﻿FINGER 
  LAKES 
  FAIRCHILD 
  

  

  295 
  

  

  shallow. 
  If 
  the 
  depth 
  of 
  Lake 
  Seneca 
  (618 
  feet) 
  be 
  represented 
  on 
  

   a 
  diagram 
  by 
  1 
  inch, 
  then 
  the 
  length 
  of 
  the 
  lake 
  (36 
  miles) 
  would 
  

   be 
  26 
  feet. 
  On 
  the 
  same 
  scale 
  the 
  length 
  of 
  Cayuga 
  would 
  be 
  

   40 
  feet. 
  And 
  if 
  the 
  depth 
  of 
  Ontario 
  be 
  diagrammed 
  as 
  1 
  foot, 
  the 
  

  

  ''''W^Jfr- 
  M 
  o\r 
  A 
  I 
  N 
  E 
  

  

  Fig. 
  2. 
  — 
  Finger 
  lakes 
  and 
  physiographic 
  belts 
  in 
  central 
  New 
  Yorii 
  

  

  length 
  of 
  the 
  lake 
  would 
  be 
  nearly 
  one-fourth 
  of 
  a 
  mile. 
  Evidently, 
  

   no 
  appeal 
  is 
  necessary 
  to 
  a 
  fanciful 
  deepening 
  by 
  " 
  glacial 
  erosion." 
  

   The 
  singular 
  direction 
  of 
  the 
  central 
  valleys, 
  converging 
  north- 
  

   ward, 
  is 
  an 
  effect 
  of 
  the 
  stream 
  flovv^ 
  being 
  directed 
  by 
  the 
  general 
  

   slope 
  of 
  the 
  broader 
  land 
  surfaces, 
  and 
  the 
  latter 
  being 
  determined 
  

   by 
  the 
  character 
  of 
  the 
  rocks 
  in 
  which 
  the 
  valleys 
  were 
  carved. 
  

  

  