I-VIII -- Notes on Symbols -- 1 Introduction and orientation -- 2 Definition and phonological status of prenasalization -- 3 Prenasalized consonants: Units or clusters? -- 4 Formal representation of prenasalized consonants -- 5 Phonetic evidence for a cluster analysis -- 6 A derivational model for nasal-oral unification -- 7 Prenasalized consonants: Processes of origin -- 8 Phonetic processes in derivation -- 9 Implications and conclusions -- References -- 301-302