For germs among thinkers of India, see Whewell, vol.i, p.

277; also Whitney, Oriental and Linguistic Studies, New York, 1874; Essay on the Lunar Zodiac, p.
345.

For the views of Vincent of Beauvais, see his Speculum Naturale, lib.

xvi, cap.21.For Cardinal d'Ailly's view, see his treatise De Concordia Astronomicae Veritatis cum Theologia (in his Ymago Mundi and separately).

For general statement of De Cusa's work, see Draper, Intellectual Development of Europe, p.512.For skilful use of De Cusa's view in order to mitigate censure upon the Church for its treatment of Copernicus's discovery, see an article in the Catholic World for January, 1869.