﻿Plate 
  74. 
  — 
  Views 
  of 
  Sacsahuaman. 
  Top: 
  Looking 
  along 
  the 
  fortifications. 
  

   (Courtesy 
  Truman 
  Bailey.) 
  Bottom: 
  Section 
  of 
  wall. 
  (Courtesy 
  American 
  

   Museum 
  of 
  Natural 
  History.) 
  

  

  