Ea conchylia, cum sunt lecta, ferramentis circa scinduntur, e quibus plagis purpurea sanies, uti lacrima profluens, excussa in mortariis terendo comparatur.
When the shells have been collected, they are broken up with iron tools. Owing to these beatings a purple ooze like a liquid teardrop is collected by bruising in a mortar.
final_alignments\Vitruvius_Architecture_Book_7.json