The Landmarks Series is a research and publications outfit funded by the Landmarks Research Foundation to publish recent outstanding doctoral dissertations on any aspect of Nigerian linguistics, languages, literatures and cultures. This study is a departer from most previous work on YorUbA Grammar in the sense that rather than being purely a descriptive grammar; it attempts to provide a theoretical analysis of the internal and external syntax of YorUbA nominal expressions using the Chomskyan Principles and Parameters approach to syntax. This Generative theory attempts to characterize the...