Colton, G. Woolworth (George Woolworth), 1827-1901Relief shown by hachures. Inset: Liberia. Prime meridian: Washington, D.C. No. 35 in Colton, G.W. "Atlas of the world", v.2., 1856. Shows northwestern Africa including Morocco, Algeria, Sahara, Senegal and Guinea. 1 map: col.; 37 x 30 cmJPEGc93bff71-a43b-43d4-bfef-273f0528df99engPublicAfrica: north western sheet.MapsNorthern Africa1855University of Michigan