﻿14 
  Twenty-eighth 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  A 
  visit 
  to 
  the 
  Catskill 
  mountains 
  in 
  1857, 
  also 
  satisfied 
  me 
  

   that 
  the 
  higher 
  part 
  of 
  the 
  range 
  on 
  the 
  south 
  of 
  the 
  Clove 
  

   (and 
  to 
  some 
  extent 
  on 
  the 
  north 
  of 
  this 
  gorge) 
  was 
  composed 
  

   of 
  higher 
  rocks 
  than 
  those 
  referred 
  to 
  the 
  Catskill 
  or 
  Old 
  Red 
  

   sandstone, 
  which 
  latter 
  had 
  been 
  first 
  recognized 
  near 
  Bloss- 
  

   burg 
  in 
  the 
  northern 
  part 
  of 
  Pennsylvania, 
  by 
  its 
  numerous 
  

   remains 
  of 
  Holoptychius. 
  

  

  Therefore, 
  while 
  we 
  had 
  sufficient 
  evidence 
  of 
  the 
  occur- 
  

   rence 
  of 
  old 
  red 
  sandstone 
  in 
  the 
  Catskill 
  mountain 
  range, 
  we 
  

   had 
  not 
  that 
  knowledge 
  which 
  was 
  requisite 
  for 
  its 
  proper 
  and 
  

   satisfactory 
  illustration 
  upon 
  a 
  geological 
  map. 
  In 
  order 
  to 
  

   set 
  at 
  rest 
  this 
  question 
  and 
  to 
  be 
  able 
  to 
  present 
  the 
  real 
  

   expression 
  of 
  this 
  formation 
  upon 
  a 
  map 
  of 
  the 
  State, 
  Mr. 
  

   Sherwood 
  was 
  employed 
  to 
  carry 
  out 
  the 
  proposed 
  investiga- 
  

   tion. 
  

  

  I 
  may 
  mention 
  a 
  few 
  of 
  the 
  general 
  results. 
  The 
  red 
  sand- 
  

   stone 
  or 
  Catskill 
  formation, 
  has 
  been 
  traced 
  from 
  its 
  wider 
  

   extension 
  in 
  Pennsylvania 
  northward 
  into 
  New 
  York, 
  at 
  sev- 
  

   eral 
  points 
  along 
  the 
  border 
  to 
  the 
  west 
  of 
  the 
  Catskill 
  range. 
  

   The 
  same 
  rocks 
  have 
  been 
  traced 
  in 
  several 
  synclinals 
  far 
  into 
  

   the 
  State, 
  in 
  Greene 
  and 
  Chenango 
  counties. 
  On 
  the 
  eastern 
  

   face 
  of 
  the 
  Catskills, 
  in 
  the 
  gorge 
  known 
  as 
  the 
  Clove, 
  the 
  

   same 
  beds 
  have 
  been 
  recognized 
  charged 
  with 
  the 
  remains 
  

   of 
  Holoptychius, 
  similar 
  to 
  those 
  of 
  the 
  beds 
  near 
  Blossburgh, 
  

   Pa., 
  and 
  elsewhere. 
  

  

  These 
  red 
  shaly 
  and 
  marly 
  beds, 
  in 
  alternations 
  with 
  sand- 
  

   stone 
  of 
  more 
  than 
  200 
  feet 
  in 
  thickness, 
  carry 
  these 
  Ichthyic 
  

   remains 
  in 
  the 
  form 
  of 
  fragments 
  of 
  bony 
  plates, 
  scales, 
  etc., 
  

   and 
  remind 
  one 
  strongly 
  of 
  the 
  same 
  beds 
  on 
  the 
  northern 
  out- 
  

   crop 
  of 
  the 
  formation 
  in 
  Tioga 
  county, 
  Pennsylvania. 
  

  

  We 
  have 
  had 
  for 
  some 
  time 
  a 
  nearly 
  entire 
  form 
  of 
  Holop 
  

   tychius 
  in 
  the 
  collections 
  of 
  the 
  State 
  Museum, 
  from 
  Dela- 
  

   ware 
  county, 
  and 
  specimens 
  of 
  scales 
  from 
  the 
  same 
  region. 
  

  

  Not 
  only 
  do 
  we 
  find 
  these 
  fish-beds 
  so 
  well 
  marked 
  in 
  the 
  

   eastern 
  outcrop, 
  but 
  we 
  see 
  the 
  red 
  beds 
  passing 
  upward 
  into 
  

   mottled 
  gray, 
  and 
  generally 
  succeeded 
  by 
  sandstone 
  and 
  con- 
  

   glomerate 
  in 
  alternating 
  beds, 
  the 
  coarser 
  materials 
  increasing 
  

   as 
  we 
  ascend, 
  until 
  the 
  higher 
  part 
  of 
  the 
  mountain 
  becomes 
  

   chiefly 
  composed 
  of 
  gray 
  sandstone 
  and 
  conglomerate 
  — 
  the 
  

   highest 
  exposure 
  giving 
  us 
  440 
  feet 
  of 
  coarse 
  gray 
  sandstone 
  

   and 
  conglomerate 
  to 
  the 
  summit 
  of 
  Round 
  Top. 
  

  

  