﻿Ill] 
  Shreveport 
  Area: 
  Soils 
  i77 
  

  

  A 
  comparison 
  of 
  specimens 
  shows 
  the 
  following 
  species 
  from 
  

   layer 
  three 
  of 
  the 
  James 
  Eric 
  section 
  : 
  

  

  Soils* 
  

  

  Varieties. 
  — 
  The 
  partially 
  complete 
  soil 
  map 
  accompanying 
  

   this 
  report 
  shows 
  but 
  three 
  soils, 
  viz.: 
  

  

  1. 
  Red 
  sandy 
  loam. 
  (Front 
  land.) 
  

  

  2. 
  Stiff 
  red 
  clay. 
  (Back 
  land.) 
  

  

  3. 
  Black 
  sandy 
  clay. 
  (Prairie.) 
  

  

  These 
  are 
  the 
  principal 
  types, 
  but 
  by 
  the 
  mixing 
  of 
  different 
  

   proportions 
  of 
  the 
  three 
  kinds 
  an 
  almost 
  indefinite 
  number 
  of 
  

   varieties 
  are 
  produced. 
  Number 
  one 
  grades 
  into 
  number 
  two, 
  

   making 
  it 
  quite 
  difficult 
  to 
  say 
  just 
  where 
  one 
  begins 
  and 
  the 
  

   other 
  ends. 
  The 
  line 
  between 
  the 
  second 
  and 
  third 
  is 
  generally 
  

   well 
  marked 
  if 
  the 
  land 
  has 
  not 
  been 
  plowed. 
  The 
  red, 
  stiff 
  land 
  

   thins 
  out 
  to 
  a 
  feather 
  edge 
  on 
  the 
  edge 
  of 
  the 
  prairie 
  land 
  ; 
  when 
  

   the 
  land 
  is 
  plowed 
  the 
  two 
  are 
  thoroughly 
  mixed, 
  forming 
  a 
  com- 
  

   plete 
  series 
  of 
  soils 
  from 
  one 
  to 
  the 
  other. 
  f 
  

  

  It 
  often 
  happens 
  that 
  a 
  thin 
  veneer 
  of 
  stiff 
  red 
  clay 
  will 
  over- 
  

   lie 
  a 
  layer 
  of 
  sandy 
  loam. 
  In 
  plowing 
  these 
  are 
  thoroughly 
  

   mixed, 
  forming 
  what 
  is 
  locally 
  called 
  "dough-faced 
  land." 
  

   A 
  mixture 
  of 
  back-land 
  and 
  prairie-land 
  produces 
  " 
  black 
  stiff 
  

   land." 
  

  

  Peculiarities 
  and 
  distribution. 
  — 
  The 
  red, 
  sandy 
  loam 
  occupies 
  

   the 
  highest 
  portions 
  of 
  the 
  bottoms 
  along 
  the 
  immediate 
  banks 
  

   of 
  the 
  river 
  and 
  the 
  old 
  outlet 
  bayous. 
  The 
  predominant 
  tree 
  is 
  

  

  * 
  No 
  satisfactory 
  account 
  of 
  the 
  soils 
  can 
  be 
  written 
  until 
  they 
  have 
  been 
  

   analyzed. 
  Such 
  analyses 
  of 
  the 
  samples 
  collecled 
  in 
  this 
  region 
  are 
  now 
  

   being 
  made 
  under 
  the 
  direction 
  of 
  Dr. 
  Stubbs. 
  Reports 
  of 
  these 
  analyses 
  

   will 
  be 
  published 
  in 
  Dr. 
  Stubb's 
  work 
  on 
  the 
  soils 
  of 
  the 
  State. 
  The 
  notes 
  

   here 
  offered 
  are 
  rather 
  on 
  their 
  general 
  aspect 
  and 
  location 
  than 
  on 
  their 
  

   agricultural 
  value. 
  

  

  t 
  On 
  the 
  map 
  an 
  attempt 
  has 
  been 
  made 
  to 
  show 
  only 
  the 
  predominate 
  

   soil. 
  Thus, 
  if 
  an 
  area 
  is 
  mapped 
  " 
  front 
  land 
  " 
  it 
  does 
  not 
  mean 
  that 
  the 
  

   land 
  is 
  always 
  typical 
  red, 
  sandy 
  loam, 
  but 
  that 
  the 
  red, 
  sandy 
  loam 
  is 
  the 
  

   principal 
  constituent 
  of 
  that 
  soil. 
  The 
  overlapping 
  of 
  one 
  material 
  on 
  the 
  

   others 
  makes 
  satisfactory 
  soil 
  mapping 
  quite 
  difficult. 
  The 
  surface 
  maybe 
  

   typical 
  stiff 
  red 
  land 
  and 
  an 
  inch 
  or 
  more 
  below, 
  black 
  land. 
  The 
  depth 
  of 
  

   the 
  lower 
  layer 
  varies 
  greatly 
  over 
  even 
  a 
  small 
  area. 
  

   L 
  

  

  