Cerussa vero, cum in fornace coquitur, mutato colore ad ignem incendi efficitur sandaraca'id autem incendio facto ex casu didicerunt homine'et ea multo meliorem usum praestat, quam quae de metallis per se nata foditur.
When white lead is roasted in a furnace, under the heat of the fire it changes its colour and becomes red lead or sandaraca. This fact was accidentally discovered in a conflagration. A much better result is obtained in this way than from the natural substance which is procured from the mines.
final_alignments\Vitruvius_Architecture_Book_7.json