Circum enim porticus sive navalia sunt facienda sive ex porticibus aditus <ad> emporia, turresque ex utraque parte conlocandae, ex quibus catenae traduci per machinas possint.
For round these colonnades either docks are to be made, or approaches from the colonnades to the warehouses. On either side towers are to be built from which chains (across the harbour) can be drawn by machinery.
final_alignments\Vitruvius_Architecture_Book_5.json