ANDREOS'SY, ANTOINE FRANcOIS, Count, was K on Mar. 6, 1761, at Castelnaudary, in Languedoc, and was the great-grandson of Francois A., who, along with Riquet, con. structed the canal of Languedoc in the 17th century. He entered the army as a lieutenant of artillery in 1781, joined the revolutionists, rose rapidly in military. zank, served under Bonaparte in Italy and Egypt, accompanied him on his return from Egypt to France, and took part in the revolution of the 18th Brumaire. He was ambassador at London during the peace of Amiens, and afterwards at Vienna, was governor of Vienna when it was in the hands of the French after the battle of Wagram, and was for some time ambassador at Constantinople, from which he was recalled by Louis XVIII. on the restoration. He was raised to the peerage by Napoleon after his return from Elba. After the battle of Waterloo, he advocated the recall of the Bourbons; but as deputy from the department of Aube, lie generally took part with the opposition. lie d.
Montauban on Sept. 10, 1826. He was a man of eminent scientific attainments, and dis ingnished himself as a member of the institute founded at Cairo. One of his first works was the Histoire Generale du Canal du Midi (Par., 1800; new edition, 2 vols., 1805), in which he asserted the right of his great-grandfather to honors long enjoyed by Riquet. Among the most valuable of his works are his Memoire stir 1 'Irruption du Pont-Euxin duns in .Hediterranee, his Memoirs sur is Systime des Eaux qui abreurent Constantinople, and his Constantinople et le Bosphore de Thrace pendant les Annees 1812-1814 et pendant l'Anai 1826 (Par., 1828), a work of importance in physical geography.