Et primum exponam de atramento, cuius usus in operibus magnas habet necessitates, ut sint notae, quemadmodum praeparentur certis rationibus artificiorum, ad id temperaturae.
And first I will deal with black. The use of this in buildings is often necessary, so that we must know how the tempering of materials for the purpose is carried out by special craftsmanship.
final_alignments\Vitruvius_Architecture_Book_7.json