﻿in] 
  The 
  Five 
  Islands: 
  Petite 
  Anse 
  237 
  

  

  Conclusions. 
  — 
  Grande 
  Cote 
  shows 
  the 
  same 
  mantle 
  of 
  loamy 
  

   clay 
  that 
  appears 
  on 
  Cote 
  Blanche 
  although 
  erosion 
  has 
  pro- 
  

   gressed 
  a 
  little 
  further 
  on 
  the 
  former, 
  due 
  to 
  the 
  formation 
  of 
  

   sink-holes 
  and 
  the 
  increased 
  gradients 
  thus 
  given 
  the 
  side 
  

   streams. 
  The 
  lakes 
  seem 
  to 
  represent 
  old 
  sink-holes 
  formed 
  at 
  

   a 
  time 
  when 
  the 
  land 
  stood 
  higher 
  than 
  now" 
  and 
  whose 
  clogging 
  

   is 
  the 
  result 
  of 
  the 
  subsidence 
  now 
  progressing 
  on 
  the 
  Gulf 
  coast. 
  

  

  From 
  what 
  little 
  salt 
  has 
  been 
  taken 
  out 
  of 
  the 
  shaft 
  and 
  from 
  

   the 
  drill 
  holes, 
  the 
  top 
  layer 
  of 
  impure 
  salt 
  found 
  on 
  Belle 
  Isle 
  

   seems 
  to 
  be 
  lacking 
  on 
  Grand 
  Cote. 
  This 
  is 
  a 
  point 
  to 
  be 
  taken 
  

   into 
  consideration 
  in 
  an}" 
  theory 
  explaining 
  the 
  origin 
  of 
  the 
  

   dome-shape 
  of 
  the 
  salt 
  mass. 
  

  

  Archeoi,ogy 
  

  

  Shell 
  heap. 
  — 
  The 
  most 
  interesting 
  archeological 
  feature 
  of 
  the 
  

   island 
  is 
  the 
  shell 
  heap 
  on 
  Weeks' 
  bayou 
  near 
  the 
  landing 
  place 
  just 
  

   at 
  the 
  edge 
  of 
  the 
  island. 
  This 
  was 
  first 
  noticed 
  by 
  Thomassy.* 
  

   It 
  is 
  600 
  feet 
  long 
  between 
  30 
  and 
  60 
  feet 
  broad 
  and 
  10 
  feet 
  

   high. 
  The 
  southern 
  end 
  has 
  the 
  shape 
  of 
  a 
  truncated 
  pyra- 
  

   mid 
  from 
  which 
  a 
  narrow 
  ridge, 
  gradualhT^ 
  increasing 
  in 
  width, 
  

   extends 
  to 
  the 
  northern 
  end 
  of 
  the 
  mound, 
  which 
  is 
  almost 
  

   as 
  wide 
  as 
  the 
  southern. 
  The 
  heap 
  is 
  composed 
  almost 
  

   entirely 
  of 
  the 
  common 
  coast 
  G?iathodo?i. 
  A 
  few 
  animal 
  bones, 
  

   oysters 
  and 
  pot-shreds 
  are 
  found 
  scattered 
  through 
  the 
  mass. 
  

   Near 
  the 
  northern 
  end 
  numerous 
  skeletons 
  have 
  been 
  found. 
  

  

  Petite 
  Anse 
  

   Location 
  

   Geographical 
  position. 
  — 
  Petite 
  Anse 
  island, 
  Thomas' 
  island, 
  f 
  

   Marsh's 
  island, 
  Salt 
  island 
  or 
  Avery's 
  island, 
  as 
  it 
  has 
  been 
  

   called 
  in 
  succession, 
  is 
  situated 
  in 
  township 
  13 
  south, 
  range 
  5 
  

   and 
  6 
  east 
  of 
  the 
  Louisiana 
  prime 
  meridian. 
  It 
  is 
  about 
  ten 
  

   miles 
  south-southwest 
  of 
  New 
  Iberia 
  in 
  Iberia 
  parish 
  and 
  three 
  

   miles 
  from 
  the 
  shores 
  of 
  Vermillion 
  ba3^ 
  

  

  Surrounding 
  Country. 
  — 
  Like 
  all 
  the 
  islands 
  we 
  have 
  thus 
  far 
  

  

  * 
  Geologic 
  Pratique 
  de 
  la 
  Louisiane 
  p. 
  82. 
  

  

  f 
  The 
  History 
  and 
  Geography 
  of 
  the 
  Mississippi 
  Valley, 
  to 
  which 
  is 
  

   appended 
  a 
  Condensed 
  Physical 
  Geography 
  of 
  the 
  Atlantic 
  United 
  States 
  

   and 
  the 
  whole 
  of 
  the 
  American 
  Continent, 
  2d 
  Edition 
  by 
  Timothy 
  Flint 
  

   vol. 
  I, 
  p. 
  253, 
  1832. 
  

  

  