﻿GEOLOGICAL 
  SURVEY 
  OF 
  THE 
  STATE 
  OF 
  NEW 
  YORK. 
  

  

  (GEOLOGICAL 
  MAP.) 
  

  

  Preliminary 
  Report 
  

  

  ON 
  THE 
  

  

  GEOLOGY 
  OF 
  ESSEX 
  COUNTY. 
  

  

  JAMES 
  HALL, 
  State 
  Geologist. 
  | 
  J. 
  F. 
  KEMP, 
  Assistant. 
  

  

  1893 
  

  

  79 
  

  

  