1420.

Where is Valentino?—­boots,—­boxes in the custom-house,...,—­[Footnote 5:  Carmine.  A church and monastery at Florence.] the monk at the Carmine,—­squares,—­[Footnotes 7 and 8:  Martelli, Borgherini; names of Florentine families.  See No. 4.] Piero Martelli,—­[8] Salvi Borgherini,—­send back the bags,—­a support for the spectacles,—­[Footnote 11:  San Gallo; possibly Giuliano da San Gallo, the Florentine architect.] the nude study of San Gallo,—­the cloak.  Porphyry,—­groups,—­square,—­[Footnote 16:  Pandolfini, see No. 1544 note.] Pandolfino. [Footnote:  Valentino.  Cesare Borgia is probably meant.  After being made Archbishop of Valence by Alexander VI he was commonly called Valentinus or Valentino.  With reference to Leonardo’s engagements by him see pp. 224 and 243, note.]

1421.

Concave mirrors; philosophy of Aristotle;[Footnote 2:  Avicenna (Leonardo here writes it Avinega) the Arab philosopher, 980-1037, for centuries the unimpeachable authority on all medical questions.  Leonardo possibly points here to a printed edition:  Avicennae canonum libri V, latine 1476 Patavis. Other editions are, Padua 1479, and Venice 1490.] the books of Avicenna Italian and Latin vocabulary; Messer Ottaviano Palavicino or his Vitruvius [Footnote 3:  Vitruvius. See Vol.  I, No. 343 note.]. bohemian knives; Vitruvius[Footnote 6:  Vitruvius. See Vol.  I, No. 343 note.]; go every Saturday to the hot bath where you will see naked men;

‘Meteora’ [Footnote 7:  Meteora. See No. 1448, 25.],

Archimedes, on the centre of gravity; [Footnote 9:  The works of Archimedes were not printed during Leonardo’s life-time.] anatomy [Footnote 10:  Compare No. 1494.] Alessandro Benedetto; The Dante of Niccolo della Croce; Inflate the lungs of a pig and observe whether they increase in width and in length, or in width diminishing in length.

[Footnote 14:  Johannes Marliani sua etate philosophorum et medicorum principis et ducalis phisic. primi de proportione motuum velocitate questio subtilissima incipit ex ejusdem Marliani originali feliciter extracta, M(ilano) 1482.

Another work by him has the title:  Marlianus mediolanensis.  Questio de caliditate corporum humanorum tempore hiemis ed estatis et de antiparistasi ad celebrem philosophorum et medicorum universitatem ticinensem. 1474.] Marliano, on Calculation, to Bertuccio.  Albertus, on heaven and earth [Footnote 15:  See No. 1469, 1. 7.], [from the monk Bernardino].  Horace has written on the movements of the heavens.

[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).]