Codex Arundel, 271r. - Studies on the Arno river and the Rifredi torrent, along with a list of expenses: "When Rifredi B strikes against the slow Arno, the Arno's riverbed rises and Rifredi, running fast, consumes it and makes it deeper at once", c. 1504.
© Alessandro Vezzosi
Last update 26/feb/2008