﻿Probable 
  character 
  or 
  surf 
  ace 
  T.-lwnthe 
  Si 
  reetms 
  ^-er-e 
  Iccitl 
  out. 
  

  

  ShoMTinff 
  symmetrtcal 
  profile 
  - 
  the 
  result 
  ofad^'anced 
  

   erosion 
  rf^ithoat 
  ohatitfc 
  of 
  Uvel. 
  

  

  Unequal 
  era 
  f^ion 
  produced 
  hv 
  sliffhi 
  eleT-a^on 
  iofhe 
  north. 
  

  

  Section 
  after 
  Ion 
  ff 
  period 
  of 
  erom 
  on 
  , 
  erosion 
  on 
  nortJie?^n 
  

   slopes 
  7'etarded, 
  on 
  soutJiern, 
  accelerated. 
  

  

  Section 
  as 
  at 
  present. 
  Floor 
  of 
  hard 
  roc 
  ti 
  sM-ept 
  clear 
  of 
  the 
  frible 
  

   shales. 
  Dh^ide 
  on 
  thesordh 
  banh 
  of 
  the 
  northern 
  stream. 
  

  

  ^rviioiis 
  shovi-irfffihe 
  ndaHons, 
  past<?l 
  and 
  present 
  of 
  

   the 
  Sitn 
  JuctJi 
  and 
  Doloros 
  \^alleys, 
  

  

  __-, 
  , 
  -TT-r 
  TTW- 
  AM. 
  PHOTO-LITHO. 
  CO. 
  N.Y.(OSB0PNF.S 
  P<tOCESS.,' 
  

  

  Plate 
  XLIDL 
  

  

  