﻿GEOLOGICAL 
  SURVEY 
  OF 
  THE 
  STATE 
  OF 
  NEW 
  YORK. 
  

  

  (GEOLOGICAL 
  MAP.) 
  

  

  REPORT 
  ON 
  THE 
  RELATIONS 
  

  

  OF 
  THE 
  

  

  Helderberg 
  Limestones 
  and 
  Associated 
  

  

  Formations 
  

  

  IN 
  EASTERN 
  NEW 
  YORK. 
  

  

  JAMES 
  HALL, 
  State 
  Geologist. 
  N. 
  H. 
  DARTON, 
  Assistant. 
  

  

  1892. 
  

  

  