[112]. Plinii, “Naturalis historia,” Lib. xxxvii, cap. 12.
[113]. Severus Sammonicus, “Preceptes médicaux,” text and French trans. by L. Baudet, Paris, 1845, pp. 84, 85.
[114]. King, “Natural History of Precious Stones,” etc., London, 1865, p. 334, note.
[115]. Raumer, “Historisches Taschenbuch,” I Ser., vol. vi, Leipzig, 1835, p. 366.
[116]. Pyle, “The Therapeusis of Precious Stones,” in his “Medicine,” Detroit, 1897, vol. iii, p. 115.
[117]. Palladii, “De gentibus Indie,” ed. Bissæus, London, 1665, p. 4.
[118]. Martin, “Observations et théories des anciens sur les attractions et la repulsion magnétiques,” in Atti dell’ Accademia Pontefici dei Nuovi Lincei, vol. xviii, p. 18 (1864–65).
[119]. “Gemmarum et lapidum historia,” Lug. Bat., 1636, p. 466; Lib. II, cap. 204.
[120]. From Robert Norman’s “The Newe Attractive,” London, 1581.
[121]. Aldrovandi, “Museum metallicum,” Bononiæ, 1648, p. 566.