DAMERGU, a frontier country of Bornu, in Africa; under the sway of the Tuaricks, greatly intermixed with people of Bornu and Housa. It is the granary of Air, and is, in fact, chiefly peopled by slaves of the Kelowis. Ola-
loal, the capital, lies in about N. Lat. 14. 30. Besides this city there are said to be 200 or 300 towns and villages in the country. (See Petermann's Account of the Expedition to Central Africa, 1854.)