This volume of working papers includes eight papers dealing mainly with experimental topics in linguistics and in phonology and speech. The following articles are in the collection: "Units in Speech Perception,""The Temporal Realization of Morphological and Syntactic Boundaries,""Comparison of Controlled and Uncontrolled Normal Speech Rate,""Word…

The author considers the issues of linguistic diversity (distribution of variation within communities) and linguistic distance (degree of variation between varieties within a system or between variety systems). He seeks to emphasize the usefulness for further development of distance studies of the concept of language area (Sprachbund), the…