﻿CLAYS 
  OF 
  NEW 
  YORK 
  741 
  

  

  The 
  company 
  has 
  recently 
  begun 
  to 
  use 
  a 
  white 
  burning 
  clay 
  ob- 
  

   tained 
  near 
  West 
  Deerpark, 
  formerly 
  used 
  in 
  the 
  brickworks 
  at 
  that 
  

   locality. 
  

  

  In 
  July 
  1899, 
  a 
  large 
  opening 
  had 
  been 
  made 
  at 
  the 
  base 
  of 
  

   the 
  hill 
  about 
  half 
  a 
  mile 
  northwest 
  of 
  West 
  Deerpark 
  station. 
  

   The 
  section 
  exposed 
  at 
  that 
  time 
  showed 
  : 
  

  

  Yellow 
  gravel 
  4 
  feet 
  

  

  Black 
  clay, 
  with 
  some 
  yellow 
  streaks 
  4 
  '^ 
  

  

  Black 
  clay 
  with 
  white 
  sand 
  in 
  streaks 
  4 
  ^' 
  

  

  Sand 
  2 
  " 
  

  

  14 
  " 
  

  

  The 
  clay 
  is 
  loaded 
  on 
  carts 
  and 
  hauled 
  to 
  a 
  siding 
  about 
  500 
  

   feet 
  distant, 
  whence 
  it 
  is 
  taken 
  by 
  train 
  to 
  the 
  works. 
  About 
  600 
  

   feet 
  east 
  of 
  the 
  present 
  bank, 
  a 
  second 
  one 
  is 
  being 
  opened 
  up. 
  

   The 
  same 
  clay 
  also 
  crops 
  out 
  at 
  the 
  base 
  of 
  the 
  embankment, 
  where 
  

   the 
  road 
  from 
  Farmingdale 
  to 
  the 
  Garden 
  City 
  brick 
  co.'s 
  works 
  

   crosses 
  the 
  railroad 
  siding 
  leading 
  up 
  to 
  the 
  works. 
  

  

  There 
  is 
  probably 
  an 
  abundance 
  of 
  this 
  clay 
  between 
  Farming- 
  

   dale 
  and 
  Wyandance, 
  but 
  at 
  most 
  places 
  there 
  is 
  a 
  heavy 
  over- 
  

   burden 
  of 
  sand 
  and 
  yellow 
  gravel, 
  usually 
  not 
  less 
  than 
  15 
  feet, 
  

   except 
  at 
  the 
  pit 
  from 
  which 
  clay 
  is 
  now 
  being 
  dug. 
  

  

  The 
  highly 
  sandy 
  nature 
  of 
  the 
  clay 
  is 
  indicated 
  by 
  a 
  mechanical 
  

   an^ysis 
  of 
  the 
  material 
  which 
  yielded: 
  

  

  Fine 
  sand 
  84^ 
  

  

  Clay 
  substance 
  and 
  silt 
  16fc 
  

  

  100,^' 
  

  

  All 
  of 
  the 
  sand 
  passed 
  through 
  a 
  100 
  mesh 
  sieve. 
  In 
  spite 
  of 
  its 
  

   highly 
  silicious 
  nature 
  the 
  clay 
  is 
  fairly 
  plastic, 
  and 
  23 
  fo 
  of 
  water 
  

   was 
  required 
  to 
  work 
  it 
  up. 
  Scattered 
  through 
  the 
  clay 
  are 
  scales 
  

   of 
  mica, 
  and 
  occasional 
  grains 
  of 
  pyrite. 
  The 
  shrinkage 
  in 
  drying 
  

   is 
  8fc', 
  up 
  to 
  cone 
  3, 
  11^, 
  and 
  cone 
  6, 
  15;/. 
  At 
  the 
  former 
  cone 
  the 
  

  

  