Voyages sans cartes = Journey without maps

This is an account of a trip Greene made in 1935 with his cousin, Barbara Greene, through the previously unexplored interior of Liberia. It was an extremely uncomfortable journey, with Greene falling seriously ill halfway through the trip. Possibly as a result of this he also made a point of noting the many illnesses with which the local inhabitants were assailed, particularly malaria and venereal desease, which were both rife.