﻿of 
  the 
  Northern 
  Appalachians. 
  

  

  255 
  

  

  terraces 
  on 
  differences 
  in 
  the 
  rock 
  formations 
  is 
  one 
  of 
  

   the 
  reasons 
  for 
  considering- 
  that 
  the 
  terraces 
  conld 
  not 
  

   have 
  been 
  formed 
  in 
  the 
  first 
  place 
  by 
  subaerial 
  erosion 
  

   even 
  though 
  the 
  evidence 
  of 
  such 
  erosion 
  may 
  now 
  be 
  

   predominant. 
  

  

  Figure 
  6 
  shows 
  the 
  relative 
  extent 
  of 
  remnants 
  of 
  the 
  

   Cornwall 
  terrace 
  between 
  the 
  elevations 
  of 
  1,600 
  and 
  

   1,680 
  feet 
  (solid 
  black) 
  and 
  of 
  the 
  Goshen 
  terrace 
  

   between 
  1,300 
  and 
  1,380 
  feet 
  (diagonal 
  ruled) 
  in 
  practi- 
  

  

  Fig. 
  6. 
  

  

  Fig. 
  6. 
  — 
  Map 
  showing 
  remnants 
  of 
  the 
  Cornwall 
  terrace 
  between 
  1,600 
  

   and 
  1,680 
  feet 
  (solid 
  black) 
  and 
  remnants 
  of 
  the 
  Goshen 
  terrace 
  between 
  

   1,300 
  and 
  1,380 
  feet 
  (diagonal 
  ruled). 
  

  

  cally 
  the 
  same 
  area 
  covered 
  by 
  the 
  preceding 
  profile. 
  

   The 
  sinuous 
  line 
  which 
  crosses 
  the 
  map 
  marks 
  the 
  posi- 
  

   tion 
  of 
  the 
  Goshen 
  shore-line. 
  When 
  it 
  is 
  considered 
  

   that 
  the 
  remnants 
  of 
  each 
  terrace 
  embrace 
  an 
  equal 
  

   range 
  in 
  elevation, 
  namely, 
  80 
  feet, 
  it 
  is 
  seen 
  that 
  the 
  

   Goshen 
  terrace 
  is 
  very 
  much 
  better 
  preserved 
  than 
  the 
  

   Cornwall. 
  After 
  viewing 
  the 
  country 
  from 
  the 
  summit 
  

   of 
  Ivy 
  Mountain 
  Professor 
  Barrell 
  noted 
  that 
  "The 
  

   regions 
  to 
  the 
  north 
  and 
  south 
  look 
  entirely 
  different. 
  

   To 
  the 
  south 
  the 
  Goshen 
  plain 
  lies 
  300 
  feet 
  below 
  and 
  ex- 
  

  

  