- The Restored Pronunciation of Greek and Latin
- A Comparative Grammar of the Indo-Germanic Languages: A Concise Exposition of the History of Sanskrit, Old Iranian ... Old Armenian, Greek, Latin, ... Lithuanian and Old Church Slavonic; Volume 4
- Reliquiae Philologicae: Or, Essays in Comparative Philology
- A Comparative Grammar of the Indo-Germanic Languages, Vol. 2: A Concise Exposition of the History of Sanskrit, Old Iranian (Avestic and Old Persian), Old Armenian, Greek, Latin, Umbro-Samnitic, Old Ir
- Verner'S Law in Italy: An Essay in the History of the Indo-European Sibilants