Eae autem structurae, quae in aqua sunt futurae, videntur sic esse faciendae, uti portetur pulvis a regionibus, quae sunt a Cumis continuatae ad promunturium Minervae, isque misceatur, uti in mortario duo ad unum respondeant.
The masonry which is to be in the sea must be constructed in this way. Earth is to be brought from the district which runs from Cumae to the promontory of Minerva, and mixed, in the mortar, two parts to one of lime.
final_alignments\Vitruvius_Architecture_Book_5.json