Langs den Congo tot Brazzaville / De Aarde en haar Volken, 1906

A travel account recounts a steamship voyage from the river mouth upriver toward Brazzaville, observing the wide, swift Congo, palm-dotted sandspits, scarce freshwater, and narrow coastal settlements that serve as trading posts. The narrative alternates vivid natural description — dense, impenetrable rainforest, islands, and shifting channels — with practical details of navigation, hazards, and the layout of foreign trading factories and administrative stations. It surveys regional commerce in palm oil, groundnuts, rubber and ivory, traces how trade moved inland, and records daily life at riverine outposts, port operations, and the colonial mechanisms that concentrate hinterland produce for shipment to the coast.