[552] Jacobi Wolfii, “Curiosus amuletorum scrutator,” Francofurti & Lipsiæ, 1692, pp. 388, 392.

[553] Alexandri Tralliani, “De medicamentis,” Basileæ, 1556, p. 593; lib. x, cap. 1.

[554] G. Schlumberger in the Mém. de la Soc. des antiq. de France, 1882, vol. xliii, pp. 135 sq.

[555] William Hamper, “Observations on a Gold Ring with a Runic Inscription,” Archæologia, vol. xxi, London, 1827, pp. 24–30.

[556] Cited in Johannis de Cuba, “Ortus Sanitatis” (Strassburg, ca. 1483); “De lapidibus,” cap. cix.

[557] Havard, “Historie de l’orfévrerie,” Paris, 1896, p. 358.

[558] Johannis de Cuba, “Ortus Sanitatis,” “De lapidibus,” cap. lx.

[559] Johannis de Cuba, “Ortus Sanitatis,” (Strassburg, ca. 1483). “De lapidibus,” cap. lxv.

[560] Jacobi Wolfii, “Curiosus amuletorum scrutator,” Francofurti & Lipsiæ, 1692, pp. 408, 409, 419.

[561] Edmund Waterton on Cramp Rings in the “Archæological Journal,” vol. xxi, pp. 103–113.