﻿Am. 
  Jour. 
  Sci., 
  Vol. 
  XLII, 
  i 
  

  

  Plate 
  V. 
  

  

  Profile 
  view 
  of 
  columns, 
  East 
  Rock, 
  near 
  the 
  house 
  on 
  the 
  brow 
  of 
  the 
  Rock 
  in 
  Plate 
  IV. 
  

   (From 
  a 
  photograph.) 
  

  

  