[1221] A bronze instrument found at Sorata had the following composition, according to an analysis by David Forbes:—
| Copper | 88.05 |
| Tin | 11.42 |
| Iron | .36 |
| Silver | .17 |
| –—— | |
| 100.00 |
Humboldt gave the composition of a bronze instrument found at Vilcabamba as follows:—
| Copper | 94 |
| Tin | 6 |
| –— | |
| 100 |
[1222] Fifteenth Report of the Trustees of the Peabody Museum of Ethnology, vol. iii. 2, p. 140 (Cambridge, 1882).
[1223] [Cf. the plates in the Necropolis of Ancon, and De la Rada’s Les Vases Péruviens du Musée Archéologique de Madrid, in the Compte Rendu (p. 236) of the Copenhagen meeting of the Congrès des Américanistes.—Ed.]
[1224] It is believed that some of the heads on the vases were intended as likenesses. One especially, in a collection at Cuzco, is intended, according to native tradition, for a portrait of Rumi-ñaui, a character in the drama of Ollantay.
[1225] Prehistoric Man, i. p. 110. A great number of specimens of Peruvian pottery are given in the works of Castelnau, Wiener, Squier, and in the atlas of the Antigüedades Peruanas. [Cf. also Marcoy’s Voyage; Mémoires de la Soc. des Antiquaires du Nord (two plates); J. E. Price in the Anthropological Journal, iii. 100, and many of the books of Peruvian travel.—Ed.]
[1226] [The narratives of the Spanish conquest necessarily throw much light, sometimes more than incidentally, upon the earlier history of the region. These sources are characterized in the critical essay appended to chapter viii. of Vol. II., and embrace bibliographical accounts of Herrera, Gomara, Oviedo, Andagoya, Xeres, Fernandez, Oliva, not to name others of less moment.—Ed.]
[1227] See Note II. following this essay.