Sahagun, bk. vi, c. viii.

See appendix on Tonalamatl.

See chapter on Cosmogony.

Seler, Codex Vaticanus B, 1902–3, p. 174.

In many cosmogonies—Hindu, Babylonian, Chinese, Scandinavian, for example—the earth is formed from the remains of a slain monster or living being.

See section on Tlaloc.