Note X'-6 — Chapter X · LANGUAGES OF CENTRAL AND SOUTHERN MEXICO.
Reading edition
Pimentel, Cuadro, tom. i., pp. 275-309; Gallatin, in Amer. Ethno. Soc., Transact., vol. i., pp. 245-52; Moxo, Cartas Mejicanas, p. 68; Vater, Mithridates, tom. iii., pt iii., p. 126; Manuel de San Juan Crisostomo Nájera, Gram. Tarasca, in Soc. Mex. Geog., Boletin, 2da época, tom. iv., pp. 664-684.