﻿GEOLOGY. 
  257 
  

  

  to 
  possess 
  any 
  medicinal 
  jDroperties, 
  they 
  were 
  supplanted 
  

   by 
  Columbia 
  Springs, 
  in 
  Marion 
  County, 
  and 
  for 
  a 
  long 
  

   period 
  had 
  gone 
  out 
  of 
  use. 
  

  

  For 
  two 
  or 
  three 
  years 
  past, 
  they 
  have 
  again 
  been 
  

   attracting 
  some 
  attention, 
  and 
  buildings 
  of 
  a 
  limited 
  

   extent 
  have 
  been 
  erected. 
  

  

  The 
  peculiarity 
  of 
  these 
  springs 
  consists 
  in 
  the 
  volume 
  

   of 
  water 
  forced 
  upwards 
  from 
  a 
  considerable 
  depth, 
  by 
  

   an 
  evidently 
  great 
  pressure. 
  The 
  pool 
  or 
  basin 
  formed 
  

   by 
  the 
  principal 
  spring, 
  is 
  used 
  as 
  a 
  bath. 
  It 
  may 
  not 
  

   be 
  inaptly 
  likened 
  to 
  a 
  natural 
  Artesian 
  well, 
  with 
  a 
  

   tube 
  or 
  perforation 
  about 
  four 
  feet 
  in 
  diameter, 
  which 
  

   has 
  not 
  been 
  fathomed. 
  

  

  A 
  person 
  leaping 
  into 
  this 
  with 
  some 
  force, 
  may 
  sink 
  

   a 
  short 
  distance 
  below 
  the 
  surface, 
  but 
  will 
  be 
  forcibly 
  

   ejected. 
  In 
  a 
  quiescent 
  state, 
  one 
  cannot 
  sink 
  below 
  the 
  

   armpits. 
  Poles 
  twenty 
  feet 
  in 
  length 
  have 
  been 
  inserted 
  

   in 
  it, 
  with 
  no 
  other 
  apparent 
  resistance 
  than 
  that 
  pre- 
  

   sented 
  by 
  the 
  ascending 
  column 
  of 
  water. 
  

  

  The 
  water 
  is 
  pure 
  and 
  limpid, 
  but, 
  owing 
  to 
  a 
  quan- 
  

   tity 
  of 
  decayed 
  and 
  finely 
  comminuted 
  vegetable 
  matter, 
  

   and 
  sand 
  held 
  in 
  suspension 
  over 
  the 
  aperture, 
  the 
  vision 
  

   can 
  penetrate 
  but 
  a 
  short 
  distance 
  into 
  its 
  depths. 
  

  

  The 
  temperature 
  of 
  the 
  bath, 
  with 
  the 
  thermometer 
  

   plunged 
  some 
  distance 
  below 
  the 
  surface, 
  was 
  64° 
  

   Fahrenheit. 
  In 
  the 
  open 
  air, 
  before 
  immersion, 
  it 
  stood 
  

   at 
  72 
  degrees. 
  

  

  As 
  connected 
  somewhat 
  in 
  character 
  with 
  these 
  

   springs, 
  and 
  situated 
  some 
  eight 
  miles 
  below, 
  near 
  the 
  

   stream 
  of 
  which 
  they 
  are 
  the 
  source, 
  but 
  on 
  elevated 
  

   pine 
  lands, 
  may 
  be 
  mentioned 
  two 
  wells 
  (in 
  the 
  same 
  

   county) 
  about 
  a 
  mile 
  or 
  so 
  distant 
  from 
  each 
  other, 
  in 
  

   which, 
  on 
  penetrating 
  a 
  thin 
  stratum 
  of 
  hard 
  pan, 
  the 
  

   water 
  in 
  each 
  instance 
  rushed 
  up 
  with 
  such 
  violence, 
  

   17 
  

  

  