exemplified in his conflicts with a third great deity whom we shall next describe. In any case we may define Tezcatlipoca as another determination of the Sun, and specifically of the winter Sun of the cold, dry, sterile season.[13] The third great deity is Quetzalcoatl, that is to say "the feathered serpent," or "the serpent-bird;" and it is specially noteworthy, in connection with the elevated rank which he occupied in the Mexican pantheon, that he was not an Aztec deity, but one of the ancient gods of the invaded country. He was in fact a Toltec deity, and we recognize in his name, as well as in the special notes in the legend concerning him, that god of the wind whom we know already in Central America under the varying names of Cuculcan, Hurakan, Gucumatz, Votan and so forth. He is almost always a serpent, and a serpent with feathers. His temple at Mexico departed altogether from the pyramidal type that we have described. It was dome-shaped and covered. The entrance was formed by a great serpent-mouth, wide open and showing its fangs, so that the Spaniards thought it represented a gate of hell. Quetzalcoatl's priests were clothed in white, whereas the ordinary garb of the Mexican priests was black. There was something mysterious and occult about the priesthood of this deity, as though it were possessed of divine secrets or promises, the importance of which it would be dangerous to undervalue. A special aversion to human sacrifice, and especially to the frightful abuse of the practice amongst the Aztecs, was attributed to this god and his priests, in passive protest, as it were, against the sanguinary rites to which the Aztecs attributed the prosperity of their empire.