Get the Friar di Brera to show you [the book] ‘de Ponderibus’ [Footnote 11: Brera, now Palazzo delle Scienze ed Arti. Until 1571 it was the monastery of the order of the Umiliati and afterwards of the Jesuits.
De ponderibus, compare No. 1436, 3.],—
Of the measurement of San Lorenzo,—
I lent certain groups to Fra Filippo de Brera, [Footnote 13: Brera, now Palazzo delle Scienze ed Arti. Until 1571 it was the monastery of the order of the Umiliati and afterwards of the Jesuits.
De ponderibus, compare No. 1436, 3.]—
Memorandum: to ask Maestro Giovannino as to the mode in which the tower of Ferrara is walled without loopholes,—
Ask Maestro Antonio how mortars are placed on bastions by day or by night,—
Ask Benedetto Portinari how the people go on the ice in Flanders,—
On proportions by Alchino, with notes by Marliano, from Messer Fazio,—
The measurement of the sun, promised me by Maestro Giovanni, the Frenchman,—
The cross bow of Maestro Gianetto,—
The book by Giovanni Taverna that Messer Fazio,—
You will draw Milan [21],—
The measurement of the canal, locks and supports, and large boats; and the expense,—
Plan of Milan [Footnote 23: Fondamento
is commonly used by
Leonardo to mean ground-plan. See for instance
p. 53.],—
Groups by Bramante [Footnote 24: Gruppi. See Vol. I p. 355, No. 600, note 9.],—
The book on celestial phenomena by Aristoteles, in Italian [Footnote 25: Meteora. By this Leonardo means no doubt the four books. He must refer here to a MS. translation, as no Italian translation is known to have been published (see No. 1477 note).],—