﻿68 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  The 
  beds 
  at 
  the 
  water-mill 
  are 
  of 
  this 
  lower 
  layer. 
  They 
  are 
  

   replete 
  with 
  oolitic 
  iron 
  ore, 
  greenish 
  when 
  freshly 
  exposed, 
  red- 
  

   dish 
  when 
  weathered. 
  

  

  Vici7iity 
  of 
  Negreet 
  P.O. 
  — 
  In 
  stream 
  beds 
  about 
  Negreet 
  a 
  

   bluish, 
  sandy, 
  lignitic 
  clay 
  is 
  now 
  and 
  then 
  to 
  be 
  seen. 
  But 
  the 
  

   most 
  prominent 
  exposures, 
  as 
  at 
  the 
  church 
  and 
  cross-roads 
  

   N. 
  W! 
  of 
  the 
  P.O., 
  show 
  beds 
  of 
  sand 
  with 
  ferruginous, 
  shaly 
  

   partings. 
  Mr. 
  Harvy 
  Gandey's 
  place 
  shows 
  in 
  several 
  localities 
  

   the 
  very 
  sandy 
  layers 
  just 
  mentioned, 
  together 
  with 
  large 
  ferru- 
  

   ginous 
  chunks, 
  or 
  rock 
  fragments, 
  reddish 
  for 
  the 
  most 
  part, 
  

   but 
  with 
  pockets 
  of 
  yellowish 
  limonite. 
  In 
  digging 
  a 
  well 
  on 
  

   his 
  place 
  some 
  20 
  years 
  ago, 
  Mr. 
  G. 
  found 
  fossil 
  shells 
  in 
  abun- 
  

   dance. 
  This 
  fact 
  should 
  be 
  borne 
  in 
  mind 
  by 
  residents 
  of 
  this 
  

   community, 
  for 
  the 
  very 
  sand)^ 
  series 
  of 
  the 
  uplands 
  could 
  be 
  

   improved 
  by 
  the 
  application 
  of 
  the 
  calcareous 
  material 
  obtained 
  

   from 
  these 
  fossiliferous 
  marly 
  deposits. 
  

  

  It 
  is 
  to 
  be 
  regretted 
  that 
  the 
  survey 
  has 
  not 
  yet 
  obtained 
  the 
  

   analyses 
  of 
  soils 
  taken 
  from 
  the 
  bottom 
  lands 
  of 
  this 
  place. 
  

   They 
  must 
  be 
  reserved 
  for 
  the 
  next 
  year's 
  report. 
  The 
  pecul- 
  

   iarity 
  which 
  they 
  should 
  show, 
  however, 
  is 
  the 
  nature 
  of 
  the 
  

   saline 
  efflorescence 
  which 
  oozes 
  up 
  from 
  below, 
  making 
  in 
  con- 
  

   junction 
  with 
  the 
  sand 
  that 
  accompanies 
  them 
  the 
  regular 
  low 
  

   hillocks 
  or 
  mounds, 
  that 
  characterize 
  many 
  of 
  the 
  flat 
  regions 
  

   of 
  this 
  and 
  other 
  southern 
  states. 
  

  

  On 
  Mr. 
  Henderson's 
  place, 
  4 
  miles 
  N. 
  N. 
  E- 
  of 
  Mr. 
  Gaudy's, 
  

   on 
  the 
  Many-Sabinetown 
  road, 
  marine 
  shells 
  are 
  said 
  to 
  have 
  

   been 
  found 
  in 
  considerable 
  quantities. 
  

  

  Vicinity 
  of 
  Many. 
  — 
  The 
  accompanying 
  map 
  shows 
  the 
  topog- 
  

   raphy 
  of 
  the 
  region 
  well, 
  viz.: 
  broad, 
  flat 
  bottoms, 
  and 
  steeply 
  

   sloping, 
  much 
  carved 
  uplands. 
  The 
  valle3's 
  seem 
  to 
  owe 
  their 
  

   shape 
  more 
  to 
  the 
  filling 
  up 
  of 
  a 
  young 
  V-shaped 
  valley 
  result- 
  

   ing 
  from 
  a 
  change 
  in 
  the 
  position 
  of 
  the 
  base 
  level 
  than 
  by 
  the 
  

   excavating 
  action 
  of 
  the 
  present 
  streams. 
  Along 
  the 
  stream 
  

   beds, 
  bluish 
  or 
  blackish 
  sandy 
  clays 
  now 
  and 
  then 
  appear 
  ; 
  but 
  

   the 
  commoner 
  beds 
  exposed 
  are 
  clays 
  and 
  light 
  colored 
  sands. 
  

   At 
  one 
  place, 
  in 
  the 
  bank 
  of 
  Tar 
  river 
  at 
  the 
  Devil's 
  backbone, 
  

   a 
  thin 
  bed 
  of 
  lignite 
  occurs. 
  Here 
  and 
  there 
  are 
  light 
  yellowish, 
  

   concretionary 
  calcareous 
  boulders, 
  containing 
  sometimes 
  leaves, 
  

  

  