﻿Plate 
  30 
  

  

  Cliff 
  of 
  Lower 
  Devonic 
  (Coeymans) 
  limestone 
  near 
  Indian 
  Ladder, 
  Albany- 
  

   county 
  

  

  From 
  N. 
  Y. 
  State 
  Mus. 
  Bui. 
  19, 
  pi. 
  70 
  

  

  