[Ληναικ]α[ὶ ποη]τῶν Πο[.....] Ι Φίλι[ππος Γ?]ΙΙ — [κωμικ]ῶν Με[ταγένη]ς ΙΙ Χόρη[γος —] Διο[νύσι]ος Ι [Ξ]ενόφιλος Ι Θεό[πομπ]ος ΙΙ Ἀναξα[νδρί]δης ΙΙΙ Κλέ[αρχ]ος [Ι.] [Τ]ηλεκλείδης Γ Πολ[ύζηλο]ς ΙΙΙΙ Φιλέτα[ιρο]ς ΙΙ Ἀθηνοκλῆς[ 5 Ἀριστομένης ΙΙ Νικοφ[ῶν —] Εὔβουλος ΓΙ Πυρ[ήν?] Ι 5 Κρατῖνος ΙΙΙ Ἀπο[λλοφάνη]ς Ι Ἔφιππος Ι[.?] Ἀλκήνωρ Ι Φερεκράτης ΙΙ Ἀμ[ειψίας —] [Ἀ]ντιφάν[ης] ΓΙΙΙ Τιμοκλῆς Ι Ἕρμιππος ΙΙΙΙ Ν[ικοχάρης —] [Μ]νησίμ[αχος] Ι Προκλείδης Ι Φρύνιχος ΙΙ Ξενο[φ]ῶν Ι Ναυ[σικράτ]ης ΙΙΙ Μ[έν]ανδρος Ι[— 10 Μυρτίλος Ι Φιλύλλιος Ι Εὐφάνη[ς —] Φ[ι]λήμων ΙΙΙ 10 [Εὔ]πολις ΙΙΙ Φιλόνικος Ι Ἄλεξις ΙΙ [—] Ἀπολλόδωρο[ς—] — [.......]ς Ι [Ἀρ]ιστ[οφῶν —] Δίφιλος ΙΙΙ — [Κηφισόδοτος Ι — Φιλιππίδης ΙΙ[— — — — Νικόστρατος [— 15 — — — Καλλιάδης Ι 15 — — — Ἀμεινίας Ι — — [Ἀσκληπιό?δω]ρος Ι Ι Ι Ι Besides some other inscriptions of lesser importance than those already discussed, Aristotle’s _Didascaliae_ was the source, directly or indirectly, also of several treatises, collections of classified data, catalogues, etc., dealing with various phases of Greek theatrical history and compiled by such men as Dicaearchus, Callimachus, and Aristophanes of Byzantium. I shall close with an account of one of these. I refer to the system of numbering which was applied to ancient plays. Thus, according to the ancient hypothesis (argument) to Sophocles’ _Antigone_ that drama “was counted the thirty-second” (λέλεκται δὲ τὸ δρᾶμα τοῦτο τριακοστὸν δεύτερον), and the first hypothesis to Aristophanes’ _Birds_ declares that that comedy “is the thirty-fifth” (ἔστι δὲ λέ). Before going farther it will be best to state that the latter numeral is inexplicable under any theory, but that Dindorf’s substitution of ιέ for λέ (“fifteen” for “thirty-five”) is a satisfactory and convincing emendation. With the publication of the Vatican hypothesis to Euripides’ _Alcestis_ in 1834 a third numeral came to light: τὸ δρᾶμα ἐποιήθη ι̅ζ̅ (“the drama was made seventeenth”). By far the most significant numeral, however, was published in the _Oxyrhynchus Papyri_ in 1904. Here at the top of the last column of a hypothesis to Cratinus’ lost _Dionysalexandros_ stood the following heading, doubtless repeated from the beginning of the hypothesis, which is now lost: Διονυσ[αλέξανδρος] “The Dionysalexandros η̅ Eighth κρατ[εινου] Of Cratinus”