﻿586 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  not 
  extending 
  more 
  than 
  4 
  feet 
  above 
  tide, 
  and 
  overlain 
  bj 
  

   an 
  unstratified 
  layer 
  5 
  feet 
  thick, 
  of 
  coarse 
  sand 
  and 
  cobblestones^ 
  

   mostly 
  gneiss. 
  

  

  From 
  Stormking 
  station 
  to 
  Dutchess 
  Junction 
  there 
  is 
  a 
  stretch 
  

   of 
  terrace, 
  which 
  extends 
  back 
  to 
  the 
  foot 
  of 
  Breakneck 
  and 
  Fish- 
  

   kill 
  mountains. 
  The 
  maximum 
  hight 
  of 
  it 
  is 
  210 
  feet. 
  Yarious 
  

   firms 
  are 
  digging 
  clay 
  in 
  the 
  terrace 
  escarpment 
  the 
  greater 
  part 
  

   of 
  its 
  length. 
  A 
  well 
  of 
  65 
  feet 
  sunk 
  at 
  Aldridge's 
  yard 
  from 
  

   tide 
  level 
  still 
  showed 
  clay, 
  and 
  adding 
  to 
  this 
  65 
  feet 
  of 
  clay 
  above 
  

   the 
  river 
  level 
  gives 
  us 
  a 
  thickness 
  of 
  130 
  feet 
  at 
  this 
  point. 
  The 
  

   character 
  and 
  thickness 
  of 
  the 
  overlying 
  material 
  varies 
  somewhat. 
  

   To 
  the 
  rear 
  of 
  Timoney's 
  yard 
  some 
  700 
  feet, 
  the 
  terrace 
  has 
  been 
  

   excavated 
  to 
  a 
  depth 
  of 
  30 
  feet, 
  exposing 
  a 
  mass 
  of 
  coarse 
  sand, 
  

   gravel 
  and 
  cobblestones, 
  mostly 
  granites, 
  gneisses 
  and 
  schists. 
  One 
  

   portion 
  of 
  it 
  is 
  stratified, 
  and 
  at 
  the 
  base 
  of 
  the 
  excavation 
  at 
  one 
  

   point 
  yellow 
  clay 
  has 
  been 
  found. 
  At 
  Timoney's 
  yard 
  there 
  is 
  1 
  

   or 
  2 
  feet 
  of 
  loam 
  overlying 
  the 
  clay 
  and 
  a 
  growth 
  of 
  brush 
  

   covers 
  the 
  terrace. 
  At 
  Van 
  Buren's 
  yard 
  the 
  upper 
  layers 
  of 
  clay 
  

   alternate 
  with 
  layers 
  of 
  sand; 
  the 
  upper 
  6 
  feet 
  of 
  the 
  terrace 
  at 
  

   this 
  point 
  is 
  gravel, 
  the 
  pebbles 
  of 
  it 
  being 
  mostly 
  granite 
  and 
  

   gneisses. 
  At 
  Aldridge's 
  yard 
  the 
  clay 
  is 
  covered 
  by 
  6 
  to 
  8 
  feet 
  

   of 
  unstratified 
  gravel 
  and 
  sand, 
  while 
  at 
  another 
  spot 
  on 
  top 
  of 
  

   this 
  bank 
  is 
  12 
  or 
  15 
  feet 
  of 
  fine 
  yellow 
  sand, 
  which 
  sho^vs 
  no 
  

   stratification. 
  The 
  upper 
  layers 
  of 
  Barnacue 
  & 
  Dow's 
  clay 
  are 
  

   like 
  those 
  at 
  Van 
  Buren's, 
  but 
  covered 
  by 
  4 
  feet 
  of 
  sand 
  and 
  over 
  

   this 
  in 
  places 
  6 
  to 
  8 
  feet 
  of 
  coarse 
  gravel. 
  Nothing 
  is 
  known 
  of 
  

   the 
  underlying 
  material 
  at 
  these 
  yards. 
  

  

  The 
  whole 
  of 
  Denning's 
  point 
  is 
  covered 
  with 
  a 
  fine 
  stratified 
  

   yellowish 
  sand. 
  The 
  clay, 
  which 
  lies 
  at 
  the 
  base 
  of 
  the 
  point, 
  

   has 
  a 
  thin 
  covering 
  of 
  loam, 
  and 
  the 
  upper 
  layers 
  are 
  somewhat 
  

   wrinkled. 
  

  

  There 
  is 
  another 
  stretch 
  of 
  terrace 
  similar 
  to 
  that 
  below 
  

   Dutchess 
  Junction 
  and 
  of 
  the 
  same 
  hight, 
  extending 
  from 
  one 
  

   half 
  mile 
  above 
  Fishkill 
  to 
  Low 
  point. 
  At 
  most 
  places 
  the 
  clay 
  

   is 
  covered 
  by 
  a 
  few 
  feet 
  of 
  loamy 
  soil. 
  Several 
  boulders 
  have 
  

   been 
  found 
  in 
  the 
  clay 
  at 
  Brockway's 
  yard. 
  Several 
  feet 
  of 
  loam 
  

  

  