  The Meteorology commentary begins without any significant introduction directly with Aristotle’s text. It is impossible to tell whether his students, at that point, had worked their way through the (in the order of the curriculum) prior physical treatises, notably the Physics, de Caelo, and de Generatione et Corruptione. In any case, Olympiodorus makes no reference to lectures he had previously delivered on these texts; all he does is place the present work into the context of the other physical treatises. So he says, for example, that Aristotle wrote three treatises about the elementary bodies, the de Caelo, which concerns itself with them insofar as they are eternal, the de Generatione, which concerns their coming to be, and the Meteorology, which treats them as things that are “subject to influences” (pathainomena), a very unusual term the precise meaning of which Olympiodorus nowhere defines. The term occurs in Proclus, but in different contexts.