Describes an investigation of the nature of English dialect acquisition among bilingual Puerto Ricans. Subjects were in the sixth grade of a school in the Puerto Rican community in North Philadelphia. Results show that subjects can socially classify linguistic variants from two competing systems and use them appropriately. (Author/RM)

Analyzes an Afro-American sermon and a disputed speech by a Black political leader to mixed audience. Dialect alternants signal switching between contrasting styles in both. Conversational inference is shown to depend not only on grammar, lexical meanings, and conversational principles, but also on constellations of speech variants, rhythm, and…