This volume is an investigation and classification of dialects along the Wu and Jiang-Hwai Mandarin border in China's eastern Yangtze Valley. It is the first monograph-length study to critically question the traditional single criterion of initial voicing for the classification of Wu dialects and propose a comprehensive comparative framework as a more successful alternative. Arguing that dialect affiliation is best determined through analysis of dialect correspondence to common phonological systems, the author develops a taxonomic analysis that definitively distinguishes Common Northern Wu and