﻿304 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  16 
  Discina 
  doria 
  Hall 
  (ir) 
  

  

  17 
  Atliyris 
  spiriferoides 
  (Eaton) 
  Hall 
  (rr> 
  

  

  18 
  Modiomorpha 
  subalata 
  (Con.) 
  Hall 
  (?) 
  (rr) 
  

  

  19 
  Pleurotomarid 
  sp. 
  (rr) 
  

  

  Above 
  the 
  bridge 
  over 
  Sandberg 
  creek 
  are 
  decidedly 
  olive 
  

   argillaceous 
  shales 
  and 
  some 
  thick 
  bedded, 
  rather 
  greenish 
  sand- 
  

   stones 
  apparently 
  in 
  the 
  Sherburne 
  formation. 
  An 
  outcrop 
  of 
  

   greenish 
  blue 
  flagstone 
  by 
  the 
  highway 
  two 
  miles 
  above 
  Homo- 
  

   wad 
  has 
  a 
  dip 
  of 
  6° 
  N, 
  70° 
  W. 
  

  

  SULLIVAN 
  AND 
  ORANGE 
  COUNTIES 
  

  

  Sullivan 
  co. 
  in 
  southern 
  New 
  York 
  which 
  forms 
  the 
  New 
  

   York 
  border 
  for 
  the 
  greater 
  part 
  of 
  the 
  canon 
  of 
  the 
  Delaware 
  

   river, 
  is 
  covered 
  mostly 
  by 
  rocks 
  belonging 
  in 
  the 
  Catskill 
  forma- 
  

   tion. 
  The 
  central 
  part 
  of 
  Mamakating 
  township 
  however, 
  the 
  

   eastern 
  township 
  of 
  the 
  county, 
  is 
  crossed 
  by 
  the 
  formations 
  of 
  

   the 
  middle 
  Devonian. 
  In 
  Orange 
  co. 
  the 
  same 
  formations 
  

   cross 
  Deer 
  Park, 
  which 
  is 
  its 
  most 
  western 
  township, 
  and 
  enter 
  

   Pennsylvania 
  at 
  Port 
  Jervis. 
  The 
  strike 
  of 
  these 
  formations 
  is 
  

   about 
  parallel 
  with 
  the 
  course 
  of 
  the 
  Basherskill 
  and 
  Neversink 
  

   river 
  across 
  these 
  two 
  counties, 
  and 
  in 
  Pennsylvania 
  with 
  that 
  

   of 
  the 
  Delaware 
  for 
  about 
  20 
  miles. 
  In 
  general 
  the 
  Marcellus 
  

   shale 
  is 
  covered 
  by 
  soil 
  in 
  the 
  valley 
  of 
  the 
  Neversink 
  river, 
  and 
  

   is 
  succeeded 
  to 
  the 
  westward 
  by 
  the 
  Hamilton 
  formation. 
  

  

  . 
  Distribution 
  of 
  the 
  Middle 
  and 
  Upper 
  Devonian 
  

   Along 
  the 
  valley 
  road 
  from 
  Homowack 
  through 
  Phillipsport 
  

   to 
  Summitville 
  the 
  rocks 
  are 
  mainly 
  covered 
  with 
  drift. 
  By 
  the 
  

   side 
  of 
  the 
  road 
  a 
  short 
  distance 
  north 
  of 
  Summitville 
  are 
  blocky 
  

   Hamilton 
  shales 
  which 
  contain 
  a 
  few 
  fossils. 
  

  

  Exposed 
  not 
  far 
  above 
  the 
  Wurtsboro 
  hotel 
  by 
  the 
  side 
  of 
  the 
  

   highway 
  are 
  coarse, 
  massive 
  sandstones 
  which 
  are 
  either 
  in 
  the 
  

   upper 
  part 
  of 
  the 
  Hamilton 
  or 
  near 
  the 
  base 
  of 
  the 
  Sherburne 
  

   formation. 
  Crossing 
  the 
  highway 
  less 
  than 
  one 
  mile 
  northwest 
  

   of 
  Wurtsboro 
  are 
  red 
  shales 
  and 
  sandstones 
  which 
  mark 
  the 
  base 
  

   of 
  the 
  Catskill 
  formation. 
  The 
  dip 
  is 
  between 
  14° 
  and 
  15° 
  N, 
  70° 
  

  

  