# Περὶ Πυρετῶν [Sp.] 15.1

Alexander of Aphrodisias, Περὶ Πυρετῶν [Sp.], Chapter 15. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/alexander-of-aphrodisias/sp/15.1

Τριῶν τοίνυν ἐν ἡμῖν ὄντων, στερεῶν, ὑγρῶν καὶ τῆς ἀερώδους οὐσίας, καὶ τῶν μὲν μορίων τοῦ ἡμετέρου σώματος ὄντων τῶν στερεῶν, τῶν δὲ χυμῶν τῶν ὑγρῶν, τοῦ δὲ φυσικοῦ πνεύματος τῆς ἀερώδους οὐσίας, συμβαίνει τὴν παρὰ φύσιν θερμότητα ἄλλοτε μὲν ἐξ ἄλλου τῶν εἰρημένων ἄρχεσθαι, ἐπινέμεσθαι δὲ καὶ συνδιατιθέναι τῷ πεπονθότι τὰ λοιπὰ δύο γένῆ, εἰ μὴ φθάσειε λυθῆναι πρότερον καὶ διαφορηθῆναι· κἀντεῦθεν τρεῖς ἡμῖν καὶ παρὰ τὴν ὕλην διαφοραὶ τῶν πυρετῶν ἀναφαίνονται.

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Alexander of Aphrodisias, Περὶ Πυρετῶν [Sp.], ed. Julius Ludwig Ideler. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0732.tlg003.local001/.