Bolivia is entirely tranquil, the health of Gen. Belzu having been completely restored since his attempted assassination, and the conspirators against him, Ballivian and Linares, having fled from the country. The partisans of Ballivian were totally routed in the southern provinces, where they attempted to make a stand, and their leader fled in disguise to Copiape, in Chili. Linares escaped into the Argentine Republic, and a requisition for his delivery was about to be issued.

In Chili, the extra session of Congress convened on the 16th of December. In his message calling the session, the President recommended to legislative attention, the subjects of reform in the customs and the coinage system, appropriations for the current year, the regulation of the standing army, and a revision of the taxes.

Early in December a destructive fire broke out in Valparaiso, which was finally quelled through the labors of the sailors from the English and French vessels of war lying in the harbor, after destroying $250,000 worth of property. On the 5th of the month, the volcano of Portillo, near Santiago, which had been quiet since 1845, suddenly broke out into violent eruption. The following day a very severe shock of an earthquake was felt, lasting twenty seconds, but fortunately doing little damage. Since then, however, a more violent earthquake has entirely destroyed the city of Conception, in the southern part of Chili.

Hon. Bailey Peyton, the American Minister, left Valparaiso on the 27th of December, in the U.S. Ship Vincennes, on a visit to Talcuhuana, the province of Conception and the island of Juan Fernandez. Henri Herz, the distinguished pianist, has been giving concerts in Santiago.

At the latest dates from Brazil, nothing of political importance had transpired. Accounts from Buenos Ayres to Dec. 12th, state that there was a prospect of an amicable settlement of the difficulties between that country and Brazil. There had been a conflict between the forces of Paraguay and those of Buenos Ayres, relative to the occupancy of some neutral lands, by the forces of the latter. The finances of the State were said to be in an encouraging condition.

AFRICA.

The Monitor, a paper published at Cape Town, South Africa, gives an account of a dreadful massacre committed by the noted Namagua chief, Yonker Afrikaner, on the neophytes of the German Missionary station at New-Barmen, in Damaraland, between South Africa and the Kingdom of Loango.

A curious piece of history has made its way to us from the island of Madagascar. Rainharo, the Prime Minister of the reigning Queen of the island, determined, in June last, to exterminate all the Christians in the province of Imirena. Accordingly, when they were all assembled one evening at their religious exercises, the various communities were suddenly arrested, to the number of eight thousand, and condemned to death. Eighteen of them had already been executed, when the rest escaped, and surrounding the palace of the young Prince, the heir to the throne of Madagascar, implored his protection. The Queen sent orders through the Prime Minister that they should be given up. The Prince refused, and in the dispute which followed, drew his sword and aimed a blow at the Minister's head, cutting off one of his ears. When the Queen heard of this, fearing a revolt in the province of Imirena, to sustain the Prince, she suffered the Christians to return to their homes and worship as usual. They have since been visited by the Prince, who declares his intention to protect them.

The Republic of Liberia was in a flourishing condition at the commencement of the year. Several explorations of the interior have been made, to the distance of two or three hundred miles from the coast. The parties brought back enthusiastic accounts of the richness and beauty of the country and the salubrity of the climate. President Roberts had sent his message to the Liberian Congress, giving a very favorable account of the condition and prospects of the country. The agricultural operations at Bassa Cove and Bexley have produced very satisfactory results. The slave trade is said to be almost destroyed in the neighborhood of Gallinas and Ambrize.