Deinde circinationis totius sumenda pars est xv; et circini centrum conlocandum in linea circinationis, quod loci secat eam lineam aequinoctialis radius, ubi erit littera f; et signandum dextra sinistra, ubi sunt litterae g h.
Then the circumference is to be divided into fifteen parts, and the centre of the compasses is to be put at that point f in the circumference where it is cut by the equinoctial ray c, and the points g h are to be marked right and left.
final_alignments\Vitruvius_Architecture_Book_9.json