Comparison of Indian rural and urban sign languages of the deaf found that the urban form transmitted information primarily by means of appeal to a shared linguistic code, and the rural form mainly by appeal to communal nonlinguistic knowledge. Both languages employed effective and appropriate means given their environments. (23 references)…

Handshapes with single finger extension are examined in data from 10 sign languages: American, Australian, British, Finnish, French, Japanese, Providence Island, Rennell Island, Indian, and Swedish. It is concluded that a theory of marking can be developed along the same lines as for spoken language, with only the physiology differing. (Author/MSE)