Note X-16 — Chapter X · ANTIQUITIES OF THE NORTHERN MEXICAN STATES.
Reading edition
Gil, in Soc. Mex. Geog., Boletin, tom. viii., p. 496; Ternaux-Compans, in Nouvelles Annales des Voy., 1842, tom. xcv., p. 295; same account in Mofras, Explor., tom. i., p. 161.