The American Race A Linguistic Classification and Ethnographic Description of the Native Tribes of North and South America

Some Observations on the Ethnography and Archaeology of the American Aborigines

Los Indios, su Historia y su Civilización

The Philosophic Grammar of American Languages, as Set Forth by Wilhelm von Humboldt With the Translation of an Unpublished Memoir by Him on the American Verb

The Prehistoric World; Or, Vanished Races

Essays of an Americanist I. Ethnologic and Archæologic. II. Mythology and Folk Lore. III. Graphic Systems and Literature. IV. Linguistic.

American Languages, and Why We Should Study Them

The American Nations, Vol. I. Or, Outlines of a National History of the Ancient and Modern Nations of North and South America

Compendio de la historia general de América. Tomo I