Note II-53 — Chapter II · ANTIQUITIES OF THE ISTHMUS, COSTA RICA, MOSQUITO COAST, AND NICARAGUA.
Reading edition
Boyle's Ride, vol. ii., pp. 42-7; Friederichsthal, in Lond. Geog. Soc., Jour., vol. xi., p. 100; Id., in Nouvelles Annales des Voy., 1841, tom. xcii., p. 297.