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Sign Language Among North American Indians Compared With That Among Other Peoples And Deaf-Mutes First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-1880, Government Printing Office, Washington, 1881, pages 263-552
Mallery, Garrick
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The Talking Deaf Man A Method Proposed, Whereby He Who is Born Deaf, May Learn to Speak
Amman, Johann Conrad, Foot, Daniel