![Codex Leicester, 9v. - Page with two drawings, which is dedicated, as stated already in the premise, to confuting the theories on fossil shells hypothesising that they had been transported far from the sea by the Biblical Flood Among his personal recollections, Leonardo mentions a "great sack" of fossil shells and corrals collected on the mountains around Parma and Piacenza by some peasants who had brought them to his "factory" where he was working on the "great Horse" for the Sforza. And then the timber found at Castelfiorentino ("in my time", that is, in his youth). In the margin of the folio he adds two experiments conducted in a "hole" with plates of glass at the sides: that of the deep wave and the wind [fig. 1]; and that of the surface wave. Interesting is the memorandum on making a terracotta shower: "Have it made here at the jug-maker".](https://vitruvio.imss.fi.it/foto/isd/av/lei_09v_800.jpg)
Codex Leicester, 9v. - Page with two drawings, which is dedicated, as stated already in the premise, to confuting the theories on fossil shells hypothesising that they had been transported far from the sea by the Biblical Flood Among his personal recollections, Leonardo mentions a "great sack" of fossil shells and corrals collected on the mountains around Parma and Piacenza by some peasants who had brought them to his "factory" where he was working on the "great Horse" for the Sforza. And then the timber found at Castelfiorentino ("in my time", that is, in his youth). In the margin of the folio he adds two experiments conducted in a "hole" with plates of glass at the sides: that of the deep wave and the wind [fig. 1]; and that of the surface wave. Interesting is the memorandum on making a terracotta shower: "Have it made here at the jug-maker".
© Alessandro Vezzosi
Last update 26/feb/2008