﻿GEOLOGICAL 
  SURVEY 
  OF 
  THE 
  STATE 
  OF 
  NEW 
  YORK. 
  

  

  (GEOLOGICAL 
  MAP.) 
  

  

  PRELIMINARY 
  REPORT 
  

  

  ON 
  THE 
  

  

  Geology 
  of 
  Albany 
  County 
  

  

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

  

  1892-1893 
  

  

  