Our last topic is to be considered. We do not advocate the establishment of costly works by Government, or the acquisition of a colony. The laws of commerce will provide the first, if only a proper protection is given to enterprise. Let us obtain but a single port under the safeguard of the American flag, and it will become a depot as flourishing as Singapore. Private enterprise will speedily establish dockyards and machine shops; for not only will there be an immense legitimate commerce with the Malagash, but the port will be the great centre for repairing and refitting our merchant vessels and whalers. The one thing needful, we repeat, is prompt action by our Government, with the certainty that the opportunity now presented will not return. NOTE.--The latest advices from Madagascar, received _via_ Mauritius, throw a little light upon the revolution which resulted in the death of Radama II. It seems probable that the late king had lost the esteem of his people by his partiality toward his favorites, by the concessions made to foreigners, especially to M. Lambert, and by his vacillating course in religious matters. His private life was such as to render it highly improbable that he had become a Christian; yet Mr. Ellis, the English missionary, exercised a great control over him. The late queen was buried at Ambohimanga, a little village where there was a temple devoted to the chief idol. It seems that her son had promised to keep this spot sacred from the intrusion of the missionaries. Mr. Ellis most imprudently determined to preach there, and though driven away once, obtained troops from the king, and succeeded in a second attempt. As the nobles and the population were almost unanimously in favor of idolatry, this course gave cause for great dissatisfaction. The more devout, assembling near the capital, held daily meetings, and a disease called ramanenra--a sort of nervous affection, such as has too often accompanied revivals in Christian countries--appeared among them. The nobles confederated under the lead of the commander-in-chief, Rainivoninahitriniony, and remained aloof from supporting the king. Finally, the king published a mysterious law, allowing individuals or tribes to fight in the presence of witnesses--a law supposed by the one party to encourage assassination, and by the other to tend to the extirpation of the Christians. The prime minister, in a letter written in English, explains the last scene thus: On the 8th May, the chief officers requested the repeal of these laws; the king refused; and the tenth day, a public tumult resulted in the slaughter of the Menamaso, or native favorites of the king. On the 12th May, the leaders, afraid to pause, strangled the king, and proclaimed Rabodo queen, under the name of Rahoserina.