Some of Tupper's most notable works include:
* _The History of English Literature_ (1896)
* _Types of Society in Medieval Literature_ (1910)
* _Chaucer's England and the Prologue to the Canterbury Tales_ (1918)
* _Shakespeare's Versification_ (1915)
* _Spenser's Minor Poems_ (1923)
* _On Translating Homer: With a Translation of Books XVIII and XIX of the Iliad_ (1928)
Tupper was also a member of the American Academy of Arts and Sciences, the Modern Language Association, and the American Philological Association. He was a highly respected scholar, and his work has had a significant impact on the study of English literature.