Ancient Greek text
1. Διάστημα p. 2, ἤτοι κατὰ διαστάσεις καὶ τὰς ἀπʼ ἀλλήλων ἀποτμήσεις.
Euclidis Opera Omnia, Teubner, Leipzig, 1895
Scholia in Euclidem, Scholia in Euclidis optica (scholia vetera), ed. Johan Ludvig Heiberg, H. Menge. 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.
Texts from The Greek Library and the Perseus Digital Library, under CC BY-SA 4.0 and CC BY 4.0. Divided into reading sections by Interlinea.