DICÆARCHUS, a scholar of Aristotle, who composed a great number of books, which were much esteemed. Cicero and his friend Pomponius Atticus valued him highly. He wrote a book to prove that men suffer more mischief from one another than from all evils besides; and the work which he composed concerning the republic of Lacedæmon was extremely honoured, and read every year be-
fore the youth in the assembly of the ephori. Geography was one of his principal studies, on which science there is a fragment of a treatise of his still extant, and preserved among the Veteris Geographiae Scriptores minores.