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  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  Honeoye 
  and 
  the 
  Hemlock 
  valleys, 
  exposes 
  the 
  second 
  black 
  band 
  

   at 
  the 
  falls 
  and 
  nearly 
  all 
  of 
  the 
  soft 
  shales 
  below, 
  which 
  are 
  

   here 
  unusually 
  rich 
  in 
  fossils, 
  as 
  are 
  the 
  numerous 
  concretions. 
  

  

  The 
  upper 
  part 
  of 
  the 
  ravine 
  at 
  Gullburgh, 
  now 
  Glenville, 
  

   near 
  the 
  foot 
  of 
  Hemlock 
  lake, 
  is 
  in 
  Portage 
  shale, 
  the 
  lower 
  

   black 
  band 
  being 
  exposed 
  a 
  short 
  distance 
  above 
  the 
  lower 
  

   mill. 
  In 
  the 
  town 
  of 
  livonia, 
  Shurtleff's 
  gully, 
  in 
  the 
  east- 
  

   ern 
  part, 
  shows 
  an 
  interesting 
  exposure, 
  and 
  Lindsley 
  brook, 
  

   Hartson's 
  gully 
  and 
  French's 
  gully, 
  in 
  the 
  western 
  part 
  of 
  

   the 
  town, 
  on 
  the 
  eastern 
  shores 
  of 
  Conesus 
  lake, 
  with 
  Yan 
  

   Yalkenberg's 
  and 
  others 
  on 
  the 
  western 
  shores, 
  and 
  Maple 
  

   Beach, 
  McMillan's 
  and 
  the 
  Conesus 
  gullies, 
  near 
  the 
  head 
  of 
  the 
  

   lake, 
  together 
  make 
  a 
  section 
  which 
  includes 
  all 
  the 
  Portage 
  

   strata. 
  In 
  the 
  Dansville 
  valley, 
  all 
  the 
  rocks 
  exposed, 
  except 
  

   those 
  in 
  the 
  upper 
  part 
  of 
  the 
  hills 
  in 
  the 
  south 
  part 
  of 
  the 
  

   valley, 
  belong 
  to 
  the 
  Portage. 
  

  

  The 
  exposures 
  oi 
  the 
  lower 
  beds 
  along 
  Cashaqua 
  creek 
  and 
  the 
  

   entire 
  formation 
  in 
  the 
  vicinity 
  of 
  Portage 
  falls, 
  on 
  the 
  Genesee 
  

   river, 
  are 
  well 
  known, 
  as 
  the 
  latter 
  suggested 
  the 
  name 
  of 
  the 
  

   group 
  and 
  the 
  former 
  the 
  name 
  for 
  its 
  lowest 
  division. 
  

  

  Except 
  the 
  first 
  100 
  feet, 
  the 
  ravine 
  near 
  the 
  Lackawanna 
  salt 
  

   well, 
  two 
  miles 
  northwest 
  of 
  Mt. 
  Morris, 
  on 
  the 
  western 
  side 
  of 
  

   the 
  Genesee 
  valley, 
  is 
  in 
  Portage 
  rocks, 
  and 
  a 
  fine 
  section 
  is 
  here 
  

   exposed. 
  In 
  the 
  Oatka 
  district 
  the 
  ravines 
  on 
  both 
  sides 
  of 
  the 
  

   valley 
  about 
  Wyoming 
  show 
  very 
  fine 
  exposures 
  of 
  the 
  lower 
  or 
  

   Cashaqua 
  shales, 
  while 
  those 
  near 
  Warsaw, 
  particularly 
  that 
  of 
  

   Fall 
  Brook, 
  show 
  middle 
  or 
  " 
  Gardeau 
  " 
  shales 
  and 
  flags 
  to 
  per- 
  

   fection, 
  and 
  the 
  sandstones 
  at 
  the 
  top 
  of 
  the 
  formation 
  are 
  laid 
  

   bare 
  in 
  the 
  quarries 
  of 
  the 
  Warsaw 
  Stone 
  Company, 
  at 
  Rock 
  

   Glen, 
  six 
  miles 
  souih 
  of 
  Warsaw. 
  

  

  At 
  Attica, 
  the 
  lower 
  black 
  band 
  is 
  exposed 
  in 
  the 
  bed 
  of 
  the 
  

   stream 
  under 
  the 
  Main 
  street 
  bridge, 
  and 
  below 
  the 
  railroad 
  

   along 
  the 
  Tannery 
  brook 
  north 
  of 
  the 
  village. 
  By 
  ascending 
  

   the 
  south 
  branch 
  of 
  this 
  stream, 
  a 
  good 
  exposure 
  of 
  the 
  olive 
  

   shale 
  will 
  be 
  found 
  one-quarter 
  of 
  a 
  mile 
  above 
  the 
  railroad. 
  

  

  A 
  long 
  deep 
  ravine 
  which 
  has 
  its 
  mouth 
  near 
  the 
  station 
  at 
  

   Griswold's, 
  on 
  the 
  Lake 
  Erie 
  and 
  Western 
  railroad, 
  shows 
  a 
  

   Portage 
  section 
  from 
  the 
  Genesee 
  upward 
  to 
  include 
  the 
  upper 
  

   black 
  band 
  which 
  here 
  is 
  nearly 
  100 
  feet 
  thick. 
  

  

  