# Ἰατρικαὶ Ἀπορίαι καὶ Προβλήματα Φυσικά 20

Cassius Iatrosophista, Ἰατρικαὶ Ἀπορίαι καὶ Προβλήματα Φυσικά, Section 20. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/cassius-iatrosophista/text/20

Διὰ τί οἱ χασκόμενοι ἐπ’ ἔλαττον ἀκούουσιν; ὅτι ἐν τῷ διΐστασθαι τὰς γένυς, συμπιέζεται ἡ ἀκοή, ἅμα καὶ πνεύματος κατεχομένου, ὅθεν καὶ ἦχοι γίνονται. τοῦ οὖν ἔξωθεν ἀέρος μὴ ἔχοντος παρείσδυσιν, οὐ γίνεται ἀντίληψις.

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Cassius Iatrosophista, Ἰατρικαὶ Ἀπορίαι καὶ Προβλήματα Φυσικά, 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/tlg0733.tlg001.local001/.