﻿226 
  GEOLOGY. 
  

  

  feet 
  below 
  the 
  surface, 
  in 
  digging 
  cisterns, 
  about 
  half 
  a 
  

   mile 
  northeast 
  of 
  the 
  State 
  House, 
  in 
  Jackson. 
  

  

  At 
  Ball 
  Prairie, 
  about 
  six 
  miles 
  west, 
  selenite 
  is 
  abun- 
  

   dant 
  on 
  the 
  surface. 
  

  

  Agaric 
  mineral, 
  or 
  mountain 
  milk, 
  occurs 
  in 
  the 
  

   fissures 
  and 
  seams 
  of 
  all 
  the 
  lime-quarries 
  before 
  men- 
  

   tioned, 
  and 
  when 
  first 
  exposed, 
  is 
  of 
  the 
  appearance 
  and 
  

   consistency 
  of 
  newly-mixed 
  plaster 
  of 
  Paris 
  in 
  small 
  

   portions, 
  but 
  soon 
  acquires 
  great 
  hardness. 
  

  

  CLAYS, 
  OCHREOTJS 
  EARTHS, 
  AND 
  SANDS. 
  

  

  Considerable 
  deposits 
  of 
  potters 
  clay 
  are 
  found 
  in 
  

   many 
  situations. 
  

  

  That 
  in 
  the 
  bluff 
  at 
  Natchez, 
  and 
  at 
  the 
  White 
  Cliffs, 
  

   twelve 
  miles 
  below, 
  where 
  it 
  is 
  abundant, 
  has 
  been 
  tested 
  

   at 
  a 
  pottery 
  in 
  Natchez, 
  and 
  found 
  to 
  be 
  of 
  a 
  superior 
  

   quality. 
  

  

  A 
  pottery 
  is 
  in 
  operation 
  in 
  Marshall 
  County, 
  and 
  one 
  

   was 
  formely 
  established 
  at 
  Brandon. 
  There 
  are 
  doubt- 
  

   less 
  others 
  in 
  the 
  State, 
  there 
  being 
  no 
  deficiency 
  of 
  

   material 
  for 
  their 
  supply. 
  

  

  A 
  fine 
  description 
  of 
  a 
  very 
  white 
  plastic 
  clay, 
  of 
  uni- 
  

   form 
  texture, 
  and 
  well 
  adapted 
  for 
  modelling, 
  is 
  also 
  

   found 
  at 
  the 
  White 
  Cliffs, 
  in 
  Adams 
  County, 
  in 
  Wilkin- 
  

   son 
  County, 
  and 
  elsewhere. 
  

  

  A 
  medallion, 
  modelled 
  by 
  Mr. 
  Lyon, 
  the 
  late 
  sculptor, 
  

   in 
  Natchez, 
  from 
  a 
  specimen 
  furnished 
  him, 
  and 
  which 
  

   was 
  obtained 
  on 
  the 
  lands 
  of 
  Dr. 
  Holt, 
  in 
  the 
  suburbs 
  of 
  

   Woodville, 
  is 
  deposited 
  in 
  the 
  State 
  Cabinet 
  at 
  Jackson, 
  

   w^ith 
  other 
  specimens 
  in 
  the 
  crude 
  state, 
  as 
  well 
  as 
  seve- 
  

   ral 
  variegated 
  and 
  differently 
  colored 
  varieties 
  obtained 
  

   elsewhere. 
  

  

  