A Narrative of the Expedition sent by Her Majestys Government to the River Niger in 1841, under the command of Capt. H. D. Trotter. [With plates.]

1848

ALLEN, William Captain, R.N., and THOMSON (Thomas Richard Heywood)

Map of the Gold Coast, Ashanti and Northern Territories

1912

Great Britain. General Staff. Geographical Section.

Durch Kamerun von Süd nach Nord. Reisen und Forschungen im Hinterlande 1889 bis 1891 ... Mit ... Abbildungen ... von R. Hellgrewe, etc

1893

Morgen, Curt von.

Vorläufige übersicht von Zintgraff's Reise von Kamerun nach dem Benuë

1890

C.L. Keller

1:4m

Cyclopædia of Modern Travel ... comprising narratives of the most distinguished travelers since the beginning of this century: prepared and arranged by Bayard Taylor

1856

Taylor, Bayard.

River Niger from Bussa to the sea

1924

Admiralty

1:300k

Nigeria (1907)

1907

Great Britain. General Staff. Topographical Section.

Guinea zwischen Sierra-Leona und dem Aequator

1786

Anville, Jean-Baptiste Bourguinon d'

1:4m

Guinea Zwischen Sierra-Leona und dem Aequator

1786

Schraembl, Franz Anton

West Africa II.

1839

Society for the Diffusion of Useful Knowledge (Great Britain)

1:6m