Notes
This paper is an extensively revised version of a paper read at the 1973 Summer Meeting of the Linguistic Society of America. Aside from more detailed discussion of examples, most of this revision has to do with the exposition of broader theoretical foundations for the descriptive framework employed. I would not have been able to expand my work in this direction without the benefit of many discussions with, and advice from Richmond H. Thomason, to whom I am deeply indebted for his assistance.