Note 153 — Chapter I · THE MILESIAN SCHOOL
Reading edition
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.