Swamps, vegetation, cultivated areas, rocks, and anchorages along river are shown. Depth shown by soundings in fathoms. Relief shown by hachures and spot heights. Altitudes given in feet above river. Inset map of Central Africa [scale ca. 1:8,448,000] includes physical features and names of territories. From: Proceedings of the Royal Geographical Society and monthly record of geography. Vol. 2 (1880), no. 5, pp. 289-305; held in Firestone Library. Call number: G7 .J6873