[66] Diodorus Siculus, lib. iii, cap. 38.

[67] Plinii, “Naturalis Historia,” lib. xxxvii, cap. 32.

[68] Marbodei, “De lapidibus,” Friburgi, 1531, fol. 16.

[69] Volmar, Steinbuch, ed. by Hans Lambel, Heilbronn, 1877, p. 22.

[70] Alberti Magni, “Opera Omnia,” ed. Borgnet, Parisiis, 1890, vol. v, p. 43. De mineralibus, lib. ii, tract. 2.

[71] Bauer, “Edelsteinkunde,” Leipzig, 1909, p. 750.

[72] Albertus Magnus, “Le Grand Albert des secretz des vertus des Herbes, Pierres et Bestes. Et aultre livre des Merveilles du Monde, d’aulcuns effetz causez daulcunes bestes,” Turin, Bernard du mont du Chat (c. 1515). Liv. ii, fol. 9 recto.

[73] Bellucci, “Il feticismo primitivo in Italia,” Perugia, 1907, pp. 22-25.

[74] “De lapidibus,” Friburgi, 1531, f. 8.

[75] St. Hildegardæ, “Opera Omnia,” in Pat. Lat. ed Migne, vol. cxcvii, col. 1254.