- The Dakotan Languages, and Their Relations to Other Languages
- Language
- A Spelling-Book for Advanced Classes
- Elements of Gaelic Grammar
- The story of my first novel; How a novel is written
- How to Write Clearly
- Icelandic Primer with Grammar, Notes and Glossary
- 方言
- Roget's Thesaurus
- A booke called the Foundacion of Rhetorike
- Sign Language Among North American Indians Compared With That Among Other Peoples And Deaf-Mutes
- The Influence of Old Norse Literature on English Literature
- The Chinese Classics: with a translation, critical and exegetical notes, prolegomena and copious ind...
- McGuffey's Sixth Eclectic Reader
- The Philosophy of Style
- Illustration of the Method of Recording Indian Languages
- Contribucion Para El Estudio de los Antiguos Alfabetos Filipinos
- McGuffey's Eclectic Spelling Book
- How I write my novels
- Etimología de los Nombres de Razas de Filipinas