﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  277 
  

  

  LIX 
  A 
  1 
  In 
  the 
  highway 
  and 
  railroad 
  cut 
  just 
  above 
  the 
  toll 
  gate 
  

   one 
  mile 
  above 
  Leeds 
  are 
  blue 
  fossiliferous 
  sandstones 
  and 
  shales. 
  

   The 
  rocks 
  are 
  greatly 
  indurated 
  and 
  on 
  weathering 
  much 
  stained 
  

   by 
  iron. 
  The 
  strata 
  show 
  a 
  small 
  roll 
  and 
  the 
  locality 
  is 
  about 
  

   opposite 
  the 
  western 
  base 
  of 
  Potuck 
  hill. 
  The 
  formation 
  is 
  clear- 
  

   ly 
  the 
  Hamilton 
  as 
  is 
  shown 
  by 
  the 
  following 
  fauna: 
  

  

  1 
  Tropidoleptus 
  earinatus' 
  (Con.) 
  Hall 
  (a) 
  

  

  2 
  Chonetes 
  coronata 
  (Con.) 
  Hall 
  (aa) 
  

  

  3 
  CamarotoecJiia 
  sapplio 
  (Hall) 
  H. 
  & 
  C. 
  (?) 
  (rr) 
  

  

  4 
  Paracyclas 
  lirata 
  (Con.) 
  Hall 
  (r) 
  

  

  5 
  Nucula 
  bellistriata 
  (Con.) 
  Hall 
  (rr) 
  

  

  6 
  Prothyris 
  lanceolata 
  Hall 
  (rr) 
  

  

  7 
  Grammy 
  sia 
  sp. 
  (rr) 
  

  

  In 
  the 
  Catskill 
  creek 
  above 
  the 
  fall& 
  at 
  Leeds 
  and 
  farther 
  up 
  

   are 
  outcrops 
  of 
  the 
  Onondaga 
  limestone 
  while 
  to 
  the 
  west 
  the 
  

   Marcellus 
  shale 
  is 
  not 
  exposed, 
  being 
  covered 
  by 
  the 
  deep 
  soil 
  

   of 
  the 
  creek 
  valley. 
  The 
  precipitous 
  and 
  rocky 
  Vedder 
  hill 
  rises 
  

   on 
  the 
  western 
  side 
  of 
  the 
  Catskill 
  creek 
  valley 
  to 
  the 
  southwest 
  

   of 
  Leeds, 
  the 
  rocks 
  of 
  which 
  belong 
  in 
  the 
  Hamilton 
  formation. 
  

   In 
  fact 
  the 
  exposures 
  in 
  the 
  railroad 
  cut 
  at 
  LIX 
  A 
  1 
  are 
  at 
  the 
  north- 
  

   ern 
  end 
  of 
  this 
  hill 
  where 
  it 
  is 
  terminated 
  by 
  the 
  Catskill 
  valley, 
  

   but 
  the 
  hill 
  is 
  really 
  continued 
  on 
  the 
  northern 
  side 
  of 
  the 
  creek 
  

   by 
  Potuck 
  hill. 
  On 
  the 
  road 
  leading 
  southwest 
  from 
  the 
  toll 
  

   gate 
  up 
  and 
  along 
  the 
  western 
  slope 
  of 
  Vedder 
  hill 
  the 
  Hamilton 
  

   fossiliferous 
  shales 
  were 
  seen 
  at 
  an 
  outcrop 
  70 
  feet 
  higher 
  than 
  

   the 
  one 
  in 
  the 
  railroad 
  cut, 
  while 
  at 
  a 
  point 
  160 
  feet 
  higher 
  is 
  a 
  

   ledge 
  of 
  bluish 
  sandstone 
  with 
  some 
  that 
  is 
  coarse 
  grained, 
  gray- 
  

   ish, 
  and 
  very 
  hard. 
  Before 
  reaching 
  the 
  summit 
  of 
  the 
  highway, 
  

   about 
  215 
  feet 
  higher 
  than 
  the 
  railroad 
  cut, 
  a 
  ledge 
  of 
  red, 
  argil- 
  

   laceous 
  shale 
  crosses 
  the 
  road 
  which 
  was 
  considered 
  the 
  base 
  of 
  

   the 
  Oneonta 
  formation. 
  

  

  At 
  the 
  three 
  corners 
  two 
  miles 
  east 
  of 
  Lawrenceville 
  are 
  red 
  

   shales. 
  In 
  the 
  Bloom 
  quarries 
  in 
  that 
  vicinity 
  the 
  stone 
  is 
  some- 
  

   what 
  striped 
  bluish 
  to 
  bluish 
  gray 
  sandstone 
  which 
  splits 
  in 
  thick 
  

   layers. 
  Between 
  the 
  lower 
  and 
  upper 
  quarry 
  ledges 
  are 
  greenish 
  

  

  