﻿506 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  In 
  the 
  water 
  year, 
  1880, 
  the 
  flow 
  for 
  the 
  growing 
  and 
  replenish- 
  

   ing 
  periods 
  was 
  as 
  follows 
  : 
  

  

  Cubic 
  feet 
  

   per 
  second 
  

  

  June 
  138 
  

  

  July 
  : 
  138 
  

  

  August 
  132 
  

  

  September 
  , 
  132 
  

  

  October 
  130 
  

  

  November 
  152 
  

  

  Mean 
  137 
  

  

  The 
  flow 
  for 
  the 
  following 
  month 
  of 
  December 
  was 
  138 
  cubic 
  

   feet 
  per 
  second. 
  The 
  entire 
  flow 
  for 
  the 
  Avater 
  year 
  1880 
  was 
  365 
  

   cubic 
  feet 
  per 
  second. 
  

  

  In 
  the 
  year 
  1881 
  the 
  mean 
  flow 
  for 
  the 
  replenishing 
  period 
  was 
  

   129 
  cubic 
  feet 
  per 
  second. 
  

  

  In 
  the 
  year 
  1883 
  the 
  mean 
  flow 
  for 
  the 
  entire 
  year 
  was 
  363 
  

   cubic 
  feet 
  per 
  second. 
  Attention 
  may 
  be 
  directed 
  to 
  the 
  fact 
  

   that 
  the 
  flow 
  of 
  the 
  storage 
  period 
  will 
  chiefly 
  determine 
  

   whether 
  the 
  mean 
  flow 
  for 
  the 
  whole 
  year 
  is 
  large 
  or 
  small. 
  Thus, 
  

   in 
  1880, 
  the 
  mean 
  flow 
  for 
  the 
  storage 
  period 
  was 
  592 
  cubic 
  feet 
  

   per 
  second 
  and 
  in 
  1883, 
  572 
  cubic 
  feet 
  per 
  second. 
  The 
  maximum 
  

   flow 
  of 
  the 
  storage 
  period 
  from 
  1868-1899, 
  inclusive, 
  occurred 
  in 
  

   1888 
  and 
  was 
  1137 
  cubic 
  feet 
  per 
  second. 
  In 
  1888 
  the 
  mean 
  flow 
  

   for 
  the 
  entire 
  year 
  was 
  838 
  cubic 
  feet 
  per 
  second, 
  which 
  is 
  the 
  

   maximum 
  mean 
  yearly 
  flow 
  for 
  the 
  entire 
  period 
  covered 
  by 
  the 
  

   gagings. 
  

  

  The 
  lowest 
  mean 
  monthly 
  flow 
  for 
  the 
  entire 
  period 
  was 
  in 
  Sep- 
  

   tember, 
  1869, 
  and 
  was 
  54 
  cubic 
  feet 
  per 
  second, 
  or 
  at 
  the 
  rate 
  of 
  

   0.16 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  Probably 
  the 
  flow 
  of 
  

   the 
  Croton 
  river 
  for 
  several 
  days 
  during 
  these 
  periods 
  did 
  not 
  

   exceed 
  0.1 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  

  

  According 
  to 
  J. 
  J. 
  R. 
  Croes, 
  the 
  minimum 
  flow 
  of 
  the 
  west 
  

   branch 
  of 
  the 
  Croton 
  river, 
  with 
  a 
  catchment 
  area 
  of 
  20.4 
  square 
  

   miles, 
  is 
  0.02 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile. 
  

  

  Minimum 
  flow 
  of 
  Fishkill 
  creek. 
  The 
  lowest 
  flow 
  of 
  this 
  stream 
  

   thus 
  far 
  observed 
  was 
  on 
  August 
  26, 
  1902, 
  and 
  was 
  at 
  the 
  rate 
  of 
  

  

  