1911 Encyclopædia Britannica, Volume 19… (1911)
“ The course of all the rivers is obstructed by rapids in their descent from the table-land to the plain. The greater part of the country is covered with dense primeval forest. This forest growth is due to the fertility of the soil and the great rainfall, Spanish Guinea with the neighbouring Cameroon country possessing one of the heaviest rain records of the world. The humidity of the climate joined to the excessive heat (the average temperature is 78° F.) makes the climate trying. In the eastern parts of the protectorate the forest is succeeded by more open country. ”
