Supra autem ad tignum, quod inibi erat, arcus tegebantur ad canalem crebriter, uti sustinerent corium crudum, quod ea machina erat involuta.
Above the beam thus placed arches were placed frequently along the channel to hold up the raw hide with which the machine was enveloped.
final_alignments\Vitruvius_Architecture_Book_10.json