[Footnote:  Filosofia d’Aristotele see No. 1481 note.]

1422.

Of the three regular bodies as opposed to some commentators who disparage the Ancients, who were the originators of grammar and the sciences and ...

1423.

The room in the tower of Vaneri.

[Footnote:  This note is written inside the sketch of a plan of a house.  On the same page is the date 1513 (see No. 1376).]

1424.

The figures you will have to reserve for the last book on shadows that they may appear in the study of Gerardo the illuminator at San Marco at Florence.

[Go to see Melzo, and the Ambassador, and Maestro Bernardo].

[Footnote:  L. 1-3 are in the original written between lines 3 and 4 of No. 292.  But the sense is not clear in this connection.  It is scarcely possible to devine the meaning of the following sentence.

2. 3. Gherardo Miniatore, a famous illuminator, 1445-1497, to whom Vasari dedicated a section of his Lives (Vol.  II pp. 237-243, ed.  Sansoni 1879).

5. Bernardo, possibly the painter Bernardo Zenale.]

1425.

Hermes the philosopher.

1426.

Suisset, viz. calculator,—­Tisber, —­Angelo Fossobron,—­Alberto.

1427.

The structure of the drawbridge shown me by Donnino, and why c and d thrust downwards.

[Footnote:  The sketch on the same page as this text represents two poles one across the other.  At the ends of the longest are the letter c and d.  The sense of the passage is not rendered any clearer.]

1428.

The great bird will take its first flight;—­ on the back of his great swan,—­filling the universe with wonders; filling all writings with his fame and bringing eternal glory to his birthplace.

[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.

1433.

The book on Water to Messer Marco Antonio.

[Footnote:  Possibly Marc-Antonio della Torre, see p. 97.]

1434.

Have Avicenna’s work on useful inventions translated; spectacles with the case, steel and fork and...., charcoal, boards, and paper, and chalk and white, and wax;.... .... for glass, a saw for bones with fine teeth, a chisel, inkstand ........ three herbs, and Agnolo Benedetto.  Get a skull, nut,—­mustard.