Quibus autem locis eae copiae non sunt, caementa marmorea, sive assulae dicuntur, quae marmorarii ex operibus deiciunt, contunduntur et moluntur, subcretum in operibus utuntur.
But where there are no such supplies, marble-rubble, or splinters as they are called, which the marble workers throw down from their benches, are crushed and ground. This material when sifted the plasterers use in their work.
final_alignments\Vitruvius_Architecture_Book_7.json