﻿CLAYS 
  OF 
  NEW 
  YORK 
  777 
  

  

  DECORATIVE 
  TILE 
  

  

  While 
  many 
  of 
  tlie 
  tile 
  mentioned 
  under 
  the 
  previous 
  head 
  could 
  

   be 
  classed 
  under 
  this 
  one, 
  at 
  the 
  same 
  time 
  it 
  applies 
  more 
  directly 
  

   to 
  those 
  tile 
  which 
  are 
  not 
  only 
  glazed, 
  but 
  also 
  often 
  ornamented 
  

   with 
  raised 
  designs. 
  They 
  are 
  used 
  to 
  a 
  large 
  degree 
  for 
  wains- 
  

   cotting, 
  mantels, 
  soda 
  water 
  fountains, 
  etc. 
  

  

  There 
  is 
  but 
  one 
  factory 
  in 
  this 
  state 
  engaged 
  in 
  the 
  manu- 
  

   facture 
  of 
  glazed 
  tile 
  ; 
  that 
  is 
  the 
  Tarrytown 
  porcelain 
  tile 
  co.'s 
  at 
  

   Tarrytown. 
  

  

  Glazed 
  tile 
  are 
  made 
  by 
  the 
  dry 
  press 
  process. 
  The 
  color 
  of 
  the 
  

   body 
  i^ 
  generally 
  white. 
  The 
  relief 
  of 
  the 
  surface 
  is 
  often 
  very 
  

   prominent, 
  and 
  over 
  this 
  there 
  is 
  usually 
  a 
  heavy 
  coating 
  of 
  colored 
  

   glaze, 
  the 
  variation 
  of 
  the 
  glaze 
  in 
  depth 
  being 
  depended 
  on 
  to 
  

   bring 
  out 
  the 
  decorative 
  effect, 
  as 
  those 
  portions 
  over 
  which 
  the 
  

   glaze 
  is 
  thickest 
  appear 
  the 
  darkest. 
  Glazed 
  tile 
  should 
  show 
  the 
  

   same 
  freedom 
  from 
  warping 
  in 
  drying 
  and 
  burning 
  as 
  those 
  pre- 
  

   viously 
  described; 
  and 
  in 
  addition 
  the 
  glaze 
  should 
  be 
  free 
  from 
  

   cracks 
  or 
  crazes, 
  pin 
  holes 
  and 
  bubbles. 
  

  

  Sometimes 
  colorless 
  glazes 
  are 
  used, 
  at 
  others 
  a 
  tin 
  glaze 
  imparts 
  

   a 
  white 
  opaque 
  covering 
  to 
  the 
  tile. 
  Eor 
  other 
  colors 
  the 
  oxids 
  of 
  

   cobalt, 
  nickel, 
  copper, 
  chromium, 
  manganese, 
  iron 
  or 
  uranium 
  are 
  

   used 
  according 
  to 
  the 
  colors 
  desired. 
  

  

  Methods 
  of 
  decoration. 
  

  

  These 
  have 
  already 
  been 
  referred 
  to 
  in 
  part 
  under 
  the 
  descrip- 
  

   tion 
  of 
  the 
  methods 
  of 
  manufacture. 
  

  

  While 
  the 
  use 
  of 
  natural 
  clays 
  permits 
  the 
  production 
  of 
  a 
  con- 
  

   siderable 
  range 
  of 
  colors, 
  nevertheless 
  these 
  fall 
  far 
  short 
  of 
  the 
  

   ambition 
  of 
  the 
  ceramic 
  chemist 
  and 
  the 
  demands 
  of 
  the 
  architect. 
  

  

  As 
  the 
  use 
  of 
  artificial 
  coloriAg 
  materials 
  is 
  often 
  expensive, 
  the 
  

   color 
  decoration 
  is 
  applied 
  to 
  the 
  surface 
  of 
  the 
  ware 
  only, 
  instead 
  

   of 
  allowing 
  the 
  design 
  to 
  extend 
  through 
  the 
  body. 
  

  

  