Sarmenta aut taedae schidiae comburantur; cum erunt carbones, extinguantur, deinde in mortario cum glutino terantur; ita erit atramentum tectoribus non invenustum.
Brushwood or pine-chips must be burnt, and when they are charred they are to be pounded in a mortar with size. Thus the fresco-painters will have a not unpleasant black colour.
final_alignments\Vitruvius_Architecture_Book_7.json