[242] “Prolégomènes Historiques,” of Ibn. Kaldoun, in Notices et Extraits des Manuscripts de la Bibliothèque Impériale, vol. xx, pt. i, pp. 61–62, Paris, 1865.
[243] Burton, “Supplementary Nights,” 1868, vol. v, p. 52.
[244] Hammer-Purgstall, “Abhandlung über die Siegel der Araber, Persen und Türken,” Denkschriften der Kaiserl. Akad. der Wissenschaften, Phil.-Hist. Kl., Wien, 1850, p. 29.
[245] Ibid., p. 1.
[246] Garzoni, “Piazza Universale,” German transl., Franckfurt am Main, 1641, p. 697.
[247] Jean Baptiste Tavernier, “Relation du Serrail,” Paris, 1702, pp. 480, 481.
[248] O. M. Dalton, “Byzantine Art and Archæology,” Oxford, 1911, p. 540; figs. 319, 320 on p. 537.
[249] Nicetas, “Histoire de l’Empire Grec, Règne de John Comnénus,” Paris, 1693, p. 7.
[250] P. J. Mariette, “Traité des pierres gravées,” Paris, 1750, vol. i, p. 21.
[251] “Catalogue of the Special Exhibition of Works of Art at the South Kensington Museum, June, 1862,” section 32, “Rings,” by Edmund Waterton, p. 622.