In 1852 the Smithsonian Institution published a grammar and dictionary of the Dakota language prepared by Mr. Riggs. Since that time Mr. Riggs, assisted by his sons, A. L. and T. L. Riggs, and by Mr. Williamson, has been steadily engaged in revising and enlarging the grammar and dictionary; and at the request of the Bureau he is also preparing a volume of Dakota literature as texts for illustration to the grammar and dictionary. He is rapidly preparing this work for publication, and it will soon appear.
The work of Mr. Riggs and that of Mr. Dorsey, mentioned above, with the materials already published, will place the Dakotan languages on record more thoroughly than those of any other family in this country.
The following is a table of the languages of this family now recognized by the Bureau:
LANGUAGES OF THE DAKOTAN FAMILY.
1. Dakóta (Sioux), in four dialects:
(a) Mdéwakaⁿtoⁿwaⁿ and Waqpékute.
(b) Waqpétoⁿwaⁿ (Warpeton) and Sisítoⁿwaⁿ (Sisseton).
These two are about equivalent to the modern Isaⁿ´yati (Santee).
(c) Ihañk´toⁿwaⁿ (Yankton), including the Assiniboins.
(d) Títoⁿwaⁿ (Teton).