Indians

Free to read here, from Project Gutenberg.

The Native Races [of the Pacific states], Volume 5, Primitive History

Hubert Howe Bancroft

The Native Races [of the Pacific states], Volume 3, Myths and Languages

Hubert Howe Bancroft

Essays of an Americanist

Daniel G. Brinton

The Native Races [of the Pacific states], Volume 2, Civilized Nations

Hubert Howe Bancroft

The Native Races [of the Pacific states], Volume 1, Wild Tribes

Hubert Howe Bancroft

Adair's History of the American Indians

James Adair

The Prehistoric World; Or, Vanished Races

Emory Adams Allen

Compendio de la historia general de América. Tomo I

Carlos Navarro y Lamarca

Spanish

The Myths of the New World

Daniel G. Brinton, also an audiobook

The North Americans of Antiquity

John T. Short

The Native Races [of the Pacific states], Volume 4, Antiquities

Hubert Howe Bancroft

American Hero-Myths: A Study in the Native Religions of the Western Continent

Daniel G. Brinton, also an audiobook

The American Nations, Vol. I.

C. S. Rafinesque

The American Race

Daniel G. Brinton

Art in Shell of the Ancient Americans

William Henry Holmes

Early Man in the New World

Kenneth Macgowan and Joseph A. Hester

Lives of Famous Indian Chiefs

Norman B. Wood

La cruz en América (Arqueología Argentina)

Adán Quiroga

Spanish

Ancient America, in Notes on American Archaeology

John D. Baldwin

The History of Ancient America, Anterior to the Time of Columbus

George Jones

I. Origen de los indios de América. II. Origen y civilizaciones de los indígenas del Perú.

Carlos Prince

Spanish

The Indian Chief: The Story of a Revolution

Gustave Aimard

Los Indios, su Historia y su Civilización

Antonio Batres Jáuregui

Spanish

The Story of Extinct Civilizations of the West

Robert E. Anderson, M.A., F.A.S.

Vestiges of the Mayas

Augustus Le Plongeon

Catalogo de los Objetos Etnologicos y Arqueologicos Exhibidos por la Expedición Hemenway

Jesse Walter Fewkes and others

Spanish

The Philosophic Grammar of American Languages, as Set Forth by Wilhelm von Humboldt

Daniel G. Brinton

A Record of Study in Aboriginal American Languages

Daniel G. Brinton

American Languages, and Why We Should Study Them

Daniel G. Brinton

Some Observations on the Ethnography and Archaeology of the American Aborigines

Samuel George Morton

Prehistoric Structures of Central America: Who Erected Them?

Martin I. Townsend

Travels Amongst American Indians, Their Ancient Earthworks and Temples

Lindesay Brine

Incentives to the Study of the Ancient Period of American History

Henry Rowe Schoolcraft

Mémoire sur l'origine Japonaise, Arabe et Basque de la civilisation des peuples du plateau de Bogota

Charles Hippolyte Paravey, chevalier de

French