Libreria di Pavia. One of the most famous of Italian libraries. After the victory of Novara in April 1500, Louis XII had it conveyed to France, 'come trofeo di vittoria'!] and which treats of Mathematics,—He had a master [learned] in waterworks and get him to explain the repairs and the costs, and a lock and a canal and a mill in the Lombard fashion.

A grandson of Gian Angelo's, the painter has a book on water which was his fathers.

Paolino Scarpellino, called Assiolo has great knowledge of water works.

1449.

Francesco d'Antonio at Florence.

11. 13. [Footnote: 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.]

12. [Footnote: Sco Lorenzo. A church at Milan, see pp. 39, 40 and 50.]

*13. 24. [Footnote: Gruppi. See Vol. I p. 355, No. 600, note 9.]

*16. [Footnote: The Portinari were one of the great merchant- families of Florence.] 1450.