﻿616 
  , 
  NEW 
  YOEK 
  STATE 
  MUSEUM 
  

  

  zoic 
  age, 
  h) 
  alluvial 
  clays 
  along 
  the 
  streams, 
  c) 
  drift 
  clays 
  of 
  north- 
  

   ern 
  and 
  central 
  Indiana. 
  

  

  The 
  clays 
  of 
  the 
  coal-bearing 
  counties 
  support 
  an 
  active 
  and 
  rising 
  

   industry, 
  and 
  these 
  are 
  found 
  in 
  the 
  following 
  counties. 
  Fountain, 
  

   Vermilion, 
  Parke, 
  Vigo, 
  Clay, 
  Owen, 
  Sullivan, 
  Greene, 
  Knox, 
  

   Daviess, 
  Martin, 
  Dubois, 
  Pike, 
  Gibson, 
  Vanderburg, 
  Warwick, 
  

   Spencer 
  and 
  Perry. 
  

  

  The 
  following 
  represents 
  a 
  typical 
  section 
  from 
  the 
  Indiana 
  Coal 
  

   Measures. 
  

  

  Ft 
  In. 
  

  

  1 
  Soil 
  and 
  surface 
  drift 
  clay 
  9 
  

  

  2 
  Blue 
  compact 
  shale 
  27 
  

  

  3 
  Dark 
  bituminous 
  shale 
  3 
  2 
  

  

  4: 
  Coal 
  2 
  7 
  

  

  5 
  Fire 
  clay 
  4 
  4 
  

  

  6 
  Drab 
  siliceous 
  shale 
  18 
  

  

  7 
  Sandstone 
  6 
  3 
  

  

  8 
  Dark 
  bituminous 
  shale 
  1 
  

  

  9 
  Coal 
  4 
  8 
  

  

  10 
  Fire 
  clay 
  3 
  10 
  

  

  The 
  fire 
  clays 
  no. 
  5 
  and 
  10 
  are 
  universally 
  present, 
  l^o. 
  2 
  and 
  

   6 
  are 
  considered, 
  taken 
  as 
  a 
  whole, 
  to 
  be 
  the 
  most 
  valuable 
  clay 
  

   beds 
  in 
  the 
  state. 
  

  

  Important 
  clay 
  deposits 
  also 
  occur 
  in 
  the 
  counties 
  of 
  Benton, 
  

   Newton, 
  Jasper, 
  Starke, 
  Lake, 
  Porter, 
  La 
  Porte 
  and 
  St 
  Joseph. 
  

  

  Those 
  of 
  Benton 
  co. 
  are 
  of 
  glacial 
  origin, 
  as 
  are 
  those 
  of 
  E^ewton 
  

   CO.; 
  most 
  of 
  the 
  other 
  counties 
  mentioned 
  contain 
  glacial 
  clays. 
  

   The 
  Porter 
  co. 
  clays 
  are 
  both 
  glacial 
  and 
  marly. 
  The 
  latter 
  are 
  

   made 
  into 
  pressed 
  brick 
  by 
  hydraulic 
  brick 
  machines. 
  Around 
  

   South 
  Bend 
  and 
  St 
  Joseph 
  co. 
  are 
  thick 
  deposits 
  of 
  pearl 
  gray, 
  

   marly 
  clay 
  of 
  a 
  very 
  fine 
  grain 
  and 
  plastic 
  nature, 
  which 
  burn 
  to 
  a 
  

   light 
  yellow 
  building 
  brick 
  or 
  a 
  greenish 
  yellow 
  paving 
  brick. 
  

  

  