﻿56 
  MEDL1C0TT 
  : 
  SATPURA 
  coal-basin. 
  

  

  other 
  basin 
  there 
  would, 
  be 
  any 
  specific 
  agreement 
  in 
  the 
  composition; 
  

   number, 
  order 
  of 
  sequence, 
  or 
  duration 
  in 
  time, 
  of 
  the 
  several 
  respective 
  

   sub-divisions. 
  Such, 
  too, 
  has 
  been 
  proved 
  bv 
  experience. 
  From 
  the 
  great 
  

   steadiness 
  of 
  penological 
  aspect 
  and 
  wide 
  distribution 
  of 
  the 
  two 
  bottom 
  

   groups 
  of 
  the 
  series 
  — 
  the 
  Talchirs 
  and 
  the 
  Barakars 
  — 
  it 
  was 
  thought 
  

   that 
  analogous 
  similarity 
  might 
  obtain 
  in 
  the 
  succeeding 
  groups. 
  It 
  

   was 
  thus 
  at 
  first 
  believed 
  that 
  the 
  sandstones 
  and 
  ferruginous 
  clays 
  

   overlying 
  the 
  Barakars 
  in 
  the 
  Warda 
  field 
  represented 
  the 
  similar 
  

   deposits 
  of 
  the 
  Panchet 
  group 
  in 
  the 
  Raniganj 
  field 
  ; 
  but 
  the 
  fossil 
  

   evidence 
  showed 
  that 
  their 
  affinity 
  is 
  with 
  the 
  Damuda 
  series, 
  of 
  

   which 
  the 
  Barakar 
  is 
  the 
  bottom 
  group. 
  About 
  the 
  same 
  time 
  a 
  

   similar 
  conjecture 
  was 
  made 
  as 
  to 
  the 
  Panchet 
  affinities 
  of 
  the 
  red-clays 
  

   overlying 
  the 
  Barakars 
  in 
  the 
  Pench 
  valley 
  ; 
  but 
  it 
  is 
  sufficiently 
  evident 
  

   from 
  the 
  section 
  of 
  the 
  Satpura 
  basin 
  that 
  the 
  beds 
  belong 
  to 
  a 
  much 
  

   lower 
  horizon 
  than 
  the 
  Panchet. 
  It 
  is, 
  indeed, 
  very 
  apparent 
  from 
  

   this 
  western 
  basin 
  alone 
  that 
  the 
  lithological 
  criterion 
  can 
  be 
  but 
  of 
  small 
  

   assistance 
  ; 
  it 
  would 
  be 
  impossible 
  to 
  distinguish 
  the 
  clays 
  and 
  limestones 
  

   on 
  the 
  Pench 
  from 
  those 
  on 
  the 
  Denwa, 
  their 
  position 
  in 
  the 
  series 
  being- 
  

   widely 
  different. 
  The 
  sandstones 
  of 
  the 
  Jabalpur 
  and 
  the 
  Pachmari 
  

   groups 
  are 
  also 
  exceedingly 
  like 
  each 
  other. 
  

  

  It 
  would 
  be 
  difficult, 
  one 
  might 
  say 
  unnatural, 
  to 
  form 
  any 
  scale 
  of 
  

   groups 
  applicable 
  to 
  this 
  sedimentary 
  series 
  in 
  the 
  different 
  basin?. 
  One 
  

   must 
  for 
  the 
  present 
  be 
  content 
  with 
  the 
  independent 
  arrangement 
  of 
  

   the 
  groups 
  in 
  the 
  several 
  basins, 
  (as 
  here 
  suggested 
  for 
  the 
  Satpura 
  

   basin,) 
  postponing* 
  the 
  final 
  correlation 
  of 
  their 
  local 
  divisions 
  till 
  

   all 
  the 
  scattered 
  basins 
  of 
  the 
  deposits, 
  and 
  such 
  fossils 
  as 
  they 
  may 
  

   yield, 
  have 
  been 
  worked 
  out. 
  

  

  August 
  mi. 
  H. 
  B. 
  MEDLICOTT. 
  

  

  ( 
  LB8 
  ) 
  

  

  