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  Plate 
  161. 
  — 
  Otovalo 
  agriculture. 
  Top: 
  Plow. 
  (Courtesy 
  Parsons' 
  estate.) 
  

   Bottom: 
  Using 
  digging 
  stick 
  made 
  of 
  eucalyptus 
  wood. 
  (After 
  Parsons, 
  1945, 
  

   pi. 
  6.) 
  

  

  