﻿36 
  ECONOMICAL 
  GEOLOGY. 
  

  

  and 
  durable 
  stone 
  for 
  massive 
  buildings. 
  The 
  supply 
  of 
  both 
  sand- 
  

   stone 
  and 
  limestone 
  is 
  practically 
  inexhaustible. 
  

  

  At 
  Evansville, 
  on 
  the 
  Okaw 
  river, 
  a 
  fine 
  quarry 
  of 
  excellent 
  lime- 
  

   stone 
  has 
  been 
  opened, 
  and 
  a 
  large 
  amount 
  of 
  rock 
  for 
  the 
  abut- 
  

   ments 
  of 
  a 
  suspension 
  bridge 
  has 
  been 
  taken 
  out. 
  The 
  quarries 
  are 
  

   located 
  about 
  half 
  a 
  mile 
  back 
  from 
  the 
  river, 
  and 
  a 
  hundred 
  feet 
  

   or 
  more 
  above 
  low-water 
  mark. 
  The 
  rock 
  is 
  a 
  massive 
  light-gray 
  

   semi-oolitic 
  limestone, 
  and 
  is 
  the 
  highest 
  bed 
  outcropping 
  in 
  the 
  

   vicinity 
  of 
  the 
  town. 
  

  

  The 
  principal 
  quarry 
  shows 
  a 
  perpendicular 
  face 
  of 
  about 
  15 
  feet 
  

   of 
  massive 
  grayish-drab 
  colored 
  limestone, 
  that 
  closely 
  resembles 
  

   some 
  of 
  the 
  semi-oolitic 
  beds 
  of 
  the 
  St. 
  Louis 
  group. 
  Some 
  of 
  the 
  

   beds 
  attain 
  a 
  thickness 
  of 
  four 
  or 
  five 
  feet, 
  and 
  will 
  furnish 
  dimen- 
  

   sion 
  stone 
  of 
  any 
  desirable 
  size. 
  

  

  No 
  characteristic 
  fossils 
  were 
  found 
  in 
  it, 
  but 
  it 
  was 
  underlaid 
  by 
  

   nearly 
  a 
  hundred 
  feet 
  of 
  shales 
  and 
  thin-bedded 
  limestones, 
  filled 
  

   with 
  the 
  characteristic 
  fossils 
  of 
  the 
  Chester 
  group, 
  leaving 
  no 
  

   doubt 
  in 
  regard 
  to 
  the 
  formation 
  to 
  which 
  it 
  belongs. 
  It 
  may, 
  per. 
  

   haps, 
  be 
  the 
  equivalent 
  of 
  the 
  regularly-bedded 
  portion 
  of 
  the 
  upper 
  

   limestone 
  in 
  the 
  Chester 
  bluffs. 
  The 
  surface 
  ovei* 
  which 
  it 
  forms 
  

   the 
  bed 
  rock 
  is 
  considerably 
  broken 
  by 
  sink 
  holes, 
  similar 
  to, 
  but 
  

   smaller 
  than 
  those 
  which 
  prevail 
  where 
  the 
  St. 
  Louis 
  limestone 
  is 
  

   the 
  underlying 
  rock. 
  Should 
  a 
  railroad 
  be 
  constructed 
  through 
  this 
  

   part 
  of 
  Randolph 
  county, 
  these 
  quarries 
  would 
  become 
  a 
  source 
  of 
  

   profit 
  to 
  the 
  owners, 
  and 
  would 
  add 
  an 
  important 
  item 
  to 
  the 
  busi- 
  

   ness 
  of 
  the 
  road. 
  

  

  BoekviUe 
  Quarries.— 
  Two 
  miles 
  and 
  a 
  half 
  west 
  of 
  Seville, 
  in 
  Ful- 
  

   ton 
  county, 
  extensive 
  quarries 
  have 
  been 
  opened 
  since 
  the 
  report 
  

   on 
  that 
  county 
  was 
  published, 
  in 
  a 
  sandstone 
  Overlying 
  No. 
  -. 
  and 
  

   outcropping 
  in 
  the 
  bluffs 
  of 
  a 
  small 
  stream 
  running 
  into 
  Spoon 
  

   river. 
  These 
  quarries 
  are 
  owned 
  by 
  Robert 
  P. 
  Leeman, 
  of 
  Cincin- 
  

   nati, 
  Who 
  lias 
  erected 
  machinery 
  for 
  manufacturing 
  grindstOD 
  

   whetstones, 
  scythestones, 
  and 
  also 
  for 
  supplying 
  dimension 
  stone 
  to 
  

   the 
  Wabash 
  road 
  and 
  the 
  towns 
  on 
  its 
  route. 
  The 
  rock 
  in 
  the 
  

  

  quarry 
  shows 
  a 
  perpendicular 
  face 
  of 
  about 
  20 
  feet, 
  and 
  furnishes 
  

   dimension 
  stone 
  from 
  two 
  to 
  three 
  feel 
  in 
  thickness, 
  and 
  as 
  Uu 
  

   as 
  can 
  in 
  conveniently 
  handled. 
  

  

  The 
  best 
  grindstone 
  gril 
  comes 
  from 
  near 
  the 
  middle 
  of 
  the 
  bed, 
  

   and 
  the 
  stones 
  manufactured 
  here 
  range 
  from 
  two 
  to 
  four 
  fed 
  or 
  

   more 
  in 
  diameter. 
  The 
  rook 
  lias 
  a 
  sharp 
  grit, 
  and 
  seems 
  to 
  | 
  

   an 
  even 
  texture 
  thai 
  makes 
  the 
  stones 
  desirable 
  fox 
  ordinary 
  use. 
  

  

  