Item testacea spicata tiburtina sunt diligenter exigenda, ut ne habeant lacunas nec extantes tumulos, sed extenta et ad regulam perfricata.
So also Tiburtine tiles laid herring-bone fashion, are to be carefully handled so that they do not present gaps or ridges, being spread out and rubbed to a level.
final_alignments\Vitruvius_Architecture_Book_7.json