bibliographer who made his greatest contribution to linguistics with his pioneer work, Dictionary of Americanisms: A Glossary of Words and Phrases, Usually Regarded as Peculiar to the United States (1848). It went through four editions and was translated into Dutch and German.

Appointed commissioner for the survey of the boundary between the United States and Mexico in 1850–53, he wrote as a result Personal Narrative of Explorations and Incidents in Texas, New Mexico, California, Sonora and Chihuahua . . . , 2 vol. (1854, reprinted 1965). Robert V. Hine, Bartlett's West: Drawing the Mexican Boundary (1965), assesses Bartlett's drawings and his stature as an interpreter of the West. As secretary of the state of Rhode Island he rearranged and classified the state records and prepared bibliographies and compilations on state history. Bartlett assisted John Carter Brown in acquiring and cataloging his noted book collection, now in the John Carter Brown Library on the campus of Brown University.