This item includes notes, letters, and essays on the history, manners, and languages of the American Indians, sent to the Committee and to members of the American Philosophical Society. Contains answers to queries, historical material, Indian speeches, replies to letters of Peter S. Du Ponceau, references to the Lenni Lenape, Indian writing, translations of English into Indian languages.

Includes "Description abrègée du Haut-Missouri adressé: a Monsieur don Zénon Trudeau," an account of a journey up the Missouri River, with descriptions of the life and manners of the Indian tribes, prepared for Don Zenon Trudeau, Lieutenant Governor of the Country East of the Illinois (n.d., [after 1795]). Extracts from journals, June 7, 1794-June 1796 (part printed from copy in Department of State Archives, Washington), 190 pages. Approximately 200 pages of letters. Materials contain descriptions of the culture of the Plains Indians (Cheyenne, Arikara, Mandan, Pawnee, Gros Ventres, Sioux, Poncas), dress, customs, marriage, birth; calumet dance, sun dance, buffalo dance; warfare.

This memoir includes sections on East Florida's boundaries, physical characteristics, navigation, Indian customs, Spanish settlements, Negroes, agricultural products, and climate. Also included are itineraries for East and West Florida.

The collection includes material relating to government, history, festivals, customs, games, etc. of the Ojibwe people. Also includes comments on the language; vocabulary, some items with English glosses; lists of bands and locations; and photographs of people, activities, dwellings, canoes, etc.

This item is a detailed description of the geography, population, natural resources, and agriculture of the Ouachita River area of the Louisiana Territory. Describes mounds; mentions Cataoulou Indians; also gives figures as to numbers of white and Indian hunters. These pages are a record of travel on a road built between Choctaw and Chickasaw country, with comments on the condition of Indian-white relations, the increase in white population, and Wilson's stay, at Muscle Shoals, with Cherokee chiefs Doublehead and Skiowska. Wilson finds the Indians have good farms, furnishings, fences, and stock, and one Indian runs an inn.