Table of Contents
Guide to the reader
1. First stage
2. Second stage
3. Third stage
4. Fourth stage
I. Schleicher’s fable in other proto-languages
    I.1. Eurasiatic
    I.2. Afroasiatic
    I.3. Dravidian
    I.4. Kartvelian
    I.5. Nostratic
    I.6. Northeast and Northwest Caucasian
    I.7. Basque
    I.8. Tyrsenian
II. Laryngeal loss and vocalism
III. The three-dorsal theory