﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  207 
  

  

  •ous 
  blue 
  shale 
  which 
  contains 
  an 
  occasional 
  thin 
  layer 
  of 
  sand- 
  

   stone. 
  There 
  are 
  also 
  thin 
  layers 
  of 
  small, 
  iron 
  stained 
  concre- 
  

   tions 
  and 
  at 
  the 
  lower 
  end 
  of 
  the 
  gorge 
  are 
  some 
  greenish 
  shales. 
  

   It 
  is 
  probable 
  that 
  these 
  rocks 
  are 
  in 
  the 
  Ithaca 
  formation 
  al- 
  

   though 
  the 
  list 
  of 
  fossils 
  given 
  below 
  does 
  not 
  furnish 
  very 
  con- 
  

   clusive 
  evidence 
  for 
  $pirifer 
  mesastrialis 
  Hall 
  was 
  not 
  found. 
  

  

  1 
  Tropidoleptus 
  carinatus 
  (Con.) 
  Hall 
  (c) 
  

  

  2 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  , 
  (c) 
  

  

  3 
  Chonetes 
  setigera 
  Hall 
  (c) 
  

  

  4 
  Orthothetes 
  chemungensis 
  (Con.) 
  H. 
  & 
  C. 
  (?) 
  (rr) 
  

  

  5 
  Nuculites 
  oblongatus 
  Con. 
  (rr) 
  

  

  6 
  Leda 
  brevirostris 
  Hall 
  (rr) 
  

  

  7 
  Lunulicardium 
  fragile 
  Hall 
  (rr) 
  

  

  At 
  the 
  brink 
  of 
  the 
  upper 
  cascade 
  and 
  on 
  the 
  banks 
  of 
  the 
  

   creek 
  above 
  is 
  a 
  blue, 
  fairly 
  massive 
  sandstone 
  containing 
  

   Psilophyton 
  princeps 
  Dn. 
  and 
  other 
  plant 
  stems. 
  

  

  XXVIII 
  Z 
  2 
  . 
  By 
  the 
  side 
  of 
  the 
  road 
  toward 
  West 
  Gilboa 
  and 
  

   about 
  west 
  of 
  the 
  Minekill 
  falls 
  are 
  fine 
  blue 
  shales 
  which 
  are 
  365 
  

   feet 
  or 
  more 
  above 
  the 
  level 
  of 
  the 
  Schoharie 
  river 
  and 
  below 
  them 
  

   are 
  some 
  quite 
  heavy 
  sandstones. 
  The 
  shales 
  are 
  fairly 
  fossilifer- 
  

   ous 
  and 
  are 
  in 
  the 
  Ithaca 
  formation. 
  The 
  following 
  species 
  were 
  

   collected 
  in 
  a 
  few 
  moments: 
  

  

  1 
  Nuculites 
  oblongatus 
  Con. 
  (?) 
  (rr) 
  

  

  Posterior 
  part 
  missing. 
  

  

  2 
  Tropidoleptus 
  carinatus 
  (Con.) 
  Hall 
  (rr) 
  

  

  3 
  Spirifer 
  tullius 
  Hall 
  (c) 
  

  

  4 
  St. 
  mesastrialis 
  Hall 
  (?) 
  (r) 
  

  

  Poorly 
  preserved. 
  

  

  5 
  Lamellibranch 
  shell. 
  

  

  Imperfectly 
  preserved. 
  

  

  XXVIII 
  Z 
  3 
  . 
  On 
  the 
  Minekill 
  four 
  miles 
  west 
  of 
  the 
  Schoharie 
  

   Tiveris 
  the 
  little 
  hamlet 
  of 
  West 
  Gilboa 
  or 
  Shoe 
  Hollow. 
  The 
  rocks 
  

   along 
  the 
  highway 
  from 
  Z 
  2 
  to 
  this 
  place 
  are 
  well 
  covered, 
  with 
  only 
  

   now 
  and 
  then 
  an 
  outcrop 
  of 
  a 
  sandstone 
  stratum 
  or 
  a 
  little 
  shale. 
  

   On 
  the 
  hill 
  one 
  fourth 
  mile 
  north 
  of 
  West 
  Gilboa 
  are 
  greenish 
  

   shales 
  in 
  which 
  Spirifer 
  mesastrialis 
  Hall 
  is 
  abundant. 
  The 
  fol- 
  

   lowing 
  species 
  were 
  obtained: 
  

  

  