The religious cult of one-half of the Mexican hierarchy was distinctly nocturnal. The chief duties of certain priests were astronomical observation and the supervision of the sacred fire, which was kept perpetually burning on the summit of each temple-crowned pyramid, in what was termed “the sacred or divine brazier” of sculptured stone. Two priests jointly watched by night and day and received and transmitted to the flames the incense offerings of the devout. The temple fires were extinguished only at the expiration of a cycle of fifty-two years and were then rekindled by the high priest at midnight precisely, with impressive solemnity. In ancient Mexico, it should however be observed, although the logical association of women with the hidden forces of nature, the underworld and the Below, had exerted a certain influence over her practical existence, it had not yet given rise to the idea of her inferiority as compared to man, the associate of the Heaven, the Above, the visible and active forces of nature. The native sages did not identify her so intimately with the earth as to deny her the possession of a soul—the celestial spark. On the other hand it is curious to note that the Nahuatl word for wife is Cihua-tlan-tli and for husband is Te-o-quichtli. Is it possible that the particle _tlan_ in the first and _Teo_ in the second may have contributed to strengthen the association of the woman with earth=tlalli (tlan=land of) and the man with Teotl, the sun, something divine and celestial? In course of time it doubtlessly would have transpired, in Mexico as elsewhere, that the set of primitive ideas which, during untold centuries, imposed upon women seclusion, obscurity and inactivity and thus hindered her development of strength of body and mind, would have directly induced an inferiority. This has been subsequently proclaimed, as we know, in many countries, as a direct proof of her lower nature and of her affinity with the element earth. The assumed and actual inferiority of woman may therefore be regarded as the logical, inevitable but artificial result of primordial classification and association. Suggested by the same natural phenomena which were visible to all inhabitants of the same latitudes, these ideas occurred to all people at a certain stage of their development and exerted a dominating influence over the subsequent growth of their intelligence. It is but now, that, unconsciously, mankind is beginning to emerge from the leading strings of its infancy, which became an iron bondage to its prolonged childhood. In Mexico, at the period of the Conquest, the absolute equality of the male and female principles was theoretically maintained. At the same time it is possible to discern certain agencies at work which were tending to connect the Below, the female principle, with harm and evil. From time immemorial it had been the custom of the Chichimecs, who, according to Sahagun (book XII, chap. 12, par.