Item propter inopiam coloris indici cretam selinusiam aut anulariam vitro, quod Graeci isatin appellant, inficientes imitationem faciunt indici coloris.
Also, because of the scarcity of indigo they make a dye of chalk from Selinus, or from broken beads, along with woad (which the Greeks call isatis), and obtain a substitute for indigo.
final_alignments\Vitruvius_Architecture_Book_7.json