Leonardo da Vinci photo gallery
Madrid Ms. II, 76v. - Cost estimate for building the Pistoia Canal and expedients for making its bed impermeable with mud and by the trampling feet of herds of animals, c. 1504. Cf. also folio 15A-22v in the Codex Leicester, where Leonardo returns to the idea of using "large animals" to facilitate the fording of rivers.
Alessandro Vezzosi
Last update 14/mar/2008








![Madrid Ms. II, 24v-25r. - Projects for Piombino: covered road, tower, straightened moat, citadel [Monte a Santa Maria fortress], Rocchetta and two memorandums: on f. 24v "Castle keep of Piombino, on the day of November 20, 1504" and on f. 25r: "On the last day of November for All Saints' Day" (but All Saints' Day is the 1st of November, and not the last) 1504, I made that demonstration in Piombino to its Lord".](https://vitruvio.imss.fi.it/foto/isd/av/madii_024v-025r_100q.gif)
















