Note 102 — Chapter I
Louisa S. Maclehose translation
On ‘Pietra Forte,’ the Official Catalogue of the Italian Section of the International Exhibition of 1862 reports, p. 62, as follows. ‘The rock called Pietraforte ... is very largely used in Florence; it is very durable, as may be seen in the older palaces of the city. In composition it is an arenaceous limestone, which is very hard and unalterable, as its name implies.’ It has been extensively quarried by Fiesole and to the north of Majano, and Monte Ripaldi, above the valley of the Ema to the south of Florence, furnishes large supplies of it. See M, N, on the Frontispiece.