Sin autem eripietur lumen a vi vaporis, tunc secundum puteum dextra ac sinistra defodiantur aestuaria; ita quemadmodum per nares spiritus ex aestu<ariis> dissipabuntur.
If, however, the light is extinguished by the power of the exhalation, then air-shafts are to be dug right and left adjoining the well. In this way the vapours from the air will be dissipated, as the air is through the nostrils.
final_alignments\Vitruvius_Architecture_Book_8.json