Le r cit palpitant d'une exp dition scientifique en Argentine, qui explore les paysages grandioses du Rio Salado et du Chaco, ainsi que les cultures et les communaut s qui les habitent. 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, and possibly other nations. Within the United...