Relief shown by hachures. Map shows zones of: slave trade , import of arms and spirituous liquor, and prevailing religions; telegraph cable lines. Map shows administrative and political divisions colonial by treaty, and undefined international boundaries. Also, predominant religions. From book "Africa Waiting or The Problem of Africa's Evangelization" by Douglas M. Thor Bottom right, outside neatline: "Engraved at Stanford's Geog. Establishment." Original map is filed in the Map/Geospatial Center, a map reproduction is attached to companion volume.