﻿of 
  publication 
  of 
  Mr. 
  Blanford's 
  memoir, 
  was 
  noticed 
  by 
  him. 
  Since 
  

   that 
  date 
  the 
  only 
  additions 
  to 
  it 
  have 
  been, 
  — 
  

  

  1869. 
  Mr. 
  F. 
  B/. 
  Mallet's 
  monograph 
  on 
  the 
  Vindhyan 
  series 
  in 
  

   the 
  North- 
  Western 
  and 
  Central 
  Provinces, 
  "Memoirs," 
  

   Vol. 
  VII, 
  pt. 
  1. 
  It 
  covers 
  the 
  eastern 
  portion 
  of 
  our 
  ground 
  

   from 
  Handia 
  to 
  Barwai, 
  and 
  deals, 
  as 
  the 
  title 
  of 
  the 
  work 
  

   implies, 
  chiefly 
  with 
  the 
  Vindhyan 
  system. 
  

  

  1875. 
  Mr. 
  H. 
  B. 
  Medlicott's 
  paper 
  on 
  the 
  " 
  Shapur 
  coal-field, 
  

   with 
  notice 
  of 
  coal-explorations 
  in 
  the 
  Narbada 
  region 
  " 
  

   {« 
  Records/' 
  Vol. 
  VIII, 
  p. 
  65). 
  Mr. 
  Medlicott 
  made 
  out 
  

   the 
  unconformity 
  of 
  the 
  cretaceous 
  beds 
  to 
  the 
  sandstone 
  at 
  

   Barwai, 
  which 
  he 
  considers 
  to 
  be 
  Gondwana 
  — 
  an 
  important 
  

   result 
  that 
  will 
  be 
  referred 
  to 
  later 
  on. 
  

  

  1879. 
  A 
  note 
  on 
  the 
  " 
  Joga 
  [Juga] 
  neighbourhood 
  and 
  old 
  mines 
  on 
  

   the 
  Narbada/' 
  by 
  G. 
  J. 
  Nicholls, 
  C.S. 
  (« 
  Records/' 
  Vol. 
  

   XII, 
  p. 
  173). 
  

  

  Formations. 
  — 
  The 
  following 
  is 
  a 
  list 
  of 
  the 
  formations, 
  in 
  descending 
  

   order, 
  described 
  in 
  the 
  present 
  memoir 
  : 
  — 
  

  

  Approximate 
  European 
  Formations, 
  

  

  equivalents. 
  

  

  (1) 
  Deccantrap 
  (igneous, 
  mostly 
  snb-aerial), 
  with 
  

   inter-trappean 
  fresh- 
  water 
  limestone. 
  

  

  (2) 
  Lameta 
  (lacustrine). 
  

   Upper 
  Cretaceous 
  ^ 
  (3) 
  c 
  oraUine 
  . 
  liraestone 
  . 
  

  

  (4) 
  Deola 
  and 
  Chirakhan 
  marl 
  > 
  (marine). 
  

  

  (5) 
  Nodular-limestone 
  J 
  

  

  Lower 
  Cretaceous 
  (Neoco- 
  (6) 
  Nimar 
  sandstone 
  (estuarine 
  and 
  fresh-water 
  ?) 
  

  

  Mian). 
  with 
  oyster 
  band 
  at 
  the 
  top. 
  

  

  Jurassic 
  . 
  . 
  . 
  . 
  (7) 
  Mahadeva 
  (Upper 
  Gondwana) 
  sandstone 
  

  

  (fresh- 
  water). 
  

  

  (8) 
  Vindhyan 
  sandstone 
  (lacustrine 
  ?). 
  

  

  (9) 
  Bijawars, 
  or 
  transition 
  series 
  (marine). 
  

  

  (10) 
  Metamorphics 
  (marine). 
  

  

  The 
  formations 
  (2) 
  to 
  (7) 
  were 
  described 
  by 
  Mr. 
  Blanford 
  under 
  the 
  

   general 
  designation 
  of 
  " 
  Bag 
  " 
  cretaceous 
  rocks. 
  At 
  that 
  time 
  the 
  Maha- 
  

   devas 
  were 
  thought 
  to 
  be 
  quite 
  separate 
  from 
  the 
  coal-measure 
  series, 
  and 
  

  

  ( 
  2 
  ) 
  

  

  