a Grecian philosopher of Samos, one of the first that maintained that the earth turns upon its own centre. We are not sure of the age in which he lived; and have none of his works but a Treatise of the greatness and diligence of the Sun and Moon, translated into Latin by Frederic Commandine, and published with Pappus's explanations in 1572.

a celebrated grammarian, much esteemed by Ptolemy Philometor, who committed to him the education of his son. He applied himself chiefly to criticism, and made a revival of Homer's poems, but in too magisterial a way; for such verses as he did not like he treated as spurious. He commented on other poets, Cicero and Horace made use of his name to express a very rigid critic.