(), a physician in the latter half of the
second century after Christ, a friend and contemporary, and probably also a pupil of Galen,
with whom he was acquainted while they were both at Rome. (Galen. de Meth.
Med. 8.2. vol. x. p. 535, 536.) It was at his request that Galen was induced to resume
his work " De Method Medendi," which he had begun to write for the use of Hieron, and which he
had laid aside after his death. (Ibid. 7.1. p. 456.) It was also at his
request that Galen wrote his work "De Ordine Librorum Suorum." (vol. xiv. p. 49.)