﻿294 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  of 
  bluish 
  banded 
  sandstone 
  east 
  of 
  Highwoods 
  four 
  corners 
  are 
  

   bluish 
  banded 
  sandstones 
  and 
  green 
  shales. 
  The 
  sandstone 
  is- 
  

   heavy 
  bedded 
  and 
  does 
  not 
  split 
  readily 
  into 
  thin 
  flags. 
  No 
  

   fossils 
  except 
  plant 
  stems 
  were 
  seen 
  and 
  the 
  rocks 
  are 
  in 
  the 
  

   Sherburne. 
  Glacial 
  striae 
  occur 
  running 
  S, 
  10° 
  W, 
  and 
  N, 
  10° 
  E. 
  

   The 
  dip 
  varies 
  from 
  about 
  5° 
  S, 
  50° 
  W, 
  to 
  4° 
  N, 
  40° 
  W. 
  The 
  

   westerly 
  dip 
  is 
  apparently 
  more 
  irregular 
  than 
  the 
  southerly, 
  due 
  

   partly 
  to 
  the 
  irregular 
  nature 
  of 
  the 
  strata. 
  

  

  On 
  the 
  highway 
  not 
  far 
  west 
  of 
  the 
  Plaaterskill 
  and 
  just 
  below 
  

   the 
  house 
  of 
  Mr 
  0. 
  Plass 
  are 
  bluish, 
  rather 
  arenaceous 
  shales 
  

   which 
  contain 
  some 
  fossils 
  as 
  Paracyclas 
  Urata 
  (Con.) 
  Hall, 
  Spiri- 
  

   fer 
  and 
  a 
  few 
  other 
  species. 
  This 
  locality 
  is 
  surely 
  in 
  the 
  Ham- 
  

   ilton 
  and 
  probably 
  the 
  top 
  of 
  the 
  formation 
  is 
  farther 
  west, 
  since 
  

   coarse, 
  bluish 
  arenaceous 
  shales, 
  with 
  a 
  slightly 
  concretionary 
  

   structure, 
  containing 
  fragments 
  of 
  fossils 
  were 
  noticed 
  along 
  the 
  

   highway 
  to 
  the 
  west 
  of 
  this 
  house. 
  About 
  one 
  fourth 
  mile 
  south- 
  

   east 
  of 
  the 
  Plass 
  house 
  the 
  highway 
  crosses 
  the 
  Plaaterskill 
  to 
  

   the 
  west 
  of 
  the 
  Mt 
  Marion 
  station. 
  At 
  this 
  locality 
  on 
  the 
  west- 
  

   ern 
  bank 
  of 
  the 
  creek 
  is 
  a 
  cliff 
  about 
  100 
  feet 
  high 
  composed 
  of 
  

   the 
  fine, 
  somewhat 
  arenaceous, 
  Hamilton, 
  blue 
  shales. 
  There 
  

   are 
  occasional 
  layers 
  of 
  somewhat 
  coarser 
  structure 
  which 
  fre- 
  

   quently 
  contain 
  numerous 
  specimens 
  of 
  Spirifers. 
  The 
  blue- 
  

   shales 
  do 
  not 
  contain 
  fossils 
  abundantly 
  though 
  they 
  are 
  fairly 
  

   common. 
  The 
  species 
  are 
  typical 
  Hamilton 
  ones 
  and 
  this 
  is 
  an 
  

   excellent 
  locality 
  for 
  studying 
  the 
  Lower 
  Hamilton 
  of 
  this 
  region. 
  

   The 
  following 
  species 
  were 
  found 
  in 
  these 
  shales 
  as 
  the 
  result 
  of 
  

   one 
  hour's 
  search: 
  

  

  1 
  Bellerophon 
  sp. 
  (rr) 
  

  

  2 
  Nyassa 
  arguta 
  Hall 
  (it) 
  

  

  3 
  N. 
  recta 
  Hall 
  (it) 
  

  

  4 
  Orthmiota 
  parvula 
  Hall 
  (r) 
  

  

  5 
  Paracyclas 
  Urata 
  (Con.) 
  Hall 
  (r) 
  

  

  6 
  Spirifer 
  granulosus 
  Hall 
  < 
  a) 
  

  

  7 
  S. 
  mucronatus 
  (Con.) 
  Bill. 
  (r) 
  

  

  8 
  Orthis 
  impressa 
  Hall 
  (r) 
  

  

  9 
  Chonetes 
  scitula 
  Hall 
  (r> 
  

  

  