﻿412 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  A 
  noticable 
  feature 
  of 
  the 
  Salina 
  formation 
  in 
  eastern 
  New 
  

   York 
  is 
  a 
  reticulation 
  of 
  sun 
  cracks 
  on 
  what 
  apparently 
  is 
  its 
  

   upper 
  surface, 
  a 
  feature 
  which 
  I 
  have 
  noticed 
  in 
  every 
  exposure. 
  

  

  Niagara 
  limestone. 
  — 
  In 
  the 
  Schoharie 
  region 
  the 
  attenuated 
  

   eastern 
  representative 
  of 
  the 
  formation 
  is 
  exposed 
  at 
  many 
  points 
  

   for 
  a 
  considerable 
  distance. 
  Its 
  thickness 
  averages 
  five 
  feet 
  and 
  

   it 
  consists 
  of 
  a 
  massive 
  bed 
  of 
  dark-colored 
  limestone, 
  weathering 
  

   to 
  light-gray, 
  and 
  containing 
  corals. 
  At 
  Howe's 
  CaVe 
  it 
  is 
  especi- 
  

   ally 
  well 
  exposed 
  just 
  below 
  the 
  cement 
  quarries 
  of 
  which 
  it 
  

   constitutes 
  the 
  floor. 
  Some 
  of 
  its 
  relations 
  at 
  this 
  locality 
  are 
  

   shown 
  in 
  plates 
  3 
  and 
  4. 
  

  

  The 
  location 
  of 
  the 
  terminations 
  of 
  the 
  stratum 
  about 
  Scho- 
  

   harie 
  is 
  not 
  known, 
  for 
  owing 
  to 
  lack 
  of 
  outcrops 
  I 
  could 
  not 
  

   find 
  them.* 
  

  

  The 
  formation 
  is 
  absent 
  in 
  the 
  Helderberg 
  mountain 
  region 
  

   and 
  by 
  Coxsackie, 
  but 
  it 
  comes 
  in 
  again 
  near 
  Catskill 
  creek 
  

   and 
  extends 
  to 
  West 
  Camp 
  where 
  I 
  found 
  it 
  to 
  have 
  a 
  thickness 
  

   of 
  about 
  three 
  feet. 
  It 
  appears 
  to 
  be 
  absent 
  about 
  Saugerties 
  

   but 
  I 
  did 
  not 
  satisfy 
  myself 
  on 
  this 
  point. 
  It 
  is 
  exposed 
  in 
  the 
  

   Rondout 
  quarries 
  where 
  Lindley, 
  Dale 
  and 
  Davis 
  refer 
  to 
  its 
  

   presence. 
  Its 
  thickness 
  about 
  Rondout 
  is 
  six 
  feet, 
  and 
  its 
  coral- 
  

   line 
  character 
  is 
  conspicuous. 
  It 
  is 
  absent 
  in 
  the 
  Whiteport- 
  

   Rosendale 
  region, 
  and 
  so 
  far 
  as 
  I 
  could 
  determine, 
  also 
  at 
  High 
  

   Falls. 
  Its 
  presence 
  in 
  the 
  Ellen 
  ville 
  region 
  was 
  not 
  determined, 
  

   for 
  the 
  drift 
  cover 
  is 
  heavy 
  and 
  the 
  few 
  outcrops 
  were 
  all 
  of 
  higher 
  

   and 
  lower 
  rocks. 
  

  

  Clinton 
  formation. 
  — 
  The 
  pyritiferous 
  shales 
  about 
  Schoharie 
  

   which 
  belong 
  to 
  the 
  Clinton 
  age 
  are 
  seen 
  only 
  at 
  rare 
  inter- 
  

   vals. 
  There 
  is 
  one 
  obscure 
  exposure 
  on 
  the 
  slope 
  of 
  the 
  hill 
  just 
  

   northeast 
  of 
  the 
  village, 
  another 
  on 
  the 
  creek 
  a 
  few 
  hundred 
  

   yards 
  above 
  the 
  bridge 
  and 
  several 
  along 
  the 
  base 
  of 
  West 
  moun- 
  

   tain 
  to 
  the 
  northward. 
  At 
  Howe's 
  Cave 
  there 
  is 
  a 
  fine 
  exposure 
  

   in 
  an 
  excavation 
  just 
  below 
  the 
  cement 
  quarries, 
  which 
  is 
  shown 
  

   in 
  plate 
  4, 
  and 
  the 
  upper 
  beds 
  are 
  shown 
  in 
  plate 
  3. 
  The 
  thick- 
  

   ness 
  at 
  this 
  point 
  is 
  about 
  forty 
  feet, 
  and 
  the 
  formation 
  a 
  mass 
  of 
  

  

  *The 
  Niagara 
  (*' 
  Coralline 
  ") 
  limestone 
  crops 
  out 
  along 
  the 
  road 
  going 
  obliquely 
  up 
  the 
  hill 
  at 
  

   the 
  northeasterly 
  end 
  of 
  the 
  village 
  of 
  Schoharie, 
  and 
  continues 
  for 
  more 
  than 
  a 
  mile 
  along 
  the 
  

   northerly 
  escarpment 
  of 
  the 
  terrace. 
  A 
  building 
  (a 
  small 
  church) 
  has 
  been 
  erected 
  upon 
  this 
  

   outcrop 
  from 
  stone 
  quarried 
  on 
  the 
  north 
  side 
  of 
  the 
  road 
  just 
  referred 
  to.— 
  H. 
  

  

  