In the history of art, the original Greek authorities are Duris of Samos, Xenocrates of Sicyon, and Antigonus of Carystus. The anecdotic element has been ascribed to Duris (XXXIV:61); the notices of the successive developments of art and the list of workers in bronze and painters to Xenocrates; and a large amount of miscellaneous information to Antigonus. Both Xenocrates and Antigonus are named in connection with Parrhasius (XXXV:68), while Antigonus is named in the indexes of XXXIII–XXXIV as a writer on the art of embossing metal, or working it in ornamental relief or intaglio.