I-V -- Acknowledgement -- Introduction -- CHAPTER 1 The framework in SPE and some criticism -- CHAPTER2 Modifications and extensions of the SPE framework -- CHAPTER 3 The feature NASAL -- CHAPTER 4 The appropriateness of the definition of the feature NASAL -- CHAPTER 5 A survey of data on nasality -- CHAPTER 6 The internal structure of oral and nasal vowels in various environments -- CHAPTER7 Height in oral and nasal vowels -- CHAPTER 8 Nasal consonants and their relation to vowels -- Retrospect -- Appendix 1 -- Appendix 2 -- Appendix 3 -- Appendix 4 -- Appendix 5 -- Bibliography