GLASS-SAND    INDUSTRY    OF    INDIANA,   KENTUCKY,  AND    OHIO.       369 
inch,  and  2  wash  bins.  A  belt  conveyer  delivers  the  sand  into  cars 
on  a  siding. "  The  present  capacity  of  this  plant  is  150  to  200  tons 
weekly.  The  best  grade  of  sand  is  used  at  Loogootee  for  common 
bottles  and  fruit  jars.  Other  grades  are  used  for  molding,  and  some 
goes  to  the  large  lime  quarries  at  Mitchell  and  Bedford  for  stone  saw- 
ing. The  quartz  pebbles,  separated  by  screening,  are  reserved  for 
sale  separately. 
Wolcott. — The  quarry  at  Wolcott,  formerly  operated  by  the  Amer- 
ican Window  Glass  Company,  was  not  visited  by  the  writer,  but 
E.  M.  Kindle  has  made  mention  of  it  as  follows:0 
Just  west  of  Wolcott  the  Mansfield  sandstone  appears  at  the  surface.     It  is  exten- 
sively quarried  for  glass  making  in  the  southwest  quarter  of  section  25.     The  section 
exposed  in  the  quarry  shows: 
Ft.     in. 
Surface  clay 0     8 
Light  bluish  gray,  coarse  sandstone  with  quartz    pebbles  scat- 
tered through  it 25 
The  sandstone  is  very  friable  and  in  part  of  the  quarry  is  but  little  more  than  an  un- 
consolidated sand. 
KENTUCKY. 
Tip  Top. — The  Kentucky  Silica  Company  has  opened  recently  a 
sandpit  at  Tip  Top,  Hardin  County,  28  miles  southwest  of  Louis- 
ville, on  the  Illinois  Central  Railroad.  Post-Carboniferous  sand, 
probably  of  Tertiary  age,  is  obtained  here  from  a  deposit  occupying 
the  highest  points  of  the  upland  surface  and  reaching  elevations  of 
400  feet  above  the  mean  level  of  Ohio  River.  As  stated  on  page  366, 
this  sand  is  probably  to  be  correlated  with  the  Ohio  River  formation 
of  the  Indiana  geologists.  It  here  attains  a  thickness  of  more  than 
50  feet  and  covers  40  or  more  acres.  The  deposit  consists  of  massive 
sandstone,  so  soft  and  so  poorly  cemented  that  it  crumbles  when 
touched.  The  sand  is  mainly  white  and  yellow,  the  yellow  sand 
constituting  the  upper  three-fifths  of  the  deposit.  Along  joints  the 
yellow  sand  has  been  stained  deep  red  by  infiltration  of  a  fine  red  silt 
from  the  surface.  The  lowest  beds  exposed  in  the  quarry  are  of  pure 
white,  very  fine-grained,  clear  quartz  sand,  and  interstratified  with 
them  are  a  few  lenses  and  bands,  2  to  6  inches  thick,  of  yellow  and 
white  plastic  clay.  At  the  lowest  point  excavated  in  the  quarry  a 
reef  of  fossiliferous  chert  has  been  uncovered,  but  this  was  not  visible 
at  the  time  of  the  visit.  Deep  drill  holes  within  one-half  mile  of  the 
deposit  do  not  encounter  any  such  beds  as  are  here  exposed  and  thus 
tend  to  confirm  the  belief  as  to  the  fragmentary  nature  of  the  deposit. 
The  acreage  of  sand  available,  however,  has  proved  to  be  large  enough 
to  warrant  the  erection  of  an  efficient  plant  for  procuring  and  washing 
the  product. 
"Kindle,  E.   M.,   Stratigraphy  and  palentology  of  the  Niagara   in  northern    Indiana :  Twenty- 
eighth  Ann.  Report  Dept.  Geology  and  Natural  Resources  Indiana,  Indianapolis,  1904,  p.  417. 
