﻿702 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  H. 
  E.. 
  Rose's 
  brick 
  yard 
  is 
  also 
  situated 
  in 
  this 
  town 
  and 
  about 
  

   3 
  miles 
  east 
  of 
  tbe 
  Hudson 
  river. 
  Tbe 
  clay 
  deposit, 
  which 
  has 
  

   an 
  extent 
  of 
  60 
  acres, 
  is 
  yellow 
  in 
  color 
  and 
  8 
  feet 
  thick. 
  A 
  blue 
  

   clay 
  is 
  said- 
  to 
  underlie 
  the 
  yellow. 
  The 
  bricks 
  are 
  molded 
  in 
  soft 
  

   mud 
  machines 
  operated 
  by 
  horse 
  power. 
  

  

  Barrytown, 
  Dutchess 
  co. 
  There 
  are 
  deposits 
  of 
  clay 
  along 
  the 
  

   river 
  at 
  this 
  locality 
  but 
  they 
  are 
  not 
  being 
  worked. 
  The 
  following 
  

   is 
  an 
  analysis 
  of 
  them. 
  

  

  Silica 
  59 
  . 
  81 
  

  

  Peroxid 
  of 
  iron 
  and 
  alumina. 
  22 
  . 
  00 
  

  

  Lime 
  4.35 
  

  

  Magnesia 
  2.29 
  

  

  Moisture 
  , 
  .37 
  

  

  Combined 
  water 
  and 
  organic 
  matter 
  7. 
  89 
  

  

  Alkalis, 
  not 
  determined 
  

  

  96.71 
  

  

  Catshill, 
  Greene 
  co. 
  Alexander 
  McLean's 
  yard 
  is 
  situated 
  on 
  

   Water 
  st., 
  east 
  of 
  the 
  wagon 
  bridge. 
  He 
  has 
  12 
  acres 
  of 
  clay 
  

   land. 
  The 
  clay 
  is 
  mostly 
  blue 
  with 
  yellow 
  and 
  red 
  on 
  top, 
  and 
  

   is 
  about 
  90 
  feet 
  thick. 
  

  

  A 
  partial 
  analysis 
  of 
  the 
  blue 
  clay 
  is 
  as 
  follows: 
  

  

  Silica 
  50 
  . 
  60 
  

  

  Alumina 
  21 
  .00 
  

  

  Peroxid 
  of 
  iron 
  7.35 
  

  

  Lime 
  3.75 
  

  

  Magnesia 
  .96 
  

  

  The 
  upper 
  portion 
  of 
  the 
  clay 
  bank 
  is 
  a 
  tough 
  material 
  and 
  has 
  

   to 
  be 
  worked 
  with 
  a 
  pick. 
  A 
  gray 
  black 
  sand 
  of 
  the 
  same 
  struo- 
  

   ture 
  and 
  appearance 
  as 
  that 
  at 
  Coeymans 
  underlies 
  the 
  clay. 
  At 
  

   this 
  locality, 
  however, 
  it 
  contains 
  too 
  much 
  lime 
  to 
  use 
  it 
  for 
  tem- 
  

   pering. 
  Mr 
  McLean 
  has 
  to 
  bring 
  his 
  tempering 
  sand 
  from 
  Jones- 
  

  

  