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migration

(Encyclopedia) migration, of people, geographical movements of individuals or groups for the purpose of permanently resettling. Normal internal migration has been characterized by a population…

Renfrewshire

(Encyclopedia) Renfrewshire or Renfrew, former county, central Scotland. Under the Local Government Act of 1973, Renfrewshire became (1975) part of the Strathclyde region, but in 1996 that region was…

Nature Conservancy

(Encyclopedia) Nature Conservancy, nonprofit organization established in 1951 to preserve or aid in the preservation of natural environments. It protects wilderness areas in the United States and…

Ayrshire

(Encyclopedia) Ayrshire or Ayr, former county, SW Scotland. Ayrshire became part of the Strathclyde region in 1975. In the local government reorganization of 1996, Strathclyde was dissolved and the…

Hess, Walter Rudolf

(Encyclopedia) Hess, Walter Rudolf, 1881–1973, Swiss physiologist. For his work on the control of organs by certain areas of the brain he shared with Egas Moniz the 1949 Nobel Prize in Physiology or…

butte, in geology

(Encyclopedia) butte, an isolated hill with steep sides and a flat top, resulting from the more rapid erosion of the surrounding areas. Buttes are characteristic of the plains of the W United States…

Banffshire

(Encyclopedia) Banffshire or Banff, former county, NE Scotland. Under the Local Government Act of 1973, Banffshire became (1975) part of the new Grampian region. In the local government…

Djerid, Chott

(Encyclopedia) Djerid, ChottDjerid, Chottshôt jĕrēdˈ [key], salt lake, c.1,900 sq mi (4,920 sq km), W central Tunisia, N Africa. It is now an extensive salt flat with water only in its lower areas.

Pearl, river, United States

(Encyclopedia) Pearl, river, 485 mi (781 km) long, rising in E Miss. and flowing S to Lake Borgne, an inlet of the Gulf of Mexico; its lower section (116 mi/187 km) forms the Miss.-La. boundary.…

geopark

(Encyclopedia) geopark, area identified by UNESCO as encompassing one or more sites of geological as well as archaeological, ecological, or cultural importance. The Global Network of National…