This book examines the syntax and semantics of Salish determiners and quantifiers in great detail; one of the findings is that Salish, though it possesses a robust system of DP-internal quantification, lacks quantificational determiners. Lisa Matthewson proposes an account of differences in the determiner and quantification systems of Salish and English. In particular, Salish and English exemplify opposite settings of a Common Ground Parameter, which means that Salish determiners may not access the common ground of the discourse. This parameter also derives several other differences between Salish and English determiners, such as the absence of a definiteness distinction in Salish. With respect to the absence of quantificational determiners and the robust system of DP-internal quantification that Salish has, Matthewson demonstrates that quantificational DPs in Salish function as generalized quantifiers at logical form. The strong hypothesis that languages do not differ with respect to the presence or absence of generalized quantifiers is upheld. The differences in quantificational strategies between English and Salish turn out to be largely derivable from the independently-required parameter on determiners. This book is a revised version of Matthewson's 1996 University of British Columbia dissertation which was the co-winner of the 1998 FoLLI Dissertation Prize awarded to Outstanding Dissertation in the fields of Language, Logic and Computation by the Amsterdam based European Association for Language, Logic and Information.