﻿30 
  ECONOMICAL 
  GEOLOGY. 
  

  

  Ft. 
  In. 
  

  

  No. 
  40. 
  Flintrock? 
  4 
  

  

  No. 
  41. 
  Dark 
  slate 
  4 
  

  

  No. 
  42. 
  Nodular 
  flre-clay 
  \> 
  in 
  

  

  No. 
  4:i. 
  Brown 
  shale 
  4 
  

  

  No. 
  44. 
  Fire-clay 
  4 
  g 
  

  

  No. 
  45. 
  Sandy 
  shale 
  3 
  6 
  

  

  No. 
  46. 
  Softclay 
  shale 
  1 
  g 
  

  

  No. 
  47. 
  Sandstone 
  15 
  ti 
  

  

  No. 
  48. 
  Gray 
  slate 
  5 
  g 
  

  

  No. 
  49. 
  Dark 
  slate 
  with 
  iron 
  bands 
  1 
  c 
  

  

  No. 
  50. 
  Gray 
  slate 
  with 
  sulphur 
  balls 
  i»l 
  6 
  

  

  No. 
  51. 
  Black 
  slate, 
  with 
  fossil 
  shells 
  4 
  

  

  No. 
  52. 
  Gray 
  shale, 
  with 
  shells 
  and 
  plants 
  15 
  8 
  

  

  No. 
  53. 
  Black 
  slate 
  3 
  c 
  

  

  No. 
  54. 
  Blue 
  clay 
  shale 
  g 
  

  

  No. 
  55. 
  Limestone 
  in 
  two 
  bands, 
  with 
  3 
  inches 
  shale 
  i 
  i 
  

  

  No. 
  56. 
  Dark 
  soapstone 
  4 
  

  

  No. 
  57. 
  Limestone 
  1 
  

  

  No. 
  58. 
  Dark 
  clay 
  shale 
  2 
  6 
  

  

  No. 
  59. 
  Blackslate 
  5 
  

  

  No. 
  60. 
  Coal— 
  upper 
  5 
  inches 
  cannel, 
  No. 
  4 
  1 
  g 
  

  

  No. 
  61. 
  Fire-clay 
  6 
  

  

  No. 
  62. 
  Limestone 
  1 
  

  

  No. 
  63. 
  Dark 
  clay 
  shale 
  | 
  g 
  

  

  No. 
  64. 
  Black 
  slate 
  5 
  

  

  No. 
  65. 
  CoalNo.3 
  1 
  g 
  

  

  No. 
  66. 
  Fire-clay 
  ( 
  ; 
  

  

  N°. 
  67. 
  Limestone 
  g 
  

  

  No. 
  68. 
  Clay 
  shale 
  (light 
  and 
  dark) 
  gg 
  •> 
  

  

  No. 
  69. 
  Coal 
  (poor) 
  4 
  

  

  No. 
  70. 
  Sandstone, 
  with 
  sulphur 
  and 
  1 
  inch 
  coal 
  4 
  

  

  No. 
  71. 
  Dark 
  clay 
  shale 
  13 
  

  

  No. 
  72. 
  Hard 
  sulphur 
  rock 
  3 
  6 
  

  

  No. 
  73. 
  Blackslate 
  4 
  g 
  

  

  No. 
  74. 
  Gray 
  slate 
  and 
  shale 
  11 
  g 
  

  

  No. 
  75. 
  Coal 
  No. 
  2 
  2 
  8 
  

  

  Total 
  depth 
  576 
  4 
  

  

  The 
  coal 
  at 
  the 
  hottom 
  of 
  this 
  shaft 
  is 
  without 
  doubt 
  coal 
  No. 
  1 
  0! 
  

   the 
  general 
  section, 
  though 
  it 
  is 
  not 
  quite 
  so 
  thick 
  here 
  as 
  it 
  averages 
  

   in 
  LaSalle 
  county. 
  Quite 
  possibly 
  its 
  average 
  thickness 
  will 
  prove 
  

  

  to 
  be 
  greater 
  than 
  the 
  above 
  figures 
  may 
  indicate. 
  It 
  is 
  one 
  of 
  the 
  

   most 
  persistent 
  seams 
  in 
  the 
  State, 
  and 
  famishes 
  a 
  hitter 
  quality 
  

   of 
  coal 
  usually 
  than 
  any 
  of 
  the 
  others. 
  Its 
  freedom 
  from 
  sulphur 
  

   is 
  sometimes 
  so 
  complete 
  that 
  it 
  can 
  he 
  used 
  in 
  the 
  raw 
  state 
  for 
  

   smelting 
  iron. 
  

  

  A 
  boring 
  made 
  at 
  Marissa, 
  in 
  St. 
  Clair 
  county, 
  commenced 
  under 
  

   the 
  Belleville 
  coal, 
  shows 
  that 
  there 
  is 
  no 
  coal 
  nam 
  of 
  any 
  value 
  

   below 
  that 
  in 
  that 
  part 
  of 
  St. 
  Clair 
  county. 
  

  

  