Ce livre est le r cit de l'exploration du Tchad par Harry Alis dans les ann es 1920. travers ses aventures, il d crit les paysages, la faune et la flore du Tchad, ainsi que les cultures et les modes de vie des populations locales. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America,...