﻿Plate 
  12. 
  — 
  Chilean 
  and 
  Argentine 
  landscapes. 
  Top: 
  Modern 
  terraced 
  agri- 
  

   culture 
  along 
  Rio 
  Caspana, 
  North 
  Chile. 
  (Courtesy 
  W. 
  E. 
  Rudolph.) 
  

   Center: 
  View 
  from 
  near 
  the 
  Cuesta 
  Obisbo, 
  Diaguita 
  country. 
  Bottom: 
  

   Calchaqui 
  Valley 
  and 
  La 
  Poma. 
  Irrigated 
  valley 
  below 
  and 
  dry 
  upper 
  

   slopes 
  in 
  foreground. 
  (After 
  Bowman, 
  1924.) 
  

  

  