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  Plate 
  136.— 
  Terraces 
  and 
  tombs 
  of 
  the 
  Quebrada 
  de 
  Humahuaca 
  and 
  the 
  Puna. 
  

  

  Top: 
  Terraces. 
  (After 
  Debenedetti 
  and 
  Casanova, 
  1933-35, 
  pi. 
  2, 
  b.) 
  Bot- 
  

   tom: 
  A 
  closed 
  sepulcher, 
  Sorcuyo, 
  Puna 
  de 
  Juyuy. 
  (After 
  Casanova, 
  1936 
  c, 
  

   pi. 
  3,3.) 
  

  

  