Philologist and archæologist, born at Kiel; after holding the post of lecturer at Kiel and Greifswald he, in 1847, was appointed to the chair of Archæology in Leipzig; becoming involved in the political troubles of 1848-49, he lost his professorial position, but subsequently held similar appointments at Bonn and Berlin; his voluminous writings, which cover the field of Greek and Roman art and literature, and include valuable contributions to the history of music, are of first-rate importance (1813-1869).