Map shows international, provincial, Nigeria-Cameroons, divisional, native authority and tribal boundaries, lighthouses, customs stations, missions, native courts, three classes of roads and railways, telegraph lines, wireless stations, government medical stations, forest reserves, Trustee Territory administered as part of Benue, and part of Adamawa is color coded . The smaller native authority and tribal areas and those consisting of two or more detached portions are indicated by numbers "1750/765/4-50" Original maps are filed in the Map/Geospatial Center, a map reproduction is attached to companion volume.