L. o">[
1419.
Marcello lives in the house of Giacomo da Mengardino.
Br. M. 202b]
1420.
Where is Valentino? [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.]—boots,—boxes in the custom-house …,— [Footnote: Carmine. A church and monastery at Florence.] the monk at the Carmine,—squares,—[Footnotes 7 an 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.
1421.
Concave mirrors; philosophy of Aristotle;[Footnote:Filosofia d'Aristotele see No. 1481 note.][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: 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.