﻿218 
  GEOLOGY. 
  

  

  Marshall 
  to 
  that 
  formerly 
  worked 
  by 
  Mr. 
  Long, 
  about 
  

   eight 
  miles 
  south 
  of 
  Jackson. 
  

  

  The 
  sandstone, 
  it 
  is 
  presumable, 
  takes 
  a 
  more 
  southerly 
  

   range, 
  passes 
  under 
  Pearl 
  River 
  into 
  Rankin, 
  where 
  it 
  

   probably 
  forms 
  the 
  natural 
  pavement 
  which 
  has 
  attracted 
  

   much 
  notice 
  as 
  a 
  supposed 
  work 
  of 
  art. 
  

  

  Slabs 
  of 
  this 
  sandstone, 
  very 
  similar 
  to 
  those 
  described 
  

   in 
  Rankin 
  County, 
  have 
  been 
  seen 
  in 
  considerable 
  quan- 
  

   tity, 
  both 
  detached, 
  and 
  resting 
  in 
  their 
  native 
  beds 
  on 
  

   the 
  White 
  Oak, 
  a 
  considerable 
  tributary 
  of 
  the 
  Bayou 
  

   Pierre 
  in 
  Copiah 
  County. 
  

  

  These 
  were 
  about 
  five 
  inches 
  in 
  thickness, 
  of 
  a 
  smooth 
  

   even 
  surface, 
  separated 
  into 
  rather 
  regular 
  angular 
  forms, 
  

   the 
  under 
  side 
  only 
  being 
  uneven 
  and 
  cellular, 
  from 
  rest- 
  

   ing 
  on 
  the 
  diluvial 
  gravel 
  on 
  which 
  it 
  lies. 
  

  

  Several 
  extensive 
  ranges 
  of 
  similar 
  rock 
  occur 
  in 
  

   Atala 
  County, 
  having 
  a 
  direction 
  from 
  N.E. 
  to 
  S.W. 
  It 
  

   is 
  of 
  more 
  uniform 
  texture, 
  finer 
  grit, 
  and 
  greatly 
  harder 
  

   and 
  more 
  durable, 
  than 
  that 
  of 
  any 
  other 
  deposit 
  ob- 
  

   served. 
  

  

  Considerable 
  quantities 
  of 
  massive 
  sandstone 
  is 
  found 
  

   near 
  Rocky 
  Ford 
  in 
  Pontotoc 
  County, 
  on 
  both 
  sides 
  of 
  

   the 
  Tallahatchie. 
  

  

  Of 
  the 
  other 
  sandstones 
  noted, 
  I 
  have 
  to 
  mention 
  that 
  

   in 
  the 
  forks 
  of 
  the 
  Chilly 
  Creek 
  in 
  Section 
  35, 
  Township 
  

   4, 
  Range 
  1 
  E., 
  in 
  Tippah 
  County. 
  The 
  rock 
  designed 
  

   for 
  the 
  Washington 
  Monument, 
  contributed 
  by 
  the 
  State, 
  

   was 
  procured 
  here, 
  and 
  sent 
  to 
  Natchez 
  to 
  be 
  cut 
  by 
  the 
  

   sculptor, 
  Mr. 
  E. 
  Lyon, 
  and 
  rejected 
  as 
  too 
  hard 
  and 
  cel- 
  

   lular. 
  It 
  is 
  a 
  silicious 
  coralline 
  rock, 
  of 
  extreme 
  hard- 
  

   ness, 
  partially 
  agatized. 
  From 
  the 
  description 
  given 
  me 
  

   by 
  Mr. 
  Campbell, 
  who 
  was 
  employed 
  in 
  getting 
  it 
  out, 
  

   it 
  was 
  probably 
  one 
  of 
  a 
  group 
  of 
  boulders 
  or 
  erratic 
  

   blocks, 
  the 
  whole 
  not 
  extending 
  beyond 
  a 
  quarter 
  sec- 
  

  

  