﻿54 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  The 
  locality 
  given 
  by 
  Hilgard 
  and 
  Ivcrch 
  seems 
  to 
  be 
  in 
  error. 
  

   The 
  junior 
  author 
  has 
  carefully 
  gone 
  over 
  the 
  deeds 
  in 
  the 
  pos- 
  

   session 
  of 
  Mr. 
  Whitlow, 
  the 
  present 
  owner 
  of 
  the 
  place, 
  in 
  which 
  

   the 
  land 
  is 
  described 
  as 
  Sec. 
  31, 
  15 
  N., 
  5 
  W. 
  

  

  The 
  old 
  salt 
  furnaces 
  and 
  wells 
  cover 
  about 
  forty 
  acres 
  of 
  a 
  

   little 
  circular 
  valley 
  which 
  lies 
  around 
  and 
  a 
  little 
  west 
  of 
  the 
  

   center 
  of 
  that 
  Section. 
  The 
  hills 
  which 
  surround 
  the 
  valley 
  slope 
  

   very 
  gently 
  down 
  from 
  an 
  elevation 
  of 
  sixt)'^ 
  feet, 
  which 
  

   they 
  attain 
  over 
  a 
  mile 
  from 
  the 
  old 
  works. 
  The 
  southern 
  

   end 
  of 
  the 
  valley 
  is 
  quite 
  swampy, 
  and 
  during 
  heavy 
  rains 
  is 
  

   flooded 
  to 
  depth 
  of 
  two 
  or 
  three 
  feet. 
  The 
  little 
  outlet 
  creek, 
  

   Fousti 
  creek, 
  has 
  its 
  origin 
  in 
  the 
  lower 
  end 
  of 
  this 
  swamp. 
  

   Around 
  the 
  edge 
  of 
  the 
  valley 
  are 
  numerous 
  circular 
  mounds 
  

   about 
  sixty 
  feet 
  in 
  diameter 
  and 
  three 
  to 
  four 
  feet 
  high. 
  They 
  

   are 
  of 
  the 
  same 
  type 
  as 
  the 
  little 
  mounds 
  which 
  are 
  so 
  common 
  

   in 
  different 
  parts 
  of 
  Louisiana. 
  

  

  The 
  old 
  dump 
  heaps 
  around 
  the 
  wells, 
  the 
  latter 
  from 
  fifteen 
  

   to 
  twent}^ 
  feet 
  deep, 
  show 
  large 
  quantities 
  of 
  variousl)' 
  colored 
  

   quartz 
  and 
  chert 
  gravels. 
  Fragments 
  of 
  dark 
  gray 
  and 
  yel- 
  

   low 
  fissured 
  crystalline 
  limestone, 
  and 
  of 
  white 
  or 
  bluish 
  

   white 
  masses 
  of 
  gypsum, 
  are 
  quite 
  abundant 
  in 
  some 
  of 
  the 
  old 
  

   dumps. 
  

  

  The 
  hills 
  surrounding 
  the 
  old 
  lick 
  are 
  composed 
  almost 
  entirely 
  

   of 
  gray 
  sand 
  with 
  small 
  iron 
  concretions. 
  On 
  the 
  area 
  mapped, 
  

   but 
  three 
  places 
  were 
  seen 
  which 
  showed 
  anything 
  harder 
  than 
  

   sand. 
  Just 
  east 
  of 
  the 
  wells, 
  from 
  five 
  to 
  eight 
  feet 
  above 
  them, 
  

   is 
  a 
  little 
  patch 
  of 
  black 
  prairie 
  land 
  covered 
  with 
  small 
  hawthorn 
  

   bushes. 
  On 
  the 
  surface 
  of 
  the 
  prairie 
  numerous 
  specimens 
  of 
  

   large 
  Gryphtza 
  vesicidaris 
  and 
  a 
  single 
  valve 
  of 
  Exogyra 
  costata 
  

   were 
  found. 
  

  

  It 
  seems 
  queer, 
  from 
  the 
  abundance 
  of 
  the 
  former 
  species 
  and 
  

   the 
  comparative 
  scarcity 
  of 
  the 
  latter, 
  that 
  the 
  only 
  large 
  Ostrea- 
  

   like 
  shell 
  mentioned 
  by 
  Lerch 
  occurs 
  at 
  this 
  locality 
  in 
  Exogyra 
  

   costata. 
  Immediately 
  below 
  the 
  black 
  soil 
  is 
  a 
  layer 
  of 
  very 
  soft 
  

   white, 
  chalk-like 
  limestone. 
  It 
  is 
  from 
  this 
  that 
  the 
  large 
  shells 
  

   have 
  been 
  derived. 
  It 
  is 
  filled 
  with 
  finely 
  preserved 
  Cretaceous 
  

   fossils. 
  The 
  following 
  is 
  a 
  partial 
  list 
  of 
  the 
  species 
  found 
  here 
  

   (mainly 
  Stanton's 
  identifications): 
  

  

  