William Dwight WhitneyLanguage and the Study of Language
Twelve Lectures On the Principles of Linguistic Science
Preface
1. Introductory
2. Nature of the force which produces the changes of language
3. Phonetic change
4. Varying rate and kind of linguistic growth, and causes affecting it
5. Erroneous views of the relations of dialects
6. Languages and literatures of the Germanic, Slavonic, Lithuanic, Celtic, Italic, Greek, Iranian and Indian branches of Indo-European speech
7. Beginning of Indo-European language
8. Families of languages, how established
9. Uncertainties of genetic classification of languages
10. Classification of languages
11. Origin of language
12. Why men alone can speak.