SOUTH AMERICA.

There are now about 900 persons employed on the Panama Railroad, and the track to Gatun, a distance of twenty-six miles, will be ready for the locomotive by the 1st of July next. There was much excitement on the Isthmus towards the close of March, caused by a report that the specie train, carrying $1,000,000 in silver for the British steamer, had been attacked by robbers. It happened, however, that only a single mule-load was taken, which was afterwards abandoned by the robbers and recovered. Three of the boatmen arrested for the murder of passengers on the Chagres River have been found guilty and sentenced to be shot. A large fire broke out on the island of Taboga, in the bay of Panama, destroying fifty huts, and property to the amount of $50,000. Several parties have returned to Panama from the gold region of Choco, in New Grenada. They found the rivers of the region abounding in rich gold-washings, but were forced to abandon the enterprise from want of supplies.

In Chili, the 12th of February, the anniversary of Chilian independence, was celebrated with imposing ceremonies. The municipality of Valparaiso are making exertions to establish a general system of primary instruction for the children of the city. The survey of the railroad to Santiago has been carried about fifty miles, to which distance a favorable line has been obtained. The island of Chilöe, in the southern part of the Republic, was suffering from a protracted drought. The election for President was to take place in the month of March.

In Buenos Ayres, the opening of the Legislature and the Annual Message of the President have been postponed by mutual agreement. The financial affairs of the republic are in an exceedingly prosperous condition, the available resources on hand for the present year amounting to more than $36,000,000. By order of the government, the civil and military officers were directed to wear the customary mourning on the 24th of January, "as a token of grief for the death and respect for the memory of the illustrious General Zachary Taylor, late President of the United States of America."

A terrible accident occurred in the harbor of Rio Janeiro on the 8th of February. The French schooner Eliza, while at anchor near the fort, with a large quantity of gunpowder on board, blew up with a tremendous explosion, and soon after sank. She had 240 passengers, only a few of whom were on board at the time. Ten were killed and twenty wounded.