﻿28 
  

  

  ECONOMICAL 
  GEOLOGY. 
  

  

  Feet. 
  

  

  30 
  

  

  No. 
  is. 
  Clay 
  shale 
  7 
  

  

  No. 
  19- 
  Limestone 
  26 
  

  

  No. 
  20. 
  Clay 
  shale 
  3 
  

  

  No. 
  21. 
  Sandstone 
  

  

  No. 
  22. 
  Olay 
  shale 
  l 
  

  

  No. 
  23. 
  Limestone 
  | 
  

  

  ji. 
  Black 
  slate 
  10 
  

  

  No. 
  25. 
  Clay 
  shale 
  2 
  

  

  No. 
  26. 
  Limestone 
  ' 
  34 
  

  

  No. 
  27. 
  Clay 
  shale 
  4 
  

  

  No. 
  28. 
  Sandy 
  shale 
  85 
  

  

  No. 
  29. 
  Light 
  gray, 
  sandy 
  shale 
  " 
  '""' 
  

  

  No.30. 
  Sandy 
  shale 
  "'" 
  2 
  

  

  No. 
  31. 
  Clay 
  shale 
  in'.i 
  

  

  No. 
  32. 
  Sandy 
  shale 
  and 
  sandstone 
  

  

  775 
  

  

  Total 
  depth 
  

  

  Harvel 
  is 
  about 
  fifteen 
  miles 
  N.NE. 
  of 
  Litchfield, 
  in 
  Montgomery 
  

   county, 
  and 
  on 
  comparing 
  the 
  above 
  boring 
  with 
  the 
  shaft 
  and 
  

   borin* 
  at 
  the 
  latter 
  locality, 
  given 
  on 
  a 
  subsequent 
  page, 
  it 
  v« 
  11 
  be 
  

   seenlhat 
  there 
  i. 
  no 
  correspondence 
  worthy 
  of 
  note 
  between 
  ta. 
  

   The 
  thinning 
  out 
  and 
  consequent 
  disappearance 
  of 
  a 
  eoa 
  earn 
  m 
  

   certain 
  localities 
  is 
  not 
  on 
  unusual 
  occurrence 
  but 
  the 
  entire 
  

   absence 
  of 
  a 
  half 
  dozen 
  seams 
  where 
  they 
  might 
  be 
  expected 
  to 
  

   occur 
  is 
  quite 
  an 
  extraordinary 
  occurrence. 
  

  

  For 
  the 
  following 
  record 
  of 
  the 
  escapement 
  shaft 
  at 
  Dawson, 
  in 
  

   Sangamon 
  county, 
  sunk 
  by 
  the 
  Wabash 
  Coal 
  Company. 
  I 
  a,n 
  in- 
  

   debted 
  to 
  Mr. 
  Thomas 
  P. 
  Mowitt 
  : 
  ^ 
  fa 
  

  

  1*1 
  

  

  No. 
  1. 
  Surface 
  soil, 
  clay 
  and 
  Band 
  lu 
  - 
  

  

  No. 
  2. 
  Clay 
  shale, 
  with 
  hands 
  of 
  hard 
  rock 
  '•••" 
  g 
  

  

  No. 
  B. 
  l'.liie 
  shale 
  1 
  

  

  No. 
  4. 
  Bard 
  .-..n^lomerate 
  

  

  N,,. 
  :,. 
  Fire-clay 
  in 
  

  

  N,,. 
  id. 
  Red 
  shale 
  ; 
  

  

  No. 
  11. 
  Baatard 
  slate 
  „ 
  1 
  

  

  12. 
  Coal 
  N0.6 
  """" 
  

  

  No. 
  13. 
  Blre-olay 
  

  

  No. 
  14. 
  Bard 
  brown 
  rook 
  

  

  v. 
  [6. 
  Bard 
  gray 
  Bandstone 
  

  

  No. 
  16. 
  OlayBhale 
  ! 
  

  

  No, 
  it. 
  1. 
  hi. 
  i 
  1 
  

  

  N... 
  is. 
  Blaok 
  slate 
  

  

  No. 
  18 
  ' 
  

  

  l 
  

  

  Total 
  depth 
  

  

  Daw** 
  .s 
  55 
  feet 
  above 
  the 
  statu... 
  at 
  Biverton, 
  where 
  the 
  River- 
  

   toncoalshaft 
  is 
  located, 
  and 
  aa 
  the 
  depth 
  of 
  the 
  Daw^n 
  shaft 
  was 
  

   wagnot 
  deep 
  enough 
  to 
  alio* 
  tor 
  the 
  average 
  dip 
  of 
  the 
  coal 
  to.be 
  

  

  