In this paper the author takes a positive not a negative view of sign language. It is the center of attention, not as an object of interest to the specialist in language, but as the central feature in the complex sociolinguistic and psycholinguistic system that makes the deaf person part of general American culture and at the same time part of a…

Charles A. Ferguson's concept of "diglossia" (1959, 1964) is used in analyzing sign language. As in Haitian Creole or Swiss German, "two or more varieties" of sign language are "used by the same speakers under different conditions"--these are here called "High" (H) sign language and "Low" (L) sign language. H sign language is formally taught…