Edward Sapir (1884–1939). Language: An Introduction to the Study of Speech. 1921.
Subject Index
| Abbreviation of stem | to | Avestan |
| Bach | to | Bushmen |
| Cambodgian | to | Culture areas |
| Danish | to | Dutch |
| Elements of speech | to | “Explosives” |
| Faucal position | to | “Fuss, Füsse” (German), history of |
| Gaelic | to | Greek, modern |
| Haida | to | Hupa Indians |
| Icelandic, Old | to | “Its,” history of |
| Japanese | to | Kwakiutl |
| Labial trills | to | Luther, German of |
| Malay | to | Mutation, vocalic |
| Nahuatl | to | Number |
| Object | to | Organs of speech |
| Paiute | to | Pure-relational languages |
| Quality of speech sounds | to | Russian |
| Sahaptin | to | Synthetic tendency |
| Takelma | to | Types, linguistic, change of |
| Ugro-Finnic | to | Vowels |
| Walking | to | Written language |
| Yana | to | Zaconie |