﻿FOURTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  igoy 
  2J 
  

  

  at 
  and 
  south 
  of 
  Xorthville. 
  Most 
  of 
  Xorthville 
  village 
  lies 
  upon 
  a 
  

   flat 
  table 
  which 
  is 
  a 
  remnant 
  of 
  this 
  delta. 
  The 
  delta 
  can 
  be 
  traced 
  

   for 
  about 
  a 
  mile 
  north 
  of 
  Northville 
  heading 
  against 
  the 
  great 
  

   recessional 
  moraine 
  to 
  which 
  reference 
  has 
  already 
  been 
  made. 
  

   South 
  of 
  Xorthville 
  it 
  has 
  been 
  largely 
  dissected 
  and 
  much 
  of 
  it 
  

   swept 
  away 
  by 
  the 
  Sacandaga 
  river. 
  Slight 
  remnants 
  are 
  seen 
  on 
  

   the 
  east 
  of 
  the 
  river 
  but 
  the 
  major 
  parts 
  of 
  it 
  are 
  on 
  the 
  west. 
  Be- 
  

   ginning 
  with 
  the 
  flat 
  sandy 
  area 
  on 
  which 
  the 
  resort 
  known 
  as 
  

   Sacandaga 
  Park 
  is 
  situated 
  and 
  extending 
  southward 
  to 
  a 
  point 
  

   eastward 
  from 
  Cranberry 
  creek 
  and 
  past 
  Ogden's 
  creek 
  toward 
  

   Northampton 
  some 
  small 
  areas 
  of 
  till 
  emerge 
  from 
  the 
  silts 
  of 
  the 
  

   delta 
  near 
  its 
  edge 
  and 
  from 
  Sacandaga 
  Park 
  to 
  Osborne's 
  bridge 
  

   much 
  of 
  the 
  old 
  delta 
  area 
  is 
  occupied 
  by 
  terraces 
  and 
  flat 
  plains 
  

   and 
  old 
  channels 
  of 
  the 
  Sacandaga 
  river. 
  

  

  Lake 
  deposits 
  of 
  the 
  Mohawk 
  valley. 
  These 
  include 
  conspicuous 
  

   deposits 
  of 
  sand, 
  silts, 
  clay 
  and 
  gravel 
  at 
  altitudes 
  varying 
  from 
  

   440 
  to 
  zj6o 
  feet, 
  in 
  some 
  cases 
  a 
  little 
  higher. 
  These 
  are 
  found 
  

   about 
  the 
  Lower 
  Cayadutta 
  and 
  west 
  of 
  Fonda. 
  They 
  extend 
  from 
  

   Fultonville 
  to 
  the 
  Schoharie 
  creek 
  south 
  of 
  the 
  river. 
  They 
  are 
  

   found 
  conspicuously 
  along 
  the 
  north 
  side 
  of 
  the 
  river 
  and 
  east 
  and 
  

   west 
  of 
  Tribes 
  Hill. 
  They 
  also 
  appear 
  at 
  the 
  golf 
  grounds 
  of 
  the 
  

   Antlers 
  Club 
  and 
  along 
  the 
  river 
  on 
  the 
  north 
  side 
  of 
  Amsterdam, 
  

   and 
  east 
  and 
  west 
  around 
  Port 
  Jackson. 
  These 
  deposits 
  are 
  con- 
  

   spicuous 
  and 
  they 
  are 
  to 
  be 
  seen 
  at 
  Hoffmans 
  Ferry. 
  In 
  the 
  great 
  

   delta 
  on 
  the 
  north 
  side 
  there 
  are 
  minor 
  exhibitions 
  of 
  them 
  south- 
  

   eastward 
  to 
  Rotterdam 
  or 
  a 
  little 
  beyond. 
  These 
  silts 
  and 
  sands 
  

   evidently 
  represent 
  waters 
  at 
  an 
  altitude 
  of 
  from 
  440 
  to 
  460 
  feet 
  

   and 
  the 
  determination 
  of 
  a 
  barrier 
  by 
  which 
  such 
  waters 
  should 
  be 
  

   maintained 
  has 
  been 
  one 
  of 
  the 
  most 
  puzzling 
  questions 
  of 
  the 
  in- 
  

   vestigation. 
  No 
  entirely 
  satisfactory 
  answer 
  is 
  at 
  hand, 
  but 
  it 
  is 
  

   the 
  best 
  belief 
  of 
  the 
  writer 
  that 
  the 
  barrier 
  w 
  r 
  as 
  ice 
  in 
  the 
  vicinity 
  

   of 
  Schenectady. 
  It 
  is 
  not 
  necessary 
  to 
  believe 
  that 
  the 
  entire 
  strip 
  

   of 
  the 
  valley 
  from 
  Schenectady 
  westward 
  was 
  in 
  the 
  earlier 
  stage 
  

   occupied 
  by 
  these 
  waters 
  continuously, 
  for 
  at 
  some 
  points 
  in 
  the 
  

   vicinity 
  of 
  Amsterdam, 
  for 
  example, 
  there 
  are 
  the 
  accustomed 
  clays 
  

   containing 
  scratched 
  stones 
  and 
  there 
  are 
  sands 
  and 
  gravels 
  of 
  

   such 
  irregular 
  character 
  as 
  to 
  lead 
  to 
  the 
  conviction 
  that 
  the 
  waters 
  

   in 
  which 
  they 
  w 
  T 
  ere 
  deposited 
  were 
  in 
  the 
  immediate 
  presence 
  of 
  ice, 
  

   which 
  could 
  have 
  been 
  no 
  other 
  than 
  a 
  local 
  remnant 
  ice 
  tongue 
  

   extending 
  up 
  the 
  valley 
  from 
  the 
  main 
  glacier 
  which 
  still 
  lingered 
  

   in 
  the 
  region 
  of 
  the 
  middle 
  Hudson. 
  These 
  deposits 
  at 
  similar 
  

  

  