Et ab littera s ducatur linea parallelos axoni ad extremum hemicyclium, ubi erit littera y; et ab v ad sinistram hemicyclii item parallelos linea ducatur ad litteram x.
From the letter s let there be drawn a line parallel to the axis, to the farther semicircle at the point y; and from v let there be drawn also a parallel line on the left of that semicircle to the letter x.
final_alignments\Vitruvius_Architecture_Book_9.json