﻿The 
  manner 
  in 
  whicli 
  t]ie 
  'New 
  York 
  stet© 
  museum 
  bulletin 
  no. 
  

   12, 
  entitled 
  Clay 
  industries 
  of 
  New 
  Yorh, 
  was 
  received 
  by 
  

   the 
  public, 
  indicated 
  that 
  the 
  subject 
  was 
  of 
  interest 
  to 
  a 
  large 
  

   number 
  of 
  persons 
  and 
  it 
  therefore 
  seemed 
  important, 
  as 
  soon 
  as 
  

   the 
  means 
  were 
  available, 
  to 
  thoroughly 
  revise 
  this 
  bulletin 
  and 
  

   bring 
  it 
  up 
  to 
  date 
  so 
  a^ 
  to 
  cover 
  the 
  great 
  progress 
  mad© 
  in 
  this 
  

   manufacturing 
  industry. 
  Dr 
  Heinrich 
  Eies 
  has 
  accordingly 
  devoted 
  

   himself 
  to 
  this 
  work 
  of 
  revision 
  and 
  after 
  much 
  careful 
  labor 
  has 
  

   produced 
  the 
  work 
  now 
  submitted 
  to 
  the 
  public. 
  The 
  chapter 
  on 
  

   the 
  physical 
  properties 
  of 
  clay 
  should 
  b© 
  of 
  particular 
  value, 
  since 
  

   Dr 
  Ries 
  has 
  made 
  a 
  special 
  visit 
  toi 
  Berlin 
  for 
  the 
  purpose 
  of 
  in- 
  

   vestigating 
  this 
  subject 
  in 
  relation 
  to 
  th© 
  clays 
  of 
  Europe. 
  

  

  Feederick 
  J. 
  H. 
  Merrill 
  

  

  Neiu 
  York 
  state 
  museum 
  Director. 
  

  

  Albany 
  N. 
  Y. 
  

   1899 
  

  

  