[31] Archaeologia, vol. xvii. pp. 176-179 (London, 1814).
[32] Inscriptiones antiquae totius orbis romani (Heidelberg, 1602-1603).
[33] Miscell. erudit. antiquitatis.
[34] Munimenta antiqua, vol. ii. (London, 1799), p. 22, pl. xx. fig. 3.
[35] See Montfaucon, Suppl. de l'antiq. expliquée, vol. iii. pl. lxxiii., Nos. 1 and 2, and explanation p. 189; Francesco Bianchini. de tribus generibus instr. mus. veterum, Romae, 1742, pl. ii., Nos. 12 and 13, and p. 11; Suetonius, Vitae Neronis, ed. Charles Patin, cap. 41, p. 304, where the contorniate in question, whose musical instrument differs essentially from Bianchini's and Montfaucon's, is figured.
[36] See Catalogue of the Exhibition of Illuminated MSS. at the Burlington Fine Arts Club, 1908, No. 31.
[37] Notes of Early Spanish Music (London, 1887), pp. 120 and 121.
[38] Idumentario Española (Madrid, 1880).
[39] Die musikalischen Instrumente in den Miniaturen des frühen Mittelalters, p. 50 (Leipzig, 1903).
[40] An interesting pamphlet by Eugène de Bricqueville, Les Musettes (Paris, 1894), p. 36, with illustrations.