...As soon as Tarzan regained his senses and it was found that he was notseriously injured, the prisoners were hastened into line and the returnmarch toward the Congo Free State boundary commenced... 
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
... There is not much knowledge of the Christian religion in either Congo or Angola, yet it is looked upon with a certain degree of favor...
David Livingstone 「Missionary Travels and Researches in South Africa」
...There are many things to be had here and in Lagoswhich tend to make life more tolerable, that you cannot have elsewhereuntil you are south of the Congo...
Mary H. Kingsley 「Travels in West Africa」
...Fortunately for me that gentlemanelected to take a favourable view of this affair, and in every way inhis power assisted me during my entire stay in Congo Français...
Mary H. Kingsley 「Travels in West Africa」
...The Congo Free State railway I am informed, has cost, at a rate permile, something like eight times this...
Mary H. Kingsley 「Travels in West Africa」
...Inaddition to coffee and cacao attempts are being made in Congo Françaisto introduce the Para rubber tree, a large plantation of which I frequentlyvisited near Libreville, and found to be doing well...
Mary H. Kingsley 「Travels in West Africa」
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