﻿REPORT 
  OF 
  THE 
  DIRECTOR 
  rill 
  

  

  following 
  elevations 
  above 
  sea 
  level; 
  lake 
  Ithaca 
  985 
  feet, 
  lake 
  

   Newberry 
  920 
  and 
  lake 
  Warren 
  825 
  feet. 
  The 
  same 
  levels 
  marked 
  

   on 
  the 
  most 
  northerly 
  stream 
  which 
  is 
  Trumansburg 
  creek, 
  have 
  the 
  

   following 
  elevations; 
  lake 
  Ithaca 
  1047 
  feet, 
  lake 
  Newberry 
  919 
  

   feet 
  and 
  lake 
  Warren 
  868 
  feet. 
  

  

  In 
  a 
  comparison 
  of 
  the 
  above 
  figures 
  a 
  difference 
  of 
  62 
  feet 
  in 
  

   elevation 
  is 
  noted 
  for 
  lake 
  Ithaca 
  in 
  a 
  northward 
  direction, 
  a 
  differ- 
  

   ence 
  of 
  — 
  1 
  foot 
  for 
  lake 
  Newberry, 
  and 
  of 
  43 
  feet 
  in 
  the 
  same 
  

   direction 
  for 
  lake 
  Warren. 
  The 
  distance 
  between 
  these 
  two 
  

   streams, 
  which 
  are 
  on 
  the 
  west 
  side 
  of 
  the 
  lake 
  and 
  in 
  an 
  almost 
  due 
  

   north 
  and 
  south 
  line, 
  is 
  some 
  20 
  miles. 
  The 
  differences 
  correspond 
  

   therefore, 
  to 
  a 
  gradient 
  of 
  3.1 
  feet 
  ; 
  — 
  .05 
  feet 
  ; 
  and 
  2.15 
  feet 
  per 
  mile, 
  

   respectively, 
  for 
  the 
  three 
  levels. 
  The 
  figures 
  show 
  furthermore 
  

   that 
  the 
  levels 
  are 
  not 
  equidistant 
  from 
  each 
  other 
  in 
  the 
  two 
  locali- 
  

   ties, 
  but 
  indicate 
  in 
  tha 
  case 
  of 
  lakes 
  Ithaca 
  and 
  Warren 
  an 
  increased 
  

   northward 
  rise, 
  while 
  a 
  small 
  negative 
  result 
  is 
  indicated 
  for 
  

   lake 
  Newberry. 
  

  

  A 
  similar 
  comparison 
  is 
  likewise 
  given 
  for 
  the 
  same 
  levels 
  in 
  

   the 
  Seneca 
  basin. 
  The 
  streams 
  best 
  suited 
  for 
  the 
  comparison 
  are 
  

   unfortunately 
  not 
  on 
  the 
  same 
  side 
  of 
  the 
  basin, 
  but 
  the 
  width 
  of 
  

   the 
  valley 
  in 
  cross-section 
  is 
  not 
  very 
  great 
  and 
  probably 
  will 
  not 
  

   materially 
  affect 
  the 
  results, 
  since 
  the 
  streams 
  are 
  approximately 
  in 
  a 
  

   north 
  and 
  south 
  line. 
  Watkins 
  glen 
  stream 
  is 
  the 
  most 
  southerly 
  

   one 
  showing 
  these 
  levels 
  with 
  the 
  following 
  elevations 
  ; 
  lake 
  

   Watkins 
  969 
  feet, 
  lake 
  Newberry 
  925 
  feet, 
  and 
  lake 
  Warren 
  803 
  

   feet. 
  The 
  elevations 
  corresponding 
  to 
  the 
  same 
  levels 
  on 
  Lodi 
  

   creek 
  are 
  lake 
  Watkins 
  1015 
  feet, 
  lake 
  Newberry 
  940 
  feet 
  and 
  lake 
  

   Warren 
  840 
  feet. 
  The 
  figures 
  here 
  indicate 
  a 
  general 
  northward 
  rise 
  

   in 
  the 
  levels 
  of 
  the 
  three 
  lake 
  stages. 
  In 
  the 
  case 
  of 
  lake 
  Watkins 
  

   the 
  difference 
  is 
  46 
  feet, 
  of 
  Newberry 
  15 
  feet^ 
  and 
  of 
  AYarren 
  37 
  

   feet, 
  corresponding 
  to 
  a 
  northward 
  rise 
  of 
  3, 
  1 
  and 
  2.5 
  feet 
  per 
  mile 
  

   for 
  the 
  respective 
  levels. 
  As 
  in 
  the 
  case 
  of 
  the 
  Cayuga 
  basin, 
  the 
  

   same 
  levels 
  in 
  the 
  Seneca 
  basin 
  show 
  an 
  unequal 
  distance 
  between 
  

   the 
  levels 
  for 
  the 
  two 
  streams 
  and 
  a 
  rising 
  to 
  the 
  north. 
  

  

  The 
  apparent 
  warping 
  of 
  the 
  shore-lines, 
  if 
  such 
  it 
  be, 
  is 
  even 
  

   more 
  irregular 
  when 
  shorter 
  distances 
  are 
  taken, 
  the 
  gradient 
  being 
  

   sometimes 
  greater 
  and 
  sometimes 
  less, 
  than 
  is 
  shown 
  above. 
  

  

  