﻿728 
  Fori 
  y- 
  seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  This 
  is 
  my 
  northernmost 
  section 
  in 
  the 
  Chenango 
  valley. 
  

   Prosser 
  (op. 
  cit. 
  p. 
  224) 
  gives 
  a 
  section 
  at 
  North 
  Norwich, 
  six 
  

   miles 
  above, 
  from 
  which 
  he 
  reports 
  a 
  very 
  similar 
  assemblage 
  of 
  

   fossils, 
  with 
  the 
  addition 
  of 
  Spirifer 
  mesastrialis, 
  which 
  was 
  not 
  

   observed 
  at 
  Station 
  A. 
  It 
  may 
  be 
  well 
  to 
  observe 
  here 
  at 
  the 
  

   outset 
  that 
  this 
  species 
  which 
  is 
  encountered 
  in 
  most 
  of 
  the 
  sections 
  

   in 
  this 
  region 
  occurs, 
  rarely 
  indeed, 
  but 
  in 
  characteristic 
  specimens 
  

   in 
  Hamilton 
  shales, 
  whose 
  position 
  beneath 
  the 
  Tully 
  limestone 
  

   can 
  not 
  be 
  questioned. 
  Before 
  me 
  lies 
  such 
  a 
  specimen 
  from 
  an 
  

   outcrop 
  three 
  miles 
  east 
  of 
  Borodino, 
  on 
  Otisco 
  lake, 
  Onondaga 
  

   county. 
  The 
  fauna 
  of 
  Station 
  A, 
  though 
  it 
  evidently 
  is 
  above 
  that 
  

   of 
  North 
  Norwich 
  so 
  far 
  as 
  here 
  recorded, 
  gives 
  no 
  indication 
  of 
  

   dissimilarity 
  from 
  a 
  normal 
  Hamilton 
  fauna, 
  either 
  in 
  the 
  associa- 
  

   tion 
  of 
  species, 
  or 
  in 
  the 
  individual 
  peculiarities 
  of 
  the 
  species 
  

   themselves. 
  

  

  Station 
  B. 
  Quarry 
  on 
  road 
  leading 
  west 
  from 
  Norwich 
  to 
  

   Preston, 
  running 
  along 
  south 
  bank 
  of 
  Canasawacta 
  creek 
  ; 
  one 
  

   mile 
  west 
  of 
  Norwich 
  post-office, 
  on 
  property 
  of- 
  Fred. 
  Titus. 
  

   Exposure 
  fifteen 
  feet 
  ; 
  elevation 
  150 
  feet 
  above 
  Station 
  A 
  and 
  

   200 
  feet 
  above 
  the 
  river. 
  

  

  (1) 
  At 
  the 
  base 
  is 
  a 
  light-gray 
  sandstone 
  in 
  three 
  two-foot 
  

   benches 
  with 
  shaly 
  partings 
  ; 
  

  

  (2) 
  Above 
  thin 
  sandy 
  shales, 
  two 
  feet, 
  six 
  inches 
  ; 
  

  

  (3) 
  Thick-bedded, 
  highly 
  concretion 
  ar}^ 
  sandstone, 
  three 
  feet; 
  

  

  (4) 
  At 
  the 
  top 
  three 
  feet 
  six 
  inches 
  of 
  sandy 
  flags 
  breaking 
  out 
  

   irregularly. 
  

  

  Layers 
  (2), 
  (3), 
  and 
  (4) 
  are 
  stripped 
  to 
  expose 
  the 
  bottom 
  benches 
  

   which 
  made 
  a 
  fair 
  quality 
  of 
  sandstone. 
  E'ossiis 
  are 
  common 
  

   throughout 
  the 
  shales 
  (2), 
  and 
  highly 
  abundant 
  in 
  the 
  concretions 
  

   of 
  (3). 
  In 
  the 
  shales 
  large 
  specimens 
  of 
  Spirifer 
  mesastrialis 
  

   occurs 
  sparsely. 
  

  

  Station 
  B 
  x 
  . 
  At 
  a 
  point 
  about 
  600 
  feet 
  further 
  up 
  the 
  road 
  a 
  

   similar 
  section 
  is 
  better 
  exposed 
  in 
  a 
  quarry 
  owned 
  by 
  John 
  

   Brookins. 
  Here 
  the 
  exposure 
  is 
  about 
  twenty 
  feet. 
  The 
  con- 
  

   cretionary 
  sandstone 
  (3) 
  of 
  above 
  section 
  is 
  here 
  within 
  two 
  or 
  

   three 
  feet 
  of 
  the 
  top 
  and 
  the 
  lower 
  sandstone 
  (1) 
  is 
  underlaid 
  by 
  

   four 
  feet 
  of 
  soft 
  bluish 
  shale. 
  The 
  basal 
  stratum 
  is 
  a 
  flagstone 
  

   whose 
  surface 
  only 
  is 
  exposed. 
  

  

  All 
  the 
  shaly 
  layers 
  are 
  abundantly 
  fossiliferous. 
  

  

  