Reclus, Elisée, The earth and its inhabitants, Africa. (published 1890-1893 [v.1, 1892] ), New York : D. Appleton, 1890-1893 [v.1, 1892]
Schomburg Center for Research in Black Culture / General Research and Reference Division
ID# 1105155
Calabar
In the Bight of Biafra the myriad waterways of the Niger Delta allowed captives to be moved quickly to points of embarkation beyond the knowledge of patrolling cruisers, and thus a clandestine trade survived longer there.