- A New, Practical and Easy Method of Learning Ther German Language: With a Pronunciation, Arranged According to J. Oehlschläger's Recently Published Pronouncing German Dictionary. First Course
- A New, Practical and Easy Method of Learning the Portuguese Language
- A New, Practical and Easy Method of Learning the German Language With a Pronunciation: Arranged According to J.C. Oehschlager's Recently Published Pronouncing German Dictionary. Second Course
- Henn-Ahn's German Grammar: A Practical, Easy, and Thorough Method of Learning the German Language. in Accordance With the Modern German Orthography
- Henn-Ahn's German Grammar: A Practical, Easy, and Thorough Method of Learning the German Language. in Accordance With the Modern German Orthography