﻿COAL 
  MEASURES. 
  19 
  

  

  Ft. 
  In. 
  

  

  No. 
  63. 
  Coal 
  6 
  

  

  No. 
  64. 
  Blue 
  and 
  gray 
  shales 
  14 
  5 
  

  

  No. 
  65. 
  Marly 
  sandstone 
  1 
  c 
  

  

  No. 
  66. 
  Calcareous 
  shale 
  5 
  

  

  No. 
  67. 
  Sandstone 
  15 
  

  

  No, 
  68. 
  Grayslate 
  5 
  9 
  

  

  No. 
  69. 
  Bituminous 
  shale 
  2 
  3 
  

  

  No. 
  70. 
  Coal 
  3 
  6 
  

  

  No. 
  71. 
  Fire-clay 
  2 
  

  

  Total 
  depth 
  608 
  9 
  

  

  No. 
  22 
  is 
  probably 
  the 
  Carlinville 
  limestone, 
  and 
  No. 
  35 
  the 
  rep- 
  

   resentative 
  of 
  No. 
  8 
  coal, 
  and 
  beyond 
  this 
  the 
  strata 
  cannot 
  be 
  

   positively 
  identified 
  with 
  those 
  occurring 
  at 
  other 
  localities 
  in 
  the 
  

   adjacent 
  portions 
  of 
  the 
  State. 
  

  

  In 
  the 
  Niantic 
  shaft, 
  coal 
  No. 
  5 
  was 
  found 
  at 
  the 
  depth 
  of 
  about 
  

   350 
  feet. 
  The 
  seam 
  was 
  there 
  five 
  and 
  a 
  half 
  feet 
  in 
  thickness, 
  

   overlaid 
  by 
  three 
  feet 
  of 
  black 
  shale. 
  The 
  following 
  record 
  of 
  the 
  

   shaft 
  was 
  furnished 
  by 
  Mr. 
  W. 
  W. 
  Conard, 
  under 
  whose 
  superin- 
  

   tendence 
  the 
  work 
  was 
  done 
  : 
  

  

  Ft. 
  In. 
  

  

  No. 
  1. 
  Soil 
  and 
  brown 
  clay 
  11 
  

  

  No. 
  2. 
  Sand 
  and 
  gravel 
  4 
  

  

  No. 
  3. 
  Gravelly 
  hard-pan 
  25 
  

  

  No. 
  4. 
  Blue 
  hard-pan 
  10 
  

  

  No. 
  5. 
  Soft 
  clay 
  15 
  

  

  No. 
  6. 
  Gray 
  hard-pan 
  10 
  

  

  No. 
  7. 
  Soft 
  brown 
  clay 
  7 
  

  

  No. 
  8. 
  Limestone... 
  10 
  

  

  No. 
  9. 
  Blue 
  flinty 
  rock 
  2 
  

  

  No. 
  10. 
  Black 
  slate 
  3 
  

  

  No. 
  U. 
  Fire-clay 
  6 
  

  

  No. 
  12. 
  Limestone 
  10 
  

  

  No. 
  13. 
  Blue 
  and 
  gray 
  shale 
  7 
  

  

  No. 
  14. 
  Black 
  shale 
  1 
  

  

  No. 
  15. 
  Coal 
  No. 
  9 
  2 
  

  

  No. 
  16. 
  Fire-clay 
  1 
  

  

  No. 
  17. 
  Nodular 
  limestone 
  5 
  

  

  No. 
  18. 
  Clay 
  shale 
  5 
  

  

  No. 
  19. 
  Soft 
  blue 
  sandstone 
  16 
  

  

  No. 
  20. 
  Gray 
  shale 
  42 
  

  

  No. 
  21. 
  Coal 
  No. 
  8 
  1 
  3 
  

  

  No. 
  22. 
  Fire-clay 
  2 
  6 
  

  

  No. 
  23. 
  Sandstone 
  10 
  

  

  No. 
  24. 
  Gray 
  shale 
  45 
  

  

  No. 
  25. 
  Hard 
  flinty 
  rock 
  10 
  

  

  No. 
  26. 
  Black 
  shale 
  3 
  

  

  No. 
  27. 
  Fire-clay 
  9 
  

  

  No. 
  28. 
  Blue 
  and 
  red 
  shales 
  15 
  

  

  No. 
  29. 
  Black 
  slate 
  5 
  

  

  No. 
  30. 
  CoalNo.7 
  1 
  3 
  

  

  No. 
  31. 
  Fire-clay 
  4 
  6 
  

  

  