- The Book of Enoch
- Ber Die Regierung, Insbesondere Die Kirchenordnung Des K Nigs Zar'a-Jacob
- Ethiopic Grammar: Orthography And Phonology, Morphology And Syntax Of The Ethiopic Language, Also In Comparison With Other Semitic Languages, With A General Introd. And An Index Of Passages
- On the Origin of the Primitive Historical Traditions of the Hebrews...
- Genesis, Critically and Exegetically Expounded;; Volume 2