﻿NUMMULITIC 
  OR 
  EOCENE 
  GROUP. 
  107 
  

  

  Selections 
  from 
  the 
  Records 
  of 
  the 
  Government 
  of 
  India, 
  No, 
  X, 
  for 
  

   1856, 
  which 
  I 
  need 
  not 
  here 
  further 
  allude 
  to. 
  

  

  Ton-doung, 
  or 
  the 
  Lime-hill, 
  as 
  it 
  is 
  commonly 
  called, 
  is 
  situated 
  

   some 
  five 
  miles 
  below 
  Thaietmio, 
  at 
  a 
  very 
  short 
  distance 
  from 
  the 
  

   Irrawadi 
  on 
  its 
  West 
  bank. 
  Viewed 
  from 
  a 
  distance 
  it 
  has 
  the 
  appear- 
  

   ance 
  of 
  a 
  single 
  hill 
  considerably 
  higher 
  than 
  the 
  low 
  ridges 
  in 
  its 
  

   neighbourhood, 
  its 
  height 
  being 
  estimated 
  by 
  Dr. 
  Oldham 
  (loe. 
  cit.) 
  at 
  

   less 
  than 
  eight 
  hundred 
  feet. 
  On 
  a 
  closer 
  view, 
  the 
  hill 
  is 
  seen 
  to 
  

   consist 
  of 
  three 
  distinct 
  ridges 
  or 
  divisions, 
  a 
  small 
  ridge 
  to 
  the 
  south, 
  

   which, 
  from 
  facing 
  the 
  village 
  of 
  that 
  name, 
  may 
  be 
  called 
  the 
  Pentha- 
  

   ling 
  ridge 
  ; 
  the 
  central 
  or 
  main 
  ridge, 
  which, 
  from 
  the 
  abundance 
  of 
  

   limestone 
  on 
  it, 
  may 
  be 
  called 
  the 
  Lime-hill 
  proper 
  ; 
  and 
  some 
  hills 
  con- 
  

   nected 
  with 
  it 
  to 
  the 
  North, 
  the 
  most 
  conspicuous 
  of 
  which 
  from 
  the 
  

   river 
  is 
  the 
  small 
  ridge 
  crowned 
  with 
  a 
  pagoda, 
  and 
  a 
  very 
  much 
  higher 
  

   hill, 
  which 
  from 
  Thaietmio 
  has 
  the 
  appearance 
  of 
  being 
  the 
  most 
  

   Westerly 
  shoulder 
  of 
  the 
  Lime-hill, 
  but 
  which 
  in 
  reality 
  is 
  separated 
  

   from 
  it 
  by 
  a 
  deep 
  gorge 
  through 
  which 
  the 
  cart 
  road 
  from 
  Thaietmio 
  to 
  

   Penthaling 
  passes. 
  

  

  The 
  Penthaling 
  ridge 
  is 
  a 
  low 
  one, 
  but 
  well 
  denned 
  and 
  with 
  ex- 
  

   ceedingly 
  steep 
  sides. 
  It 
  is 
  ranged 
  at 
  rather 
  an 
  oblique 
  angle 
  with 
  

   the 
  Lime-hill 
  proper, 
  along 
  the 
  South 
  flank 
  of 
  which 
  it 
  dies 
  off, 
  giving 
  

   rise 
  to 
  a 
  small 
  valley, 
  at 
  the 
  mouth 
  of 
  which, 
  on 
  the 
  bank 
  of 
  the 
  Irrawadi, 
  

   several 
  lime 
  -kilns 
  are 
  ranged. 
  This 
  valley 
  marks 
  precisely 
  the 
  course 
  

   of 
  the 
  Penthaling, 
  or 
  most 
  Southerly 
  of 
  the 
  faults 
  connected 
  with 
  the 
  

   Lime-hill, 
  the 
  general 
  direction 
  of 
  which 
  must 
  closely 
  coincide 
  with 
  the 
  

   course 
  of 
  the 
  small 
  stream 
  flowing 
  down 
  the 
  valley 
  and 
  falling 
  into 
  the 
  

   Irrawadi 
  just 
  below 
  the 
  lime-kilns. 
  The 
  Penthaling 
  ridge 
  is 
  composed 
  

   of 
  soft 
  sandstones 
  and 
  conglomerates 
  belonging 
  to 
  the 
  newer 
  Tertiaries, 
  

   and 
  from 
  its 
  excessive 
  steepness 
  and 
  the 
  loose 
  pebbles 
  scattered 
  over 
  its 
  

   surface 
  is 
  very 
  difficult 
  to 
  ascend 
  or 
  traverse 
  ; 
  but 
  an 
  excellent 
  section 
  

   of 
  the 
  beds 
  composing 
  it 
  is 
  displayed 
  in 
  the 
  river 
  bank 
  above 
  Pentha- 
  

  

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