At Porto Cesenatico, on the 6th of September 1502 at 9 o’clock a. m.
The way in which bastions ought to project beyond the walls of the towers to defend the outer talus; so that they may not be taken by artillery.
[Footnote: An indistinct sketch, accompanies this passage.]
Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.