Note 48 — Chapter VI · PLATONIC CANON, AS RECOGNISED BY THRASYLLUS.

Diog. L. iii. 65, 66. Ἐπεὶ δὲ καὶ σημεῖά τινα τοῖς βιβλίοις αὐτοῦ παρατίθεται, φέρε καὶ περὶ τούτων τι εἴπωμεν, &c. He then proceeds to enumerate the σημεῖα.

It is important to note that Diogenes cites this statement (respecting the peculiar critical marks appended to manuscripts of the Platonic works) from Antigonus of Karystus in his Life of Zeno the Stoic. Now the date of Antigonus is placed by Mr. Fynes Clinton in B.C. 225, before the death of Ptolemy III. Euergetes (see Fasti Hellen. B.C. 225, also Appendix, 12, 80). Antigonus must thus have been contemporary both with Kallimachus and with Aristophanes of Byzantium: he notices the marked manuscripts of Plato as something newly edited — νεωστὶ ἐκδοθέντα): and we may thus see that the work of critical marking must have been performed either by Kallimachus and Aristophanes themselves (one or both) or by some of their contemporaries. Among the titles of the lost treatises of Kallimachus, one is — about the γλῶσσαι or peculiar phrases of Demokritus. It is therefore noway improbable that Kallimachus should have bestowed attention upon the peculiarities of the Platonic text, and the inaccuracies of manuscripts. The library had probably acquired several different manuscripts of the Platonic compositions, as it had of the Iliad and Odyssey, and of the Attic tragedies.