Columbia subject headings:
Harvard subject headings:
Africa--Discovery and exploration.
Ethnology--Africa
Ethnology--History--19th century.
Ethnology--Sudan
Primitive societies.
Princeton subject headings:
Ethnology--Study and teaching--Europe--History.
Ethnology--Sudan.
Europe--Intellectual life--19th century.
Primitive societies--Historiography.
Sudanese--Social life and customs.