PREFACE -- Contents -- I. THE PHONOLOGICAL DEVELOPMENT OF CHILD LANGUAGE AND APHASIA AS A LINGUISTIC PROBLEM -- 1. Types of Linguistic Activity -- 2. Interaction between Child Language and the Languages of the World -- 3. Occasional and Constant Agreements -- 4. Recording and Analysis of the Beginnings of Child Language -- 5. Principle of Least Effort and Cessation of Babbling Sounds -- 6. Emergence of the Speech Sound -- 7. Interjectional Sounds -- 8. Supposed Exceptions to Order of Phonological Development -- 9. Dissolution of the Phonological System -- 10. Sound and Meaning Disturbances -- 11. Linguistic Character of Aphasic Sound-Deafness and Sound-Muteness -- II. STRATIFICATION OF THE PHONOLOGICAL SYSTEM -- 12. Relative and Absolute Chronology of Phonological Development -- 13. Minimal Consonantismus and Minimal Vocalismus -- 14. Identical Laws of Solidarity in the Phonological Development of Child Language and in the Synchrony of the Languages of the World -- 15. Late or Rare Phonological Acquisitions -- 16. Relative Degree of Sound Utilization -- 17. Panchrony of the Laws of Solidarity -- 18. Laws of Solidarity and Speech Pathology -- 19. Normal Speech Disturbances -- 20. Uniformity of Stratification -- III. FOUNDATION OF THE STRUCTURAL LAWS -- 21. Atomistic Attempts at Explanation -- 22. Inherent Direction of Development -- 23. Split Consonant ∾ Vowel -- 24. Opposition Nasal-Oral in Consonants and Vowels -- 25. Splitting of Consonants into Labials and Dentals and Vowels into Wide and Narrow -- 26. Splitting of Consonants into Front and Back -- 27. Agreements Between the Systems of Sound and Colour -- 28. Classification and the Structure of Higher Units -- 29. Place of the Dentals in the Consonant System -- 30. Secondary Gradations of Phonological Oppositions -- IV. CONCLUDING OBSERVATIONS -- 31. Prospects -- 32. Glottogony.

33. Principle of Language Change -- BIBLIOGRAPHY.