WEST COAST OF AFRICA sHowinG 
PLATE VI, 
SUBMERGED VALLEY or tHe CONGO. 
1: 
9 
4 
NAUTICAL MILES 
12° East of Greenwich. 
Reproduced by permission of The Hydrographer. 
London : Edward Stanford, 12,13,£ 14, Long Acre, W.C. 
 Eatabs, London. 
