﻿96 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  sent 
  a 
  modified 
  Hamilton 
  fauna, 
  occurring 
  below 
  the 
  base 
  of 
  the 
  

   Ohemung. 
  a 
  

  

  XXXIV 
  A 
  3 
  . 
  Farther 
  up 
  the 
  brook, 
  about 
  one 
  mile 
  northwest 
  of 
  

   Bainbridge, 
  a 
  small 
  branch 
  enters 
  it 
  from 
  the 
  south 
  along 
  which 
  

   are 
  exposures 
  of 
  rocks. 
  Ledges 
  also 
  occur 
  along 
  the 
  highway 
  a 
  

   short 
  distance 
  farther 
  northwest. 
  These 
  rocks 
  are 
  150 
  feet 
  

   higher 
  than 
  the 
  top 
  of 
  the 
  glen; 
  but 
  in 
  general 
  their 
  lithologic 
  

   characters 
  are 
  similar 
  to 
  those 
  in 
  the 
  glen, 
  though 
  there 
  are 
  

   thicker 
  layers 
  which 
  are 
  strongly 
  calcareous 
  and 
  composed 
  largely 
  

   of 
  fossils, 
  specially 
  the" 
  small 
  Spirifer. 
  The 
  following 
  species 
  

   were 
  collected 
  : 
  

  

  1 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  (?) 
  

  

  var. 
  posterns 
  H. 
  & 
  C. 
  (aa) 
  

  

  2 
  S. 
  mesastrialis 
  Hall 
  (r) 
  

  

  3 
  Productella 
  lachrymosa 
  (Con.) 
  Hall 
  (r) 
  

  

  4 
  Modiomorpha 
  quadrula 
  Hall 
  (c) 
  

  

  5 
  Schizodus 
  chemungensis 
  (Con.) 
  Hall 
  

  

  var. 
  quadrwnguhis 
  Hall 
  (rr) 
  

  

  6 
  Lyriopecten 
  tricostatus 
  (Van.) 
  Hall 
  (rr) 
  

  

  7 
  Bellerophon 
  macra 
  Hall 
  (?) 
  (rr) 
  

  

  XXXIV 
  A 
  4 
  . 
  Some 
  65 
  feet 
  higher 
  and 
  about 
  one 
  and 
  one 
  fourth 
  

   miles 
  northwest 
  of 
  Bainbridge 
  is 
  a 
  ledge 
  on 
  the 
  hillside 
  composed 
  

   of 
  a 
  rather 
  irregular 
  olive 
  sandstone, 
  with 
  a 
  tendency 
  to 
  concre- 
  

   tionary 
  structure. 
  There 
  are 
  some 
  fossils 
  specially 
  in 
  certain 
  

   layers, 
  the 
  following 
  species 
  having 
  been 
  collected 
  in 
  a 
  few 
  mo- 
  

   ments: 
  

  

  1 
  Spvrifer 
  mesastrialis 
  Hall 
  (rr) 
  

  

  2 
  Productella 
  lachrymosa 
  (Con.) 
  Hall 
  (c) 
  

  

  3 
  Schizodms 
  chemungensis 
  (Con.) 
  Hall 
  

  

  var. 
  quadrangulus 
  Hall 
  ( 
  rr 
  ) 
  

  

  4 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  

  

  var. 
  posterus 
  H. 
  & 
  C. 
  ( 
  a 
  ) 
  

  

  aProc. 
  Am. 
  ass'n 
  for 
  the 
  adv. 
  science, 
  18S6, 
  34:226, 
  231 
  and 
  section 
  10 
  of 
  the 
  chart 
  

   on 
  the 
  Meridional 
  sections 
  of 
  the 
  upper 
  Devonian 
  deposits 
  of 
  New 
  York, 
  Pennsylvania 
  

   and 
  Ohio. 
  

  

  