[151]. “Felting” (πίλησις) is the regular term for this process with all the early cosmologists, from whom Plato has taken it (Tim. 58 b 4; 76 c 3).
[152]. A more condensed form of the same doxographical tradition is given by Ps.-Plut. Strom. fr. 3 (R. P. 25).
[153]. Simplicius, Phys. p. 149, 32 (R. P. 26 b), says, according to the MSS., that Theophrastos spoke of rarefaction and condensation in the case of Anaximenes alone. We must either suppose with Zeller (p. 193, n. 2) that this means “alone among the oldest Ionians” or read πρῶτου for μόνου with Usener. The regular terms are πύκνωσις and ἀραίωσις or μάνωσις. Plutarch, de prim. frig. 947 f (R. P. 27), says that Anaximenes used the term τὸ χαλαρόν for the rarefied air.
[154]. For the meaning of ἀήρ in Homer, see Schmidt, Synonomik, § 35; and for its survival in Ionic prose, Hippokrates, Περὶ ἀέρων, ὑδάτων, τόπων, 15, ἀήρ τε πολὺς κατέχει τὴν χώρην ἀπὸ τῶν ὑδάτων. Plato is still conscious of the old meaning of the word; for he makes Timaios say ἀέρος (γένη) τὸ μὲν εὐαγέστατον ἐπίκλην αἰθὴρ καλούμενος, ὁ δὲ θολερώτατος ὁμίχλη καὶ σκότος (Tim. 58 d). The view given in the text has been criticised by Tannery, “Une nouvelle hypothèse sur Anaximandre” (Arch. viii. pp. 443 sqq.), and I have slightly altered my expression of it to meet these criticisms. The point is of fundamental importance, as we shall see, for the interpretation of Pythagoreanism.
[155]. Plut. de prim. frig. 947 f (R. P. 27).
[156]. Aet. i. 3, 4 (R. P. 24).
[158]. The text is very corrupt here. I retain ἐκπεπυκνωμένος, because we are told above that winds are condensed air, and I adopt Zeller’s ἀραιῷ εἰσφέρηται (p. 246, [n. 554]).
[159]. The source of this is Poseidonios, who used Theophrastos. Dox. p. 231.
[160]. Theodoret (iv. 16) speaks of those who believe in a revolution like that of a millstone, as contrasted with one like that of a wheel. Diels (Dox. p. 46) refers these similes to Anaximenes and Anaximander respectively. They come, of course, from Aetios (Appendix, [§ 10]), though they are given neither by Stobaios nor in the Placita.