320  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,   1903.  [bull.225. 
t  ion  of  the  Hold,  and  compares  very  closely  with  a  measurement  made  at 
a  bank  about  1  mile  southeast  of  Long  Run,  although,  the  latter  had  a 
few  inches  more  of  coal  at  the  point  where  the  seam  was  measured. 
Tli<>  section  at  the  Palmer  bank  is  as  follows: 
Section  at  Palmer  coal  bank. 
Ft.  In. 
Coal 1  3 
Shale 0  5 
Coal 1  5 
Shale ■ 0  8 
Coal 1  9 
Shale 0  5 
Coal 1  11 
Total 7     10 
Mr.  Samuel  White  owns  and  operates  for  country  trade  a  bank 
about  a  mile  northeast  of  Long  Run,  and  Robert  Fritz  has  an  opening 
(No.  8)  on  Big  Run.  Complete  sections  were  not  obtained  at  these 
points,  but  the  bed  is  known  to  be  over  6  feet  thick. 
The  Avonmore  mine  (No.  11)  is  operating  on  the  Pittsburg  seam, 
where  the  average  thickness  of  merchantable  coal  is  over  6  feet.  The 
usual  thickness  in  this  mine,  exclusive  of  the  roof  coal,  is  as  follows: 
Partial  section  at  Avonmore  mine. 
Ft.  In. 
Coal 2  11 
Shale 0  1 
Coal 3  8 
Total 6      8    ■ 
At  the  Foster  mine  (No.  12)  the  seam  carries  about  the  same  amount 
of  coal.  The  parting  or  "band  slate"  in  all  of  these  mines  varies  in 
thickness;  near  the  river  it  seems  usually  to  be  only  1  or  2  inches 
thick,  but  increases  in  places  to  a  foot  or  more.  The  total  thickness 
of  the  bed  in  the  Edri  mine  (No.  13)  changes  from  5  feet  9  inches  to 
8  feet  in  a  few  spots,  where  the  parting  thickens  from  li  inches  to 
3  feet. 
In  the  Bowman  mine  (No.  14),  at  the  southern  end  of  the  field,  that 
part  of  the  bed  which  is  taken  out  is  80  inches  high  and  contains  only 
one  noticeable  parting.     The  section  is  as  follows: 
Partial  section  at  Bowman  mine. 
Ft.  In. 
Coal 4  2 
Shale 0  1| 
Coal 2  5 
'   Total -----  6    Si 
