﻿Ft. 
  

  

  111. 
  

  

  

  

  2 
  to 
  3 
  

  

  

  

  10 
  

  

  

  

  9 
  

  

  1 
  

  

  4 
  

  

  1 
  

  

  2 
  

  

  46 
  F00TE 
  : 
  GEOLOGY 
  OF 
  MADRAS. 
  

  

  a. 
  — 
  Vegetable 
  soil 
  ... 
  

  

  a. 
  Loamy 
  sand 
  

  

  5. 
  Lateritic 
  gravel 
  ... 
  ... 
  ••• 
  

  

  c. 
  Clayey 
  sand 
  with 
  kunkur 
  and 
  a 
  few 
  pebbles 
  of 
  kunkur 
  

  

  andlaterite 
  

  

  d. 
  Lateritic 
  conglomerate 
  with 
  implements 
  

  

  e. 
  Plant 
  shales 
  with 
  kunkur 
  infiltrations 
  (base 
  not 
  exposed) 
  ... 
  

  

  On 
  the 
  face 
  of 
  the 
  bed 
  cl 
  a 
  large 
  and 
  rather 
  water-worn 
  imple- 
  

   ment 
  was 
  well 
  exposed, 
  but 
  the 
  non-exposed 
  side 
  was 
  so 
  firmly 
  impacted 
  

   as 
  to 
  require 
  several 
  blows 
  from 
  a 
  heavy 
  hammer 
  to 
  detach 
  it. 
  Two 
  

   other 
  implements 
  were 
  extracted 
  from 
  the 
  same 
  bed 
  a 
  few 
  yards 
  to 
  the 
  

   northward. 
  These 
  also 
  were 
  firmly 
  imbedded 
  in 
  the 
  hard 
  and 
  tough 
  

   conglomerate. 
  Another 
  fine 
  but 
  considerably 
  water-worn 
  implement 
  was 
  

   found 
  by 
  me 
  in 
  the 
  side 
  of 
  a 
  small 
  gully 
  coming 
  from 
  the 
  north 
  in 
  to 
  the 
  

   Attrampakkam 
  nullah. 
  This 
  implement 
  occurred 
  at 
  a 
  place 
  about 
  half 
  

   a 
  mile 
  east 
  of 
  Nelway 
  village, 
  in 
  a 
  bed 
  of 
  very 
  hard 
  lateritic 
  conglomerate 
  

   at 
  a 
  depth 
  of 
  3 
  feet 
  from 
  the 
  top 
  of 
  the 
  bed. 
  This 
  bed 
  is 
  not 
  cut 
  through 
  

   by 
  the 
  gully, 
  so 
  its 
  thickness 
  was 
  not 
  ascertained. 
  From 
  the 
  extreme 
  

   hardness 
  of 
  the 
  laterite 
  the 
  extraction 
  of 
  this 
  implement 
  * 
  was 
  effected 
  

   only 
  with 
  considerable 
  labour. 
  

  

  On 
  the 
  high 
  ground 
  a 
  mile 
  north-east 
  of 
  this 
  gully 
  several 
  im- 
  

   plements 
  were 
  found 
  weathered 
  out 
  of 
  the 
  rocky 
  laterite, 
  other 
  imple- 
  

   ments 
  were 
  also 
  found 
  on 
  the 
  surface 
  of 
  other 
  laterite-covered 
  areas 
  

   further 
  to 
  the 
  north-east, 
  south-west, 
  and 
  west, 
  near 
  the 
  villages 
  of 
  

   Deandivakkam, 
  Tumbul, 
  and 
  Panur 
  t 
  respectively. 
  

  

  On 
  other 
  laterite 
  spreads, 
  lying 
  both 
  north 
  and 
  south 
  of 
  the 
  

   Narnaveram 
  river, 
  large 
  numbers 
  of 
  implements 
  were 
  found, 
  and 
  in 
  some 
  

   cases 
  chiselled 
  out 
  of 
  the 
  hard 
  conglomerate 
  rock. 
  The 
  implements 
  

  

  * 
  Two 
  figures 
  of 
  this 
  fine 
  implement 
  are 
  given 
  in 
  Plates 
  VI 
  and 
  Via 
  accompanying 
  

   my 
  paper 
  in 
  the 
  Madras 
  Literary 
  Journal, 
  October, 
  1866. 
  

  

  t 
  A 
  large 
  village 
  west 
  of 
  the 
  Alicoor 
  hills 
  indicated, 
  but 
  not 
  named, 
  in 
  sheet 
  78. 
  

   ( 
  4G 
  ) 
  

  

  