Note 153 — IV.
Reading edition
Ibid. p. 120, b. 36-p. 121, a. 9. καθόλου δ’ εἰπεῖν ὑπὸ τὴν αὐτὴν διαίρεσιν δεῖ τὸ γένος τῷ εἴδει εἶναι.
Aristotle here enunciates this as universally true, whereas if we turn to Categor. p. 11, a. 24, seq. we shall find him declaring it not to be universally true. Compare also Topic. IV. iv. p. 124, b. 15.