TRENDS IN LINGUISTICS is a series of books that open new perspectives in our understanding of language. The series publishes state-of-the-art work on core areas of linguistics across theoretical frameworks, as well as studies that provide new insights by approaching language from an interdisciplinary perspective. TRENDS IN LINGUISTICS considers itself a forum for cutting-edge research based on solid empirical data on language in its various manifestations, including sign languages. It regards linguistic variation in its synchronic and diachronic dimensions as well as in its social contexts as important sources of insight for a better understanding of the design of linguistic systems and the ecology and evolution of language. TRENDS IN LINGUISTICS publishes monographs and outstanding dissertations as well as edited volumes, which provide the opportunity to address controversial topics from different empirical and theoretical viewpoints. High quality standards are ensured through anonymous reviewing.

The relationship of theoretical and applied linguistics has lately prompted numer ous debates. This volume originated at one of them. The essence of most of the chapters, of all of them except Fraser's and Davies's, was actually presented at the Round Table on "The Relationships of Theoretical and Applied Linguistics," organized during the 7th World Congress of Applied Linguistics, held in Brus sels, in August 1984. Individually and collectively the chapters assembled here offer support to the idea that applied linguistics should not be juxtaposed to theoretical linguistics; it is a field of research with theoretical as well as applied aspects. Written by different authors from a wide variety of different countries, the chapters may at times express views that are not totally consistent. Nevertheless, we believe that the variability of viewpoints counts among the merits (rather than the defaults) of this internationally written and edited volume. It is our hope that it will prove stimulating to linguists and practitioners in related fields and instructive to students. We wish to express our thanks to Albert Valdman for the interest he has shown in the volume and to record our appreciation to our editors, in particular Eliot Werner and Declan Scully, for their tolerance and patience."