﻿CLAYS 
  OF 
  NEW 
  YORK 
  Y05 
  

  

  adjoin 
  each 
  other. 
  The 
  one 
  nearest 
  town 
  belongs 
  to 
  Sutton 
  & 
  

   Suderly, 
  and 
  is 
  worked 
  by 
  them 
  and 
  four 
  other 
  persons. 
  Their 
  

   clay 
  is 
  obtained 
  from 
  the 
  bank 
  west 
  of 
  the 
  yard. 
  It 
  is 
  both 
  blue 
  

   and 
  yellow, 
  chiefly 
  the 
  former, 
  with 
  streaks 
  of 
  fine 
  sand. 
  

  

  The 
  following 
  partial 
  analysis 
  has 
  been 
  made 
  of 
  Sutton 
  & 
  Sud- 
  

   erly's 
  clay. 
  

  

  Silica 
  51.10 
  

  

  Alumina 
  17 
  . 
  65 
  

  

  Peroxid 
  of 
  iron 
  6 
  , 
  47 
  

  

  Lime 
  . 
  7.45 
  

  

  Magnesia 
  .87 
  

  

  Being 
  of 
  a 
  soft 
  nature, 
  the 
  clay 
  is 
  dug 
  with 
  shovels 
  at 
  any 
  con- 
  

   venient 
  point 
  at 
  the 
  base 
  of 
  the 
  bank, 
  which 
  is 
  120 
  feet 
  in 
  hight. 
  

   A 
  charge 
  of 
  dynamite 
  is 
  usually 
  exploded 
  in 
  the 
  bank 
  in 
  the 
  spring, 
  

   thus 
  bringing 
  down 
  a 
  large 
  mass 
  of 
  clay 
  to 
  a 
  level 
  with 
  the 
  yard. 
  

   The 
  clay 
  does 
  not 
  have 
  to 
  be 
  hauled 
  more 
  than 
  150 
  feet 
  to 
  the 
  

   machines. 
  A 
  drivepipe 
  well 
  sunk 
  near 
  the 
  owners' 
  barn 
  on 
  top 
  

   of 
  the 
  terrace 
  (140 
  feet 
  above 
  mean 
  tide) 
  some 
  300 
  feet 
  back 
  from 
  

   the 
  river, 
  showed 
  70 
  feet 
  of 
  clay 
  and 
  60 
  feet 
  ol 
  sand. 
  The 
  sand 
  

   underlying 
  the 
  clay 
  is 
  of 
  a 
  grayish 
  black 
  color, 
  consisting 
  chiefly 
  of 
  

   grains 
  of 
  quartz 
  and 
  shale, 
  the 
  latter 
  predominating.-^ 
  Grains 
  of 
  

   garnet 
  and 
  feldspar, 
  and 
  large 
  pebbles 
  of 
  quartz 
  are 
  scattered 
  

   through 
  it. 
  The 
  sand 
  after 
  being 
  screened 
  is 
  used 
  for 
  tempering. 
  

   The 
  upper 
  limit 
  of 
  the 
  underlying 
  sand 
  varies, 
  at 
  the 
  north 
  end 
  of 
  

   the 
  property 
  rising 
  to 
  within 
  a 
  few 
  feet 
  of 
  the 
  terrace 
  level, 
  while 
  

   some 
  300 
  feet 
  south 
  of 
  this 
  the 
  clay 
  has 
  been 
  excavated 
  to 
  15 
  feet 
  

   above 
  mean 
  tide 
  without 
  striking 
  sand. 
  

  

  Adjoining 
  Sutton 
  & 
  Suderly 
  on 
  the 
  north 
  are 
  the 
  brick 
  works 
  of 
  

   Corwin 
  & 
  Cullough, 
  sublet 
  by 
  them 
  to 
  T. 
  Finnegan 
  and 
  Delaney 
  

   & 
  Lavender. 
  The 
  clay, 
  which 
  is 
  obtained 
  just 
  west 
  of 
  the 
  yard, 
  

   has 
  been 
  excavated 
  to 
  7 
  feet 
  above 
  mean 
  tide 
  and 
  bottom 
  not 
  yet 
  

  

  1 
  This 
  underlying 
  material 
  is 
  much 
  faulted 
  owing 
  to 
  the 
  pressure 
  of 
  the 
  

   clay 
  above 
  it. 
  

  

  