﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  501 
  

  

  In 
  July, 
  1900, 
  the 
  mean 
  flow 
  was 
  720 
  cubic 
  feet 
  per 
  second; 
  

   in 
  August, 
  551 
  cubic 
  feet 
  per 
  second, 
  and 
  in 
  September, 
  471 
  cubic 
  

   feet 
  per 
  second. 
  

  

  Since 
  the 
  catchment 
  area 
  at 
  Baldwinsville 
  is 
  3103 
  square 
  miles, 
  

   the 
  flow 
  for 
  the 
  entire 
  month 
  of 
  August, 
  1899, 
  of 
  455 
  cubic 
  feet 
  

   per 
  second 
  was 
  at 
  the 
  rate 
  of 
  less 
  than 
  0.15 
  cubic 
  foot 
  per 
  second 
  

   per 
  square 
  mile. 
  For 
  several 
  days 
  in 
  August 
  and 
  September, 
  1899, 
  

   the 
  flow 
  was 
  very 
  much 
  smaller 
  than 
  the 
  average, 
  but 
  it 
  does 
  not 
  

   seem 
  proper 
  to 
  consider 
  the 
  flow 
  of 
  single 
  days 
  in 
  estimating 
  the 
  

   minimum 
  flow 
  of 
  a 
  stream 
  like 
  Seneca 
  river. 
  The 
  small 
  summer 
  

   flows 
  in 
  this 
  stream 
  are 
  largely 
  due 
  to 
  heavy 
  evaporation 
  from 
  

   the 
  marsh 
  areas 
  above 
  Baldwinsville. 
  

  

  Minimum 
  floiv 
  of 
  west 
  branch 
  of 
  Fish 
  creek. 
  In 
  July, 
  1900, 
  

   the 
  mean 
  flow 
  of 
  this 
  stream 
  for 
  the 
  entire 
  month 
  at 
  McConnells- 
  

   ville 
  was 
  60 
  cubic 
  feet 
  per 
  second, 
  and 
  in 
  August 
  it 
  was 
  57 
  cubic 
  

   feet 
  per 
  second 
  (catchment, 
  187 
  square 
  miles), 
  or 
  the 
  flow 
  for 
  

   these 
  two 
  months 
  was 
  at 
  the 
  rate 
  of 
  about 
  0.3 
  cubic 
  foot 
  per 
  

   second 
  per 
  square 
  mile. 
  Undoubtedly 
  the 
  extreme 
  minimum 
  flows 
  

   of 
  this 
  stream 
  are 
  less 
  than 
  0.2 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  

   mile, 
  since 
  for 
  six 
  days 
  in 
  December, 
  1900, 
  the 
  mean 
  flow 
  was 
  only 
  

   36 
  cubic 
  feet 
  per 
  second 
  or 
  at 
  the 
  rate 
  of 
  0.19 
  cubic 
  foot 
  per 
  second 
  

   per 
  square 
  mile. 
  It 
  is 
  possible 
  that 
  the 
  extreme 
  minimum 
  may 
  

   perhaps 
  be 
  placed 
  as 
  low 
  as 
  0.12 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  

   mile 
  for 
  a 
  week 
  at 
  a 
  time. 
  

  

  Minimum 
  floto 
  of 
  Salmon 
  river 
  west. 
  The 
  lowest 
  recorded 
  flow 
  

   of 
  this 
  stream 
  is 
  75 
  cubic 
  feet 
  per 
  second 
  for 
  five 
  days 
  in 
  Sep- 
  

   tember, 
  1900. 
  Since 
  the 
  catchment 
  area 
  at 
  Pulaski,- 
  where 
  the 
  

   measurements 
  are 
  made, 
  is 
  264 
  square 
  miles, 
  this 
  flow 
  would 
  be 
  

   at 
  the 
  rate 
  of 
  0.28 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  Prob- 
  

   ably 
  the 
  extreme 
  minimum 
  flow 
  of 
  this 
  stream 
  will 
  go 
  as 
  low 
  as 
  

   0.22 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  

  

  There 
  are 
  a 
  number 
  of 
  streams 
  to 
  the 
  north 
  of 
  Salmon 
  river, 
  be- 
  

   tween 
  there 
  and 
  Black 
  river, 
  as 
  for 
  instance 
  the 
  north 
  branch 
  of 
  

   Sandy 
  creek, 
  of 
  which 
  the 
  minimum 
  flows 
  are 
  exceedingly 
  small. 
  

   As 
  observed 
  by 
  the 
  writer 
  in 
  the 
  fall 
  of 
  1898 
  these 
  streams 
  were 
  

   substantially 
  dry, 
  the 
  flow 
  of 
  several 
  of 
  them 
  not 
  exceeding 
  20 
  

   cubic 
  feet 
  per 
  second. 
  Their 
  minimum 
  flows 
  are 
  as 
  low 
  as 
  0.05 
  

   cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  Their 
  headwaters 
  lie 
  in 
  a 
  

   deforested 
  country 
  in 
  the 
  horizon 
  of 
  the 
  Hudson 
  river 
  shales 
  and 
  

   Trenton 
  limestone. 
  

  

  