Note 1225 — Chapter IV · MIXTURE OF ANCIENT AND MODERN SUPERSTITION.
S. G. C. (Samuel George Chetwynd) Middlemore translation
In the fourteenth century there existed a kind of hell-gate near Ansedonia in Tuscany. It was a cave, with footprints of men and animals in the sand, which whenever they were effaced, reappeared the next day. Uberti. Il Dittamondo, l. iii. cap. 9.