﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  89 
  

  

  up 
  the 
  creek 
  a 
  two 
  foot 
  sandstone 
  stratum 
  shows. 
  In 
  the 
  cliff 
  

   above 
  the 
  covered 
  portion 
  are 
  thin 
  shaly 
  layers 
  of 
  gray 
  sandstone 
  

   which 
  soon 
  become 
  greenish 
  gray 
  and 
  massive, 
  and 
  about 
  11 
  

   feet 
  above 
  their 
  base 
  is 
  a 
  mass 
  of 
  blue 
  shale 
  in 
  the 
  midst 
  of 
  the 
  

   massive 
  gray 
  sandstone 
  which 
  is 
  like 
  a 
  channel 
  filling. 
  The 
  

   gray 
  coarse 
  grained 
  sandstone 
  continues 
  for 
  37 
  feet 
  when 
  a 
  

   stratum 
  of 
  red 
  shale 
  two 
  feet 
  thick 
  is 
  reached, 
  on 
  top 
  of 
  which 
  is 
  

   one 
  foot 
  of 
  red 
  sandstone 
  and 
  above 
  this 
  a 
  one 
  foot 
  stratum 
  of 
  

   gray 
  sandstone 
  capped 
  by 
  drift. 
  It 
  is 
  evident 
  that 
  the 
  coarse 
  

   gray 
  sandstone 
  with 
  the 
  red 
  shale 
  and 
  sandstone 
  above 
  forms 
  

   the 
  basal 
  part 
  of 
  the 
  Oneonta 
  formation. 
  At 
  the 
  upper 
  end 
  of 
  

   the 
  short 
  gorge, 
  immediately 
  above 
  the 
  third 
  highway 
  bridge 
  is 
  

   a 
  small 
  quarry 
  in 
  the 
  greenish 
  gray 
  Oneonta 
  sandstone 
  not 
  far 
  

   below 
  the 
  red 
  shale. 
  At 
  this 
  place 
  a 
  block 
  was 
  found, 
  evidently 
  

   from 
  the 
  quarry, 
  on 
  which 
  are 
  three 
  well 
  preserved 
  specimens 
  

   of 
  Amnigenia 
  catskillensis 
  (Van.) 
  Hall. 
  It 
  will 
  be 
  remembered 
  

   that 
  the 
  above 
  rare 
  fossil 
  is 
  the 
  characteristic 
  shell 
  of 
  the 
  

   Oneonta 
  formation 
  to 
  which 
  it 
  is 
  supposed 
  to 
  be 
  confined. 
  This 
  

   report 
  mentions 
  several 
  new 
  localities 
  at 
  which 
  the 
  shell 
  was 
  

   found 
  and 
  careful 
  search 
  would 
  probably 
  serve 
  to 
  increase 
  the 
  

   number. 
  

  

  On 
  the 
  hillside 
  125 
  feet 
  above 
  the 
  top 
  of 
  the 
  cliff 
  in 
  the 
  above 
  

   section 
  is 
  a 
  broken 
  sandstone 
  ledge 
  which 
  varies 
  from 
  a 
  few 
  to 
  

   20 
  or 
  more 
  feet 
  in 
  thickness. 
  At 
  the 
  base 
  there 
  is 
  a 
  gray 
  sand- 
  

   stone 
  followed 
  by 
  a 
  red 
  with 
  gray 
  sandstone 
  again 
  at 
  the 
  top 
  of 
  

   the 
  ledge. 
  

  

  The 
  section 
  along 
  Otsdawa 
  creek 
  may 
  be 
  tabulated 
  as 
  follows: 
  

  

  