The book "Expedition to the West African Rubber Jungle" is a report by the German botanist Rudolf Schlechter about the study of plant species and the search for natural rubber in West African regions. During the expedition commissioned by the German Colonial Society, the author describes in detail the wild natural conditions, ethnic groups and the life of local residents. Rudolph Schlechter, as an experienced naturalist and researcher, shares in the book his impressions of the trip, provides important information about rubber trees and their cultivation in this region. In addition, it reveals important aspects of the rubber trade and the economy of the colony. "Expedition to the West African Rubber Jungle" is considered a valuable resource for studying the nature and history of colonial practices in Germany. The text has been published to scholarly standards and contains many facts that make it a useful resource for researchers, students and the general public interested in the history of natural science.