Indian Linguistic Families of America, North of Mexico: Seventh Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1885-1886, Government Printing Office, Washington, 1891, Pages 1-142

Published in 1891, 'Indian Linguistic Families of America, North of Mexico' is a scientific report by John Wesley Powell, detailing the diverse languages of North America's indigenous tribes. This work provides an in-depth analysis of linguistic classifications and relationships, addressing the complexities of language study influenced by historical interactions and cultural exchanges. Powell advocates for a standardized nomenclature to aid in the classification of these languages, making this publication a foundational text for linguistics and anthropology regarding Native American languages.