﻿154 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  the 
  rocks 
  are 
  evidently 
  in 
  the 
  Ithaca 
  formation. 
  On 
  the 
  highway 
  

   not 
  far 
  from 
  the 
  northern 
  foot 
  of 
  the 
  mound 
  just 
  described 
  are 
  

   bluish 
  shales 
  which 
  break 
  into 
  very 
  small 
  pieces 
  and 
  alternate 
  

   with 
  thick 
  bedded 
  sandstones, 
  No 
  fossils 
  were 
  found 
  and 
  the 
  

   rocks 
  of 
  this 
  outcrop 
  closely 
  resemble 
  those 
  of 
  the 
  Sherburne 
  

   formation. 
  On 
  the 
  highway 
  immediately 
  to 
  the 
  north 
  of 
  Summit 
  

   are 
  bluish 
  arenaceous 
  shales 
  — 
  typical 
  Hamilton 
  — 
  containing 
  

   numerous 
  fossils. 
  The 
  village 
  is 
  certainly 
  situated 
  on 
  rocks 
  of 
  

   the 
  Hamilton 
  formation. 
  A 
  short 
  distance 
  to 
  the 
  northeast 
  of 
  it 
  

   in 
  a 
  sort 
  of 
  basin 
  cut 
  out 
  of 
  Hamilton 
  rocks 
  is 
  a 
  small, 
  very 
  

   pretty, 
  glacial 
  lake, 
  completely 
  surrounded 
  by 
  fields 
  and 
  woods, 
  

   which 
  may 
  very 
  appropriately 
  be 
  called 
  Summit 
  lake. 
  Its 
  outlet 
  

   forms 
  one 
  of 
  the 
  head 
  branches 
  of 
  the 
  Westkill. 
  A 
  view 
  of 
  the 
  

   lake 
  from 
  the 
  high 
  hill 
  to 
  the 
  north 
  is 
  given 
  on 
  one 
  of 
  the 
  plates. 
  

   XXVII 
  D. 
  Two 
  thirds 
  of 
  a 
  mile 
  to 
  the 
  north 
  of 
  Summit 
  and 
  

   Summit 
  lake 
  is 
  a 
  prominent 
  somewhat 
  circular 
  hill 
  which 
  may 
  be 
  

   called 
  Summit 
  hill. 
  From 
  its 
  summit 
  a 
  magnificent 
  view 
  in 
  several 
  

   directions 
  may 
  be 
  had. 
  To 
  the 
  south 
  are 
  the 
  western 
  Catskills 
  of 
  

   Delaware 
  co.; 
  to 
  the 
  southwest 
  is 
  the 
  upper 
  valley 
  of 
  the 
  

   Charlotte 
  river 
  with 
  its 
  maze 
  of 
  hills 
  and 
  to 
  the 
  north 
  and 
  north- 
  

   east 
  is 
  the 
  valley 
  of 
  the 
  Cobleskill 
  lined 
  by 
  its 
  steep 
  hills. 
  From 
  

   this 
  commanding 
  position 
  a 
  clear 
  idea 
  of 
  the 
  irregular 
  surface 
  

   carved 
  out 
  of 
  this 
  plateau 
  by 
  the 
  streams 
  may 
  be 
  obtained. 
  On 
  

   the 
  highway 
  where 
  the 
  descent 
  begins 
  toward 
  the 
  Cobleskill 
  at 
  

   Kichmondville 
  are 
  bluish 
  arenaceous 
  shales 
  containing 
  an 
  abun- 
  

   dant 
  Hamilton 
  fauna. 
  From 
  the 
  highway 
  a 
  section 
  was 
  con- 
  

   structed 
  along 
  the 
  quarry 
  road 
  up 
  the 
  southern 
  side 
  of 
  the 
  hill. 
  

   The 
  first 
  100 
  feet 
  are 
  covered 
  and 
  then 
  for 
  a 
  few 
  feet 
  there 
  are 
  

   smooth, 
  bluish 
  shales 
  without 
  fossils. 
  At 
  an 
  elevation 
  of 
  115 
  

   feet 
  rather 
  coarse, 
  bluish, 
  arenaceous 
  shales 
  begin 
  (D 
  2 
  ) 
  resem- 
  

   bling 
  the 
  Hamilton 
  shales 
  in 
  all 
  respects. 
  There 
  are 
  15 
  feet 
  of 
  

   these 
  shales 
  containing 
  numerous 
  specimens 
  of 
  Hamilton 
  fossils. 
  

   This 
  zone 
  is 
  still 
  in 
  the 
  Hamilton 
  formation, 
  although 
  very 
  near 
  

   its 
  summit. 
  The 
  complete 
  list 
  of 
  species 
  collected 
  in 
  D 
  2 
  is 
  as 
  

   follows: 
  

  

  