XIV PATAGONIAN EXPEDITIONS! NARRATIVE AND GEOGRAPHY. 



GEOGRAPHY OF SOUTHERN PATAGONIA. 



INTRODUCTION 211 



PRINCIPAL GEOGRAPHIC FEATURES . . . .212 



THE PLAINS. 



Their geographical distribution : Diversity of Climate and Topography : Climatic Regions : 

 The Magellanian Region : The Santa Cruzian Region : Age and Origin of the Basalts : Origin 

 and Age of the Patagonian Shingle Formation : The Transverse Valleys . . . .215 



THE MOUNTAINS. 

 The Andes: Origin of the Longitudinal Valleys: Age of the Southern Andes . .231 



THE RIVERS OF PATAGONIA. 



The Rivers of the Plains : Two Classes of Rivers in the Patagonian Plains : The Rio 

 Chico of the Gallegos : The Gallegos River : The Coy River and its Tributaries : The Santa 

 Cruz River : The Rio Chico of the Santa Cruz : The Valley of the San Julian : The de Bajos, 

 St. Dennis and Desire Rivers : Rivers of the Andes : Lion River : Rio Las Heras : Mayer 

 River 236 



THE LAKES OF SOUTHERN PATAGONIA . . .244 



THE COAST OF PATAGONIA 249 



CLIMATE 250 



THE NATIVE INDIAN TRIBES. 

 The Tehuelches : The Onas of the Fuegian Plains : The Channel Indians . . .261 



SETTLEMENTS IN SOUTHERN PATAGONIA. 

 Early Attempts at Settlement : Later Settlements . . . . . . -275 



INDUSTRIES AND RESOURCES OF PATAGONIA. 

 Gold Mining: Lumbering: Wool Growing: Pastoral Pursuits: Other Agricultural Pursuits 277 



SUMMARY 284 



ERRATA 296 



INDEX . . . .297 



