﻿183 
  

  

  In 
  loose 
  blocks 
  in 
  the 
  Mill 
  creek 
  valley 
  probably 
  carried 
  down 
  

   by 
  the 
  creek, 
  the 
  following 
  Hamilton 
  species 
  were 
  collected 
  : 
  

  

  1 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  (a) 
  

  

  Specimens 
  of 
  the 
  very 
  mucronate 
  type. 
  

  

  2 
  Chonetes 
  coronata 
  (Con.) 
  Hall 
  (rr) 
  

  

  3 
  CamarotoecJiia 
  congregate/, 
  (Con.) 
  H. 
  & 
  C. 
  (c) 
  

  

  To 
  the 
  southwest 
  of 
  Mill 
  creek 
  is 
  Vroman's 
  Nose 
  which 
  rises 
  

   some 
  600 
  feet 
  above 
  the 
  level 
  of 
  the 
  Schoharie 
  river. 
  The 
  lower 
  

   part 
  of 
  the 
  southern 
  face 
  has 
  a 
  steep 
  slope 
  largely 
  covered 
  by 
  

   debris 
  from 
  the 
  upper 
  part 
  of 
  the 
  hill, 
  while 
  the 
  upper 
  portion 
  

   is 
  a 
  perpendicular 
  cliff 
  composed 
  mainly 
  of 
  coarse, 
  arenaceous 
  

   shales 
  and 
  sandstones. 
  It 
  is 
  certainly 
  a 
  commanding 
  hill 
  when 
  

   seen 
  from 
  its 
  foot 
  or 
  at 
  Middleburg, 
  and 
  when 
  seen 
  from 
  the 
  

   much 
  higher 
  hills 
  to 
  the 
  southwest 
  it 
  looks 
  like 
  a 
  hill 
  blocking 
  

   the 
  Schoharie 
  valley. 
  A 
  picture 
  of 
  this 
  hill 
  which, 
  unfortunately, 
  

   like 
  photographs 
  since 
  taken 
  does 
  not 
  give 
  a 
  very 
  distinct 
  im- 
  

   pression 
  appears 
  in 
  Emmons' 
  Agriculture 
  of 
  Neio 
  Tork. 
  a 
  The 
  hill 
  

   was 
  studied 
  in 
  a 
  rather 
  hurried 
  manner 
  but, 
  approximately 
  250 
  

   feet 
  above 
  the 
  river 
  is 
  the 
  base 
  of 
  the 
  rocks 
  which 
  continue 
  for 
  

   370 
  feet 
  to 
  the 
  top 
  of 
  the 
  hill, 
  (A 
  4 
  ). 
  The 
  lower 
  rocks 
  are 
  dark 
  

   gray 
  shales 
  above 
  which 
  toward 
  the 
  top 
  of 
  the 
  hill 
  are 
  rather 
  

   blocky 
  shales 
  and 
  thin 
  sandstones. 
  Hamilton 
  fossils 
  occur 
  in 
  

   the 
  shales 
  in 
  moderate 
  abundance 
  while 
  in 
  some 
  of 
  the 
  coarse, 
  

   shaly 
  sandstones 
  there 
  are 
  numerous 
  specimens 
  of 
  Spirophyton 
  

   and 
  Spirifei- 
  granulosus 
  (Con.) 
  H. 
  & 
  C. 
  These 
  rocks 
  all 
  belong 
  

   in 
  the 
  lower 
  part 
  of 
  the 
  Hamilton 
  formation 
  and 
  according 
  tc* 
  

   the 
  Sherwood 
  measured 
  section 
  there 
  are 
  372 
  feet 
  exposed 
  in 
  

   the 
  hill, 
  below 
  which 
  are 
  about 
  200 
  feet 
  covered. 
  6 
  On 
  the 
  bare 
  

   sandstone 
  ledge 
  at 
  the 
  summit 
  of 
  the 
  hill 
  are 
  conspicuous 
  glacial 
  

   striae, 
  some 
  of 
  them 
  quite 
  deep, 
  which 
  run 
  W 
  10° 
  S. 
  

  

  The 
  following 
  is 
  an 
  approximate 
  section 
  of 
  Vroman's 
  Nose. 
  

  

  ov. 
  1, 
  plate 
  6. 
  

   , 
  b 
  Proc. 
  Amer, 
  philosophical 
  society. 
  17 
  : 
  348 
  

  

  