﻿PLATE 
  XXII.— 
  To 
  face 
  page 
  144. 
  

  

  S. 
  R. 
  Stoddard, 
  photo. 
  

  

  Potsdam 
  Sandstone, 
  Grand 
  Flume, 
  Ausable 
  Chasm, 
  Clinton 
  Co. 
  

  

  