Note 220 — V On Ominous and Luminous Stones
Reading edition
Rose, “Aristoteles De lapidibus und Arnoldus Saxo,” in Zeitschr. für D. Alt., New Series, vol. vi, p. 391. See also Avicenna, “Liber canonis,” Basileæ, 1556, p. 182, lib. ii, Tract. ii, cap. 20.