated after a contest of over four hours. At Cerro Gerdo also, on the 12th, there was a revolt of most of the forces of the Uragua Colony against their chiefs, but it was soon put down.—It is stated on authority that seems entitled to respect, that Santa Anna is planning a new revolutionary movement, and that he designs to make his descent at Acapulco on the Pacific coast. A house has been built there for him, and many of the utensils of a camp and munitions for a campaign are arriving there. It is said that all the officials of that department are friendly to him, and would readily co-operate in his designs.—The Mexican government seems to be satisfied that the revolutionary movement in Northern Mexico has been completely quelled; but our advices from that quarter scarcely justify that confidence. At the latest date, Jan. 23d, Caravajal was on the Rio Grande,