- Researches In Prehistoric And Protohistoric Comparative Philology, Mythology, And Archaeology: In Connection With The Origin Of Culture In America And The Accad Or Sumerian Families
- A Short Handbook of the Comparative Philology of the English, Anglo-Saxon, Frisian, Flemish or Dutch, Low or Platt Dutch, High Dutch or German, ... French, Spanish, and Portuguese Tongues
- Memoir on the Comparative Grammar of Egyptian, Coptic Ude (Classic Reprint)
- Notes on the Ligurians, Aquitanians and Belgians ... Reprinted from the "Transactions of the Royal Historical Society," etc.
- Ephesus: Being a Lecture Delivered at the Smyrna Literary and Scientific