JAHN, OTTO (1813-1869), German archaeologist, philolo gist, and writer on art and music, was born at Kiel on June 16, 1813. He was professor of archaeology at Greifswald, and then at Leipzig, but was dismissed (1851) from the Leipzig chair for political reasons. He was then director of the art museum at Bonn, and in 1867 was appointed to a chair in Berlin. He died
at Gottingen, on Sept. 9, 1869. Jahn wrote many books on Greek art, and prepared editions of various classical authors. Of his works on musical history the most important is his Biographie Mozarts (3rd ed. by H. Disters, 1889-1891; Eng. trans. by P. D. Townsend, 1891).