﻿6 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Professor 
  Fairchild 
  spent 
  the 
  season 
  of 
  1908 
  and 
  portions 
  of 
  

   two 
  previous 
  seasons 
  in 
  the 
  study 
  of 
  the 
  Pleistocene 
  geology 
  of 
  

   the 
  area, 
  and 
  his 
  reports 
  Avill 
  be 
  found 
  included 
  in 
  their 
  appro- 
  

   priate 
  places. 
  

  

  During 
  both 
  the 
  seasons 
  of 
  1907 
  and 
  1908 
  Dr 
  E. 
  O. 
  Ulrich 
  of 
  

   the 
  United 
  States 
  Geological 
  Survey 
  was 
  in 
  the 
  field 
  for 
  a 
  time 
  

   Avith 
  Dr 
  Ruedemann 
  and 
  myself. 
  In 
  1908 
  Dr 
  H. 
  M. 
  Ami 
  of 
  the 
  

   Geological 
  Survey 
  of 
  Canada 
  was 
  also 
  present 
  and 
  we 
  spent 
  10 
  

   days 
  together, 
  chiefly 
  in 
  study 
  of 
  the 
  Pamelia, 
  Lowville 
  and 
  Black 
  

   River 
  limestones, 
  with 
  a 
  short 
  excursion 
  to 
  the 
  district 
  around 
  

   Kingston, 
  under 
  Dr 
  Ami's 
  guidance. 
  Combined 
  work 
  of 
  this 
  sort 
  

   is 
  of 
  the 
  utmost 
  value, 
  and 
  as 
  a 
  result 
  of 
  it 
  the 
  indirect 
  contribu- 
  

   tion 
  of 
  both 
  these 
  gentlemen 
  to 
  this 
  report 
  is 
  most 
  important 
  and 
  

   is 
  gratefully 
  acknowledged. 
  

  

  In 
  a 
  previous 
  year 
  Professor 
  Smyth 
  had 
  reported 
  upon 
  the 
  

   larger 
  part 
  of 
  the 
  district 
  comprised 
  in 
  the 
  Alexandria 
  and 
  Grind- 
  

   stone 
  sheets, 
  as 
  well 
  as 
  their 
  eastward 
  extension, 
  doing 
  the 
  work 
  

   as 
  accurately 
  as 
  the 
  imperfect 
  base 
  map 
  at 
  his 
  disposal 
  war- 
  

   ranted. 
  It 
  is 
  a 
  pleasure 
  to 
  testify 
  to 
  the 
  importance 
  and 
  ac- 
  

   curacy 
  of 
  this 
  report, 
  especially 
  in 
  view 
  of 
  the 
  date 
  at 
  which, 
  

   and 
  the 
  circumstances 
  under 
  w^hich 
  the 
  work 
  wsis 
  done.^ 
  The 
  

   different 
  rock 
  groups 
  and 
  their 
  relations 
  to 
  one 
  another 
  were 
  

   thoroughly 
  worked 
  out, 
  and 
  the 
  independent 
  mapping 
  here 
  re- 
  

   ported 
  upon 
  has 
  done 
  little 
  more 
  than 
  to 
  repeat 
  his 
  work 
  and 
  

   emphasize 
  its 
  correctness. 
  This 
  of 
  itself 
  would 
  justify 
  his 
  ap- 
  

   pearance 
  as 
  a 
  collaborator 
  in 
  this 
  report, 
  independently 
  of 
  his 
  

   direct 
  contribution. 
  

  

  For 
  five 
  weeks 
  of 
  the 
  season 
  of' 
  1908 
  Dr 
  H. 
  N. 
  Eaton 
  of 
  Chapel 
  

   Hill, 
  N. 
  C, 
  served 
  as 
  voluntary 
  assistant. 
  This 
  generously 
  given 
  

   help 
  is 
  gladly 
  acknowledged, 
  and 
  the 
  report 
  also 
  bears 
  witness 
  to 
  

   the 
  service 
  of 
  his 
  camera. 
  

  

  LOCATION 
  AND 
  CHARACTER 
  2 
  

  

  These 
  five 
  quadrangles 
  constitute 
  the 
  extreme 
  northwestern 
  

   portion 
  of 
  northern 
  New 
  York, 
  bordering 
  the 
  lower 
  end 
  of 
  Lake 
  

   Ontario 
  and 
  the 
  St 
  Lawrence 
  river 
  in 
  the 
  Thousand 
  Islands 
  

   region. 
  The 
  area 
  mapped 
  extends 
  from 
  the 
  meridian 
  of 
  75° 
  45'' 
  w. 
  

   longitude 
  to 
  Lake 
  Ontario 
  and 
  from 
  latitude 
  44° 
  to 
  the 
  national 
  

   boundary. 
  It 
  comprises 
  some 
  560 
  square 
  miles. 
  

  

  ^■Geology 
  of 
  the 
  Cr3'stalllne 
  Rocks 
  near 
  the 
  St 
  Lawrence 
  River. 
  N. 
  Y 
  

   State 
  Geol. 
  19th 
  An. 
  Rep't 
  1899. 
  p.r85-io4. 
  

   2 
  By 
  H. 
  P. 
  Gushing. 
  

  

  