﻿PLATE 
  3. 
  

  

  ■;■.*"£ 
  

  

  Cliffs 
  of 
  Pentamerns 
  and 
  Tentaciilite 
  Limestone 
  at 
  the 
  Indian 
  Ladder, 
  Albany 
  Connty, 
  

   N. 
  Y. 
  Looking 
  Southwest. 
  

  

  