Note 13 — Chapter II · ARISTOTELIAN CANON.

Brandis and Zeller, moreover, remark, that among the allusions made by Aristotle in the works which we possess to other works of his own, the majority relate to other works actually extant, and very few to any of the lost works enumerated in the Catalogue (Brand. Aristoteles, pp. 97-101; Zeller, Phil. der Griech. ii. 2, p. 79, ed. 2nd). This however is not always the case: we find (e.g.) in Aristotle’s notice of the Pythagorean tenets (Metaphys. A. p. 986, a. 12) the remark, διώρισται δὲ περὶ τούτων ἐν ἑτέροις ἡμῖν ἀκριβέστερον; where he probably means to indicate his special treatises, Περὶ τῶν Πυθαγορείων and Πρὸς τοὺς Πυθαγορείους, enumerated by Diog. L. v. 25, and mentioned by Alexander, Porphyry, and Simplikius. See Alexander, Schol. ad Metaphys. p. 542, b. 5, 560, b. 25, Br.; and the note of Schwegler on Metaphys. i. 5, p. 47.