The late Duke de Morny.
--By the steamer Australasian we learn of the death of Charles Auguste Louis Joseph de Morny, Duke of the Empire of France, and reported half-brother of the Emperor, on Friday, the 10th of March, at Paris. The Duke was born on the 23d of October, 1811, and was, consequently, in his fifty-fourth year. He has been regarded as the illegitimate son of Queen Hortense and the Count de Flahaut.--He was adopted by the Count de Morny, of the Isle of France, who received 800,000 francs for thus extending his patronage and name. He was educated under the supervision of his supposed grandmother, E. Mme. de Flahaut; his proficiency in study was most remarkable, and his elegance of manner much noticed during his early life in society. He attended one of the military academies of Paris, and left it in 1832, after two years study as a sub-lieutenant.--He was stationed for some time at Fontainebleau, and served with some distinction in Algeria, where he was wounded. He was awarded the order of the Legion of Honor for saving the life of General Frezel. Queen Hortense, on her death, in 1837, bequeathed him 40,000 francs, and from that time he has been noted as a most successful speculator and financier. He made his first appearance as a speculator in the manufacture of beet-root sugar, and has since been connected with most French speculations. Previous to 1848, he was for eight years a member of the Chamber of Deputies, and in 1849 was elected to the Legislative Assembly. --The advent of Louis Napoleon brought him prominently before the public, and in the consummation of the coup d' etat of December, 1851, he was the right-hand man of his half-brother. He held the office of Minister of the Interior until 1852, and was subsequently chosen a member of the Corps de Legislatif, over which body he has presided since 1854. The peculiar amenities of his manners, and the grace of his presence and conversation, won for him friends everywhere. Sir Robert Peel said of him: "He is a spick, span man, of considerable a plomb, and one of the greatest speculators in the world."