tunc turrium murorumque fundamenta sic sunt facienda, uti fodiantur, si queant inveniri, ad solidum et in solido, quantum ex amplitudine operis pro ratione videantur, crassitudine ampliore quam parietum qui supra terram sunt futuri, et ea impleantur quam solidissima structura.
then the foundations of the towers and walls are to be laid. If such foundations can be found, they are to be dug down to the solid and in the solid, as may seem proportionate to the amplitude of the work, of a breadth greater than that of the walls which shall be above the ground; and these foundations are to be filled with as solid structure as possible.
final_alignments\Vitruvius_Architecture_Book_1.json