﻿614 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  the 
  important 
  lines 
  of 
  the 
  clay-working 
  ind"ustry 
  of 
  the 
  west, 
  and 
  

   those 
  well 
  made 
  bear 
  an 
  excellent 
  reputation; 
  indeed 
  the 
  Denver 
  

   fire 
  clav 
  crucibles 
  are 
  considered 
  by 
  many 
  to 
  be 
  fully 
  equal 
  to 
  the 
  

   English. 
  

  

  Connecticut 
  

  

  Sedimentary 
  clays 
  of 
  Quaternary 
  age 
  are 
  found 
  in 
  many 
  of 
  the 
  

   valleys 
  in 
  great 
  abundance; 
  they 
  resemble 
  in 
  character 
  those 
  of 
  the 
  

   Hudson 
  valley, 
  and 
  northern 
  !N'ew 
  Jersey. 
  They 
  form 
  the 
  basis 
  

   of 
  an 
  important 
  industry, 
  specially 
  in 
  the 
  Connecticut 
  valley. 
  

  

  The 
  clay 
  products 
  manufactured 
  in 
  Connecticut 
  are 
  with 
  the 
  

   exception 
  of 
  building 
  brick 
  made 
  chiefly 
  from 
  clays 
  obtained 
  from 
  

   other 
  states. 
  

  

  Delarvare 
  

   Kaolin 
  of 
  excellent 
  quality 
  is 
  extensively 
  mined 
  at 
  Hockessin, 
  

  

  N^ewcastle 
  co. 
  ; 
  fire 
  clays 
  of 
  Cretaceous 
  age 
  have 
  also 
  been 
  worked 
  

   in 
  the 
  state. 
  

  

  The 
  Columbian 
  formation 
  affords 
  an 
  abundant 
  supply 
  of 
  brick 
  

   clays. 
  

  

  Florida 
  

   The 
  clay 
  resources 
  of 
  Florida 
  may 
  be 
  grouped 
  under 
  three 
  heads, 
  

   i. 
  e. 
  kaolins, 
  common 
  brick 
  clays, 
  and 
  fullers' 
  earth. 
  The 
  kaolins 
  

   are 
  not 
  such 
  in 
  the 
  true 
  sense 
  but 
  are 
  really 
  sedimentary 
  clays, 
  but 
  

   they 
  have 
  a 
  high 
  degree 
  of 
  purity. 
  Two 
  important 
  deposits 
  of 
  this 
  

   material 
  are 
  at 
  present 
  known 
  to 
  exist 
  in 
  the 
  state. 
  The 
  first 
  of 
  

   these 
  at 
  Edgar, 
  Ela., 
  where 
  the 
  bed 
  of 
  ball 
  clay 
  mined 
  is 
  more 
  

   than 
  30 
  feet 
  thick; 
  the 
  other 
  deposit 
  occurs 
  near 
  Lake 
  City, 
  and 
  

   extends 
  along 
  the 
  Palatlakaha 
  river 
  for 
  a 
  distance 
  of 
  about 
  4 
  

   miles. 
  This 
  deposit 
  has 
  been 
  but 
  little 
  mined. 
  This 
  plastic 
  ball 
  

   clay 
  consists 
  of 
  about 
  75^ 
  of 
  quartz 
  pebbles, 
  and 
  25^ 
  of 
  clay 
  sub- 
  

   stance. 
  The 
  quartz 
  is 
  easily 
  washed 
  out, 
  leaving 
  a 
  very 
  pure 
  

   product, 
  which 
  is 
  shipped 
  north 
  and 
  used 
  by 
  many 
  of 
  the 
  manu- 
  

   facturers 
  of 
  white 
  earthenware. 
  

  

  