[3] Babelon (E. C. F.), Catalogue des camées antiques de la Bib. Nat. (No. 367), p. 199.
[4] Dalton (O. M.), Catalogue of early Christian antiquities in the British Museum. 1901.
[5] Cunynghame (H. H.), European enamels, p. 40.
[6] Niello: a composition of lead, silver, sulphur, and borax.
[7] Wilde (W. R.), Cat. of antiquities of gold, p. 12.
[8] Bulliot (J. G.), Fouilles de Mont Beuvray (ancienne Bibracte) de 1867 à 1895. 1899.
[9] Archæologia, LVIII, p. 240, 1902.
[10] Dalton (O. M.), The treasure of the Oxus, 1905.
[11] A remarkable book descriptive of this treasure has been published by Professor Odobesco, of the University of Bucharest, in which the whole process of inlaying is discussed at considerable length. The same subject has been treated with the most minute care by the well-known art historian, M. Charles de Linas.
[12] Abbé Cochet, Le tombeau de Childéric Ier, 1859.