[32] See the "Cuadro historico-geroglifico," &c., contributed by Don _José Fernando Ramirez_ (curator of the national Museum at Mexico) to _Garcia y Cubas_, "Altas geographico, estadistico e historico de la Republica Mexicana," Entrega 29a (1858). [33] On all that concerns the Mexican cosmogonies, see _Müller_, pp. 477 sq., 509--519; _Bancroft_, Vol. III. pp. 57--65; _Ixtlilxochitl_, "Historia Chichimeca," capp. i. ii.; _Kingsborough_, "Mexican Antiquities," Vol. V. pp. 164-167; _Humboldt_, pp. 202--211. [34] See _Sahagun_, Tom. II. pp. 281--283, Lib. viii. cap. vi. [35] The sacerdotal year was lunar. The civil year, which was doubtless of later origin, and had been adopted as better suited to the purposes of agriculture, was solar. Every thirteenth year the two coincided. The number _four_, which plays an important part in Mexican symbolism (cf. the Mexican cross) gave a kind of cosmic significance to 13 × 4 = 52. [36] See _Bancroft_, Vol. III. pp. 393-396. [37] Compare the Appendix to Jourdanet's translation of Bernal Diaz, pp. 912 sqq. [38] On the conversion of the Mexicans, &c., compare the anonymous treatise at the end of _Kingsborough's_ "Mexican Antiquities," Vol. IX. Cf. also _Torquemada,_ Lib. xvii. cap. xx., Lib. xix. cap. xxix. [39] See _P. Pauke,_ "Reise in d. Missionen von Paraguay:" Vienna, 1829, p. 111. [40] In addition to the works of _Acosta_, _Gomara_, _Herrera_, _Humboldt_, _Waitz_ and _Müller_, already cited in connection with Mexico, and _Prescott's_ "Conquest of Peru," we may mention the following authorities for the political and religious history of Peru: