﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  159 
  

  

  18 
  Tentaculvtes 
  bellulus 
  Hall 
  (c) 
  

  

  19 
  Camarotoechia 
  prolifica 
  (Hall) 
  H. 
  & 
  G. 
  (r) 
  

  

  20 
  C. 
  sappho 
  (Hall) 
  H. 
  & 
  C. 
  (rr) 
  

  

  21 
  Orthothetes 
  chemungensis 
  (Con.) 
  H. 
  & 
  C. 
  

  

  var. 
  arctostriatus 
  Hall 
  ( 
  rr 
  ) 
  

  

  22 
  Orthonota 
  undulata 
  (Con.) 
  (r) 
  

  

  23 
  Orthocems 
  sp. 
  (rr) 
  

  

  24 
  Chonetes 
  coronata 
  (Con.) 
  Hall 
  (aa) 
  

  

  There 
  are 
  splendid 
  specimens 
  of 
  the 
  variety 
  that 
  was 
  called 
  

   Strophomena 
  syrtalis 
  Con. 
  

  

  The 
  next 
  117 
  feet 
  above 
  the 
  dam 
  at 
  the 
  head 
  of 
  the 
  gulf 
  on 
  

   the 
  western 
  side 
  of 
  Summit 
  hill 
  is 
  mostly 
  covered 
  when 
  a 
  zone 
  

   of 
  fine 
  bluish 
  to 
  greenish 
  shales 
  is 
  reached 
  (A 
  10 
  ) 
  containing 
  an 
  

   occasional 
  fossil 
  as 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  This 
  outcrop 
  

   «eems 
  to 
  be 
  near 
  that 
  of 
  zone 
  XXVII 
  D 
  3 
  of 
  the 
  section 
  on 
  the 
  

   southern 
  side 
  of 
  the 
  hill. 
  From 
  the 
  base 
  of 
  A 
  10 
  to 
  the 
  floor 
  of 
  the 
  

   quarry 
  is 
  108 
  feet, 
  the 
  greater 
  part 
  of 
  which 
  is 
  covered 
  on 
  the 
  

   western 
  elope 
  of 
  the 
  hill. 
  The 
  remainder 
  of 
  the 
  section 
  is 
  the 
  

   game 
  as 
  that 
  described 
  in 
  section 
  XXVII 
  D. 
  

  

  Emmons 
  in 
  describing 
  the 
  rocks 
  near 
  Summit 
  referred 
  the 
  

   higher 
  ones 
  to 
  the 
  Chemung 
  formation, 
  stating 
  that 
  "At 
  Summit 
  

   in 
  Schoharie 
  county, 
  in 
  a 
  deep 
  gorge 
  near 
  the 
  village, 
  the 
  Che- 
  

   mung 
  group 
  occupies 
  the 
  upper 
  part 
  and 
  the 
  higher 
  slopes 
  

   adjacent 
  to 
  it, 
  and 
  also 
  the 
  hills 
  above 
  the 
  village. 
  As 
  yet, 
  

   however, 
  the 
  fossils 
  of 
  the 
  Chemung 
  narrows 
  are 
  not 
  common 
  or 
  

   numerous; 
  and 
  it 
  seems 
  to 
  be 
  established 
  that 
  the 
  fossils 
  of 
  the 
  

   Hamilton 
  shales 
  go 
  up 
  higher 
  into 
  the 
  shales 
  and 
  flags, 
  and 
  occur 
  

   nearer 
  to 
  the 
  base 
  of 
  the 
  Catskill 
  division 
  or 
  Old 
  Red 
  sandstone, 
  

   than 
  at 
  the 
  west." 
  a 
  

  

  In 
  the 
  above 
  quotation 
  it 
  is 
  not 
  quite 
  clear 
  which 
  gorge 
  is 
  

   meant, 
  yet 
  it 
  is 
  probable 
  that 
  its 
  rocks 
  are 
  in 
  the 
  Hamilton 
  

   instead 
  of 
  the 
  Chemung 
  formation. 
  As 
  already 
  shown 
  the 
  hills 
  

   to 
  the 
  north 
  and 
  northeast 
  of 
  Summit 
  are 
  capped 
  by 
  the 
  Sher- 
  

   burne 
  formation, 
  or 
  Portage 
  as 
  called 
  by 
  Emmons, 
  and 
  those 
  to 
  

   the 
  south 
  by 
  the 
  Ithaca. 
  

  

  " 
  a 
  Agriculture 
  of 
  New 
  York, 
  1846, 
  1:192. 
  

  

  