Ms. Palatino 766 (BNCF), fol. 33r
Equipment and methods for boring an underground tunnel on a steady gradient, like that of the bottini.
.................................
Javascript is required for the simple search to function correctly in this page.
If Javascript is disabled please use the following links to enlarge pictures:
)
Mariano di Iacopo, called Taccola
De ingeneis, Libri III-IV