﻿PLATE 
  XL 
  VI. 
  —To 
  face 
  page 
  152. 
  

  

  J. 
  N. 
  Nevius, 
  photo. 
  

  

  Beach 
  Markings 
  on 
  Medina 
  Sandstone, 
  Lockport, 
  Niagara 
  Co. 
  

   Originai. 
  Slab 
  53 
  Inches 
  by 
  32 
  Inches. 
  

  

  