Haec autem contineantur ab alteris duobus crassis is, latis s; distent autem transversaria inter se circiter pedes iii s.
Now these are to be held together by two others 18 inches thick, and 6 inches broad. Let the cross-pieces be at intervals of 3 1/2 feet.
final_alignments\Vitruvius_Architecture_Book_10.json