Molli enim et rara potestate cum sint, exsiccant sugendo e materia sucum; cum autem superarit et abundarit copia calcis et harenae, paries plus habens umoris non cito fiet evanidus, sed ab his continetur.
For since the stones are of a soft and open nature, they dry up the moisture by sucking it out of the mortar. But when the supply of lime and sand is abundant, the wall having more moisture will not quickly become perishable, but holds together.
final_alignments\Vitruvius_Architecture_Book_2.json