[469] Thucyd. ii. 29. He makes express mention of the nightingale in connection with the story, though not of the metamorphosis. See below, chap. xvi. p. 544, note 2. So also does Pausanias mention and reason upon it as a real incident: he founds upon it several moral reflections (i. 5, 4; x. 4, 5): the author of the Λόγος Ἐπιτάφιος, ascribed to Demosthenês, treats it in the same manner, as a fact ennobling the tribe Pandionis, of which Pandiôn was the eponymus. The same author, in touching upon Kekrops, the eponymus of the Kekropis tribe, cannot believe literally the story of his being half man and half serpent: he rationalizes it by saying that Kekrops was so called because in wisdom he was like a man, in strength like a serpent (Demosth. p. 1397, 1398, Reiske). Hesiod glances at the fable (Opp. Di. 566), ὀρθογόη Πανδιονὶς ὦρτο χελιδών; see also Ælian., V. H. xii. 20. The subject was handled by Sophoklês in his lost Têreus. After the death of Pandiôn, Erechtheus succeeded to the kingdom, and his brother, Butês, became priest of Poseidôn Erichthonius, a function which his descendants ever afterwards exercised, the Butadæ or Eteobutadæ. Erechtheus seems to appear in three characters in the fabulous history of Athens—as a god, Poseidôn Erechtheus[470]—as a hero, Erechtheus, son of the Earth—and now, as a king, son of Pandiôn: so much did the ideas of divine and human rule become confounded and blended together in the imagination of the Greeks in reviewing their early times. [470] Poseidôn is sometimes spoken of under the name of Erechtheus simply (Lycophrôn, 158). See Hesychius, v. Ἐρεχθεύς.