Valparaiso-Portillo Pass-Sagacity of mules-Mountain-torrents-Mines, how discovered-Proofs of the gradual elevation of the Cordillera-Effect of snow on rocks-Geological structure of the two main ranges, their distinct origin and upheaval-Great subsidence-Red snow-Winds-Pinnacles of snow-Dry and clear atmosphere-Electricity-Pampas-Zoology of the oppo