Dr. B. Jézak, “Aus dem Reiche der Edlesteine,” Prag, 1914, p. 65. Footnote 231: Kobert, “Ein Edlestein der Vorzeit,” Stuttgart, 1910, p. 36. Footnote 232: Andrea Matthiolus, “Commentaries sur Discoride,” Lyon, 1642 (written in 1565), p. 538. Footnote 233: Fühner, “Lithotherapie,” Berlin, 1902, p. 44. Footnote 234: Braunfels, “Reformation der Apptecken,” Strassburg, 1536, fol. XIV b, XX b. Footnote 235: Francisci Indiæ, “Hygiphylus, sive de febre maligna dialogus,” Veronæ, 1593. Footnote 236: Op. cit. pp. 115 sqq. Footnote 237: Op. cit., p. 116. Footnote 238: Op. cit., pp. 118–122. Footnote 239: Boyle, “On the Usefulness of Experimental Philosophy,” Oxford, 1664, p. 108. Footnote 240: Johannis Wolffii, “Curiosus amuletorum scrutator,” Francofurti et Lipsiæ, 1692, p. 564. Footnote 241: J. B. Silvatici, “Controversiæ medicæ,” Francofurti, 1601, p. 223. Footnote 242: Axel Garboe, “Kunsthistoriske Studier over Ædelstene,” Kjbenhavn og Kristiania, 1915, p. 254. Footnote 243: See Axel Garboe, “Kulturhistoriske Studier over Ædelstene, med særligt Henbilk paa det 17. Aarhundrede,” Kjbenhavn og Kristiania, 1915, pp. 141 sqq. Footnote 244: U. F. B. Brückmann, “Abhandlung von Edelsteinen,” Braunschweig, 1757, pp. 4, 5 of preface. Footnote 245: John and Andrew Van Rymsdyk, “Museum Brittanicum,” 2 ed. revised and corrected by P. Boyle, London, 1791, p. 51. Footnote 246: Fernie, “Precious Stones for Curative Wear,” Bristol, 1907, p. 256. Footnote 247: Von Hovorka and Kronfeld, “Vergleichende Volksmedizin,” Stuttgart, 1908, vol. i, p. 355. Communication of Dr. Christof Hartungen, Jr. Footnote 248: Damigeron, “De lapidibus,” ed. Abel, Berol., 1881, p. 177. Footnote 249: Plinii, “Naturalis historia,” lib. xxxvi, cap. 54. Footnote 250: Orphei, “Lithica,” ed. Abel, Berol., 1881, vs. 610 sqq. Footnote 251: Pselli, “De lapidum virtutibus,” ed. Bemond, Lug. Bat., 1745, p. 10. Footnote 252: Konrad von Megenberg’s fourteenth century version, “Buch der Natur,” ed. by Dr. Franz Pfeiffer, Stuttgart, 1861, p. 436. Footnote 253: Andreæ Baccii, “De Gemmis et Lapidibus Pretiosis” (Latin version by Wolfgang Gabelchover of the Italian original), Francofurti, 1603, pp. 100, 101, Note of Gabelchover. Footnote 254: Johannis Braunii, “De Vestitu Sacerdotum Hebræorum,” Amstelodami, 1680, pp. 672–3. Footnote 255: Belucci, “Catalogue de l’Exposition de la Société d’Anthropologie” (Ex. de 1900), pp. 278–279. Footnote 256: Severus Sammonicus, “Preceptes médicaux,” text and trans. by L. Baudet, Paris, 1845, pp. 76, 77. Footnote 257: Gratii Falisci, “Cynegeticon”; collection des auteurs Latin, ed. Nizard, vol. xvi, Paris, 1851, p. 786, lines 401–405. Footnote 258: Garbe, “Die indische Mineralien”; Naharari’s “Rajanighaṇṭu,” Varga XIII, Leipzig, 1882, p. 76. Footnote 259: