The Ethnology of the British Islands
1888
Norway, and the Norwegians.
2011
The Eastern Origin of the Celtic Nations proved by a comparison of their dialects with the Sanskrit, Greek, Latin and Teutonic languages. Forming a supplement to Researches into the Physical History of Mankind.
2011
The Natural History of the Varieties of Man : Illustrated Edition
2026
Opuscula: Essays Chiefly Philological and Ethnographical
2026
The English Language
2021