[Footnote: This seems to be a speculation about the flying machine (compare p. 271).]
1429.
This stratagem was used by the Gauls against the Romans, and so great a mortality ensued that all Rome was dressed in mourning.
[Footnote: Leonardo perhaps alludes to the Gauls under Brennus, who laid his sword in the scale when the tribute was weighed.]
1430.
Alberto da Imola;—Algebra, that is, the demonstration of the equality of one thing to another.
1431.
Johannes Rubicissa e Robbia.
1432.
Ask the wife of Biagio Crivelli how the capon nurtures and hatches the eggs of the hen,—he being drunk.