The assumptions underlying the classfication rule-learning description of concept acquisition are critically examined. An alternative characterization of what it means to have a primacy hypothesis and Gibson's position that knowledge of the world is a product of direct perception are discusssed. (Author/RD)

Over the years the Navajo language has received more attention than any other American Indian language. The grammatical work represents all traditions in American Indian linguistic research, from the earliest descriptivism to the latest generative grammar. In addition, there exists a large amount of material written in Navajo and a plethora of…