ILLUSTRATIONS xiii 



FACING FAOB 



Country around Arequipa, showing Mount Misti 268 



The expedition en route via hand-car, Changollo to Arce 268 



An Indian hut in the Yungas of Cochabamba . 288 



The expedition in the Cuchicancha Pass 292 



Vampire-bat from Todos Santos . , 300 



Tamandua ant-eater 300 



Yuracares chewing yucca-roots for making casire 306 



Yuracare women and children 306 



The great Puya, a species of pine growing in the Bolivian Andes at an 



elevation of 13,000 feet 324 



The plaza at Mizque 326 



Vermejo on the Santa Cruz trail 338 



Quechua habitation on the upland desert 346 



Rio Cachimayo at Peras Pampa, Sucre 352 



Bridge across the Rio Pilcomayo 352 



Quechua Indians wearing the costume used during the reign of the 



Incas, five hundred years ago 358 



Ploughing at Rosario de Lerma 374 



Tilcara, showing the stream and valley and the snow-capped Andes in 



the distance 374 



The lagoon in the Chaco, Embarcacion 380 



Paramo above Tafi 380 



The great crested tinamou 402 



A burrowing owl ...., ... , . . 402 



Skinning a boa * . . 404 



Boa sunning itself at the entrance to a vizcacha burrow . . ; . . 404 



Oculto, or Tucotuco, a rare rodent with mole-like habits 406 



Gray fox, abundant in the semiarid regions ......... 406 



