﻿GEOLOGICAL 
  SURVEY 
  OF 
  THE 
  STATE 
  OF 
  NEW 
  YORK. 
  

  

  (GEOLOGICAL 
  MAP.) 
  

  

  1892-18 
  93. 
  

  

  In 
  the 
  report 
  of 
  1892, 
  published 
  1893, 
  under 
  the 
  head 
  of 
  

   geological 
  map, 
  the 
  writer 
  has 
  given 
  a 
  short 
  resume, 
  pp. 
  25-39, 
  of 
  

   the 
  history 
  and 
  progress 
  of 
  geological 
  maps 
  of 
  the 
  State 
  and 
  

   portions 
  of 
  the 
  State, 
  to 
  the 
  year 
  1888, 
  those 
  of 
  subsequent 
  date 
  

   having 
  been 
  accidentally 
  omitted. 
  At 
  the 
  time 
  of 
  this 
  writing 
  

   it 
  was 
  intended 
  to 
  follow 
  with 
  the 
  publication 
  of 
  the 
  paper 
  on 
  

   the 
  limestones 
  of 
  the 
  Helderberg 
  mountains 
  and 
  associated 
  for- 
  

   mations, 
  and 
  one 
  other 
  contribution 
  to 
  the 
  geological 
  map 
  of 
  the 
  

   State. 
  It 
  became 
  necessary, 
  however, 
  to 
  postpone 
  these 
  papers 
  

   to 
  the 
  report 
  of 
  1893. 
  The 
  accompanying 
  titles 
  indicate 
  the 
  

   direction 
  in 
  which 
  work 
  has 
  been 
  carried 
  on 
  toward 
  the 
  comple- 
  

   tion 
  of 
  the 
  geological 
  map 
  of 
  the 
  State 
  up 
  to 
  the 
  close 
  of 
  the 
  

   season 
  of 
  1893. 
  

  

  In 
  1892 
  the 
  Legislature 
  of 
  the 
  State 
  made 
  appropriations 
  suffi- 
  

   cient 
  to 
  secure 
  the 
  engraving 
  of 
  a 
  base 
  map, 
  which 
  was 
  accom- 
  

   plished 
  under 
  the 
  supervision 
  of 
  the 
  United 
  States 
  Geological 
  

   Survey. 
  From 
  this 
  appropriation 
  a 
  small 
  sum 
  was 
  reserved 
  for 
  

   field 
  work, 
  and 
  a 
  sum 
  of 
  $200 
  was 
  also 
  reserved 
  for 
  the 
  mounting 
  

   of 
  one 
  hundred 
  copies 
  of 
  a 
  preliminary 
  geological 
  map, 
  which 
  it 
  

   was 
  proposed, 
  by 
  Major 
  Powell, 
  to 
  print 
  in 
  colors 
  for 
  the 
  use 
  of 
  

   the 
  State 
  of 
  New 
  York. 
  The 
  Directors 
  of 
  the 
  United 
  States 
  

   Geological 
  Survey 
  also 
  assigned 
  Mr. 
  N. 
  H. 
  Darton, 
  one 
  of 
  the 
  

   assistants 
  of 
  that 
  survey, 
  to 
  work 
  under 
  my 
  direction 
  in 
  the 
  State 
  

   of 
  New 
  York, 
  we 
  paying 
  only 
  his 
  field 
  expenses, 
  and 
  his 
  work 
  

   has 
  been 
  continued 
  for 
  the 
  seasons 
  of 
  1892 
  and 
  1893. 
  

  

  The 
  'results 
  of 
  Mr. 
  Darton's 
  work 
  will 
  be 
  found 
  in 
  the 
  report 
  

   upon 
  the 
  Helderberg 
  limestones 
  and 
  associated 
  formations 
  of 
  

   eastern 
  New 
  York 
  ; 
  the 
  distribution 
  of 
  the 
  geological 
  formations 
  

   of 
  the 
  Mohawk 
  valley 
  ; 
  the 
  geology 
  of 
  Albany 
  and 
  Ulster 
  coun- 
  

  

  