﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  755 
  

  

  diverted 
  to 
  the 
  north, 
  and 
  108 
  cubic 
  feet 
  per 
  second, 
  less 
  the 
  loss 
  

   from 
  evaporation, 
  etc., 
  is 
  returned 
  to 
  the 
  river 
  at 
  the 
  Saratoga 
  

   dam. 
  

  

  Taking 
  into 
  account 
  the 
  losses 
  from 
  evaporation 
  and 
  absorp- 
  

   tion 
  by 
  vegetation 
  during 
  the 
  summer 
  months, 
  we 
  may 
  place 
  the 
  

   demands 
  for 
  the 
  Ohamplain 
  canal 
  during 
  the 
  months 
  of 
  canal 
  

   navigation 
  at 
  the 
  following 
  approximate 
  monthly 
  means. 
  These 
  

   figures 
  are 
  roughly 
  proportional 
  to 
  evaporation 
  from 
  a 
  water 
  

   surface: 
  _ 
  .. 
  . 
  „ 
  

  

  Cubic 
  feet 
  

   i 
  per 
  second 
  

  

  May 
  553 
  

  

  June 
  600 
  

  

  July 
  600 
  

  

  August 
  600 
  

  

  September 
  553 
  

  

  October 
  510 
  

  

  November 
  495 
  

  

  With 
  the 
  leakage 
  of 
  the 
  Glens 
  Falls 
  feeder 
  done 
  away 
  with, 
  the 
  

   foregoing 
  figures 
  may 
  be 
  reduced 
  about 
  200 
  cubic 
  feet 
  per 
  second 
  

   for 
  each 
  month. 
  For 
  the 
  section 
  of 
  the 
  Ohamplain 
  canal 
  from 
  

  

  (feaSL=L 
  

  

  CAPA 
  C 
  /TY 
  8.00O 
  BUSHEL3 
  OF 
  WHEAT 
  

   240 
  TONS 
  

  

  Fig. 
  52 
  Boat 
  used 
  after 
  enlargement 
  was 
  completed 
  in 
  1862. 
  

  

  Northumberland 
  to 
  Cohoes 
  we 
  may 
  assume 
  the 
  water 
  supply 
  of 
  

   the 
  enlarged 
  canal 
  at 
  about 
  255 
  cubic 
  feet 
  per 
  second 
  in 
  May, 
  

   October, 
  and 
  November, 
  and 
  at 
  about 
  280 
  to 
  290 
  cubic 
  feet 
  per 
  

   second 
  in 
  June, 
  July, 
  August 
  and 
  September. 
  

  

  Middle 
  division 
  of 
  Erie 
  canal. 
  This 
  division 
  comprises 
  that 
  

   portion 
  of 
  the 
  Erie 
  canal 
  lying 
  between 
  the 
  east 
  line 
  of 
  Oneida 
  

   county 
  and 
  the 
  east 
  line 
  of 
  Wayne 
  county, 
  as 
  well 
  as 
  the 
  Oswego 
  

   canal 
  from 
  Syracuse 
  to 
  Oswego, 
  the 
  Baldwinsville 
  side 
  cut, 
  the 
  

   Oaynga 
  and 
  Seneca 
  canal, 
  the 
  Black 
  River 
  canal, 
  and 
  other 
  short 
  

  

  