﻿GEOLOGY. 
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  245 
  

  

  delphia, 
  Neshoba 
  County; 
  in 
  Lawrence 
  County, 
  twelve 
  

   miles 
  east 
  of 
  Monticello, 
  on 
  the 
  head 
  of 
  Dry 
  Creek; 
  in 
  

   Kemper 
  County, 
  Section 
  34, 
  Township 
  10, 
  Range 
  17 
  

   E., 
  twelve 
  miles 
  from 
  De 
  Kalb; 
  and 
  in 
  Tippah 
  County, 
  

   a 
  few 
  miles 
  northwest 
  from 
  Ripley. 
  

  

  DILUVIUM, 
  OR 
  NORTHERN 
  DRIFT. 
  

  

  All 
  diluvial 
  action, 
  of 
  which 
  we 
  have 
  evidence 
  at 
  

   different 
  geological 
  eras, 
  was 
  formerly 
  referred 
  to 
  one 
  

   violent 
  and 
  transitory 
  period, 
  and 
  that 
  attributed 
  to 
  the 
  

   Noachian 
  deluge; 
  and 
  hence 
  the 
  term 
  diluvium, 
  which 
  

   was 
  first 
  applied 
  by 
  Dr. 
  Backland 
  to 
  all 
  the 
  superficial 
  

   beds 
  of 
  gravel, 
  clay, 
  and 
  sand 
  on 
  the 
  surface 
  of 
  the 
  earth 
  ; 
  

   in 
  the 
  distribution 
  and 
  rapid 
  accumulation 
  of 
  which, 
  and 
  

   the 
  distinctive 
  and 
  foreign 
  character 
  of 
  the 
  materials 
  

   deposited, 
  we 
  have 
  proof 
  of 
  a 
  violent 
  irruption 
  of 
  water. 
  

  

  Although 
  this 
  hypothesis 
  has 
  been 
  long 
  abandoned, 
  

   and 
  the 
  theories 
  once 
  entertained 
  in 
  reference 
  to 
  the 
  

   phenomena 
  of 
  drift 
  greatly 
  modified, 
  the 
  term 
  is 
  still 
  

   retained, 
  but 
  usually 
  coupled 
  and 
  connected 
  with 
  others, 
  

   conforming 
  more 
  in 
  their 
  signification 
  to 
  the 
  present 
  

   views 
  entertained 
  on 
  the 
  subject. 
  

  

  These 
  deposits 
  are 
  referred 
  to 
  now 
  as 
  the 
  Erratic 
  block 
  

   group, 
  the 
  Boulder 
  formation, 
  and 
  the 
  Northern 
  drift, 
  

   and 
  are 
  attributed 
  to 
  the 
  most 
  recent 
  of 
  the 
  series 
  of 
  

   Cataclysms 
  which 
  have 
  left 
  their 
  impress 
  upon 
  the 
  

   globe. 
  

  

  The 
  enormous 
  size 
  of 
  many 
  of 
  the 
  erratic 
  blocks 
  and 
  

   boulders, 
  the 
  astonishing 
  distances 
  the 
  pebble 
  and 
  smaller 
  

   detritus 
  have 
  been 
  transported, 
  the 
  mode 
  of 
  their 
  dis- 
  

   tribution, 
  and 
  the 
  eminences 
  on 
  the 
  earth's 
  surface 
  which 
  

   they 
  have 
  surmounted, 
  indicate 
  a 
  force, 
  or 
  power 
  em- 
  

  

  