LITERATURE
- Bancroft, Hubert Howe, The native races of the Pacific states of North America.
- Barnes, Earl and Mary S., Education among the Aztecs. Studies in Education, I, 73-80.
- Joyce, Thomas A., Mexican archæology.
- Mason, Otis Tufton, Woman's share in primitive culture.
- Nadaillac, Marquis de, Prehistoric America.
- Prescott, William H., History of the Conquest of Mexico.