[19]

From Perkins's Tuscan Sculptors, vol. i. p. 54. A recent work by Signor G.J. Cavallucci, entitled S. Maria del Fiore, Firenze, 1881, has created a revolution in our knowledge regarding this church.

[20]

Giov. Villani, x. 192.

[21]

Illustrated Handbook of Architecture, book vi. chap. i.

[22]