The original treatises of the collection form its smallest part, and none of them is very early; indeed, of the earlier formal Rhetoric, as has been said, Aristotle is almost our only representative, though, luckily, he is worth all the others. If the περὶ ἑρμηνείας, or _De Interpretatione_, which goes by the name of Demetrius, had been rightly referred (in accordance with nearly all the MSS., as far as the name goes, and with the assent of so distinguished and acute a scholar as Petrus Victorius in regard to the person) to Demetrius of Phalerus,—the Athenian statesman and orator of the latter half of the fourth century B.C., the antagonist of his namesake the City-Taker and lover of Lamia, the scholar of Theophrastus, the schoolfellow of Menander, the probable consulting founder of the Alexandrian library—its interest of authorship would be only inferior to that of the work of the greatest writers. But the allusions and citations in the treatise itself (unless we suppose it to have been edited and interpolated to an extent such as to make it useless as a document) are such as to put this attribution out of the question. And while Dionysius and others have been put forward as possible claimants, there seems no reason to doubt that the most probable author is to be found in some Alexandrian grammarian or sophist of the name of Demetrius (perhaps the one actually named by Diogenes Laertius as having written rhetorical treatises), who may have lived under the Antonines. There is, therefore, no reason for disturbing Walz’s actual order.[128] Footnote 128: He does not give, but Spengel does, the _Rhetoric to Alexander_ (v. _sup._, p. 17 _note_), attributed to Anaximenes; and the same is the case with a short fragment, Περὶ ἐρωτήσεως καὶ ἀποκρίσεως, which is an excursus on Arist., _Rhet._, iii. 18. It is purely _barristerial_.