[86] Prado, Madrid.
[87] Ghent Cathedral.
[88] Paradiso, xxx. 114.
[89] Ibid. 121.
[90] 2 Esdras ii. 18–19.
[91] Written by the monk Dionysius of Mount Athos in the twelfth century. Translated by M. Didron.
[92] Adoration of the Lamb, Ghent Cathedral.
[93] Florence.
[94] Ruskin, Modern Painters.
[95] Town Museum, Frankfort-on-the-Maine.