﻿754 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  that 
  this 
  leakage, 
  which 
  is 
  practically 
  all 
  below 
  the 
  falls, 
  is 
  a 
  

   detriment 
  to 
  their 
  waterpower 
  which 
  ought 
  not 
  to 
  exist. 
  In 
  

   order 
  to 
  determine 
  the 
  amount 
  of 
  this 
  leakage, 
  as 
  well 
  as 
  the 
  

   relation 
  which 
  it 
  bears 
  to 
  the 
  question 
  of 
  a 
  material 
  increase 
  in 
  

   the 
  flow 
  of 
  the 
  Hudson 
  river 
  by 
  storage, 
  a 
  series 
  of 
  measurements 
  

   of 
  the 
  flow 
  of 
  the 
  feeder 
  was 
  undertaken 
  early 
  in 
  October, 
  1895. 
  

  

  Arrangements 
  having 
  been 
  made 
  with 
  the 
  division 
  superin- 
  

   tendent 
  to 
  maintain 
  a 
  uniform 
  feed 
  for 
  several 
  days 
  before 
  the 
  

   measurements 
  began, 
  as 
  well 
  as 
  during 
  the 
  days 
  when 
  they 
  were 
  

   actually 
  being 
  made, 
  and 
  points 
  established 
  for 
  verifying 
  the 
  

   uniformity 
  of 
  the 
  flow 
  during 
  the 
  time 
  of 
  the 
  measurements, 
  a 
  

   series 
  of 
  accurate 
  sections 
  was 
  then 
  made 
  at 
  points 
  both 
  above 
  

   and 
  below 
  the 
  leakage, 
  and 
  a 
  large 
  number 
  of 
  current-meter 
  

   readings 
  taken 
  from 
  a 
  footbridge 
  thrown 
  temporarily 
  across 
  the 
  

   feeder 
  at 
  each 
  section. 
  The 
  results 
  so 
  obtained 
  are 
  as 
  follows: 
  

  

  1) 
  On 
  October 
  8, 
  1895, 
  the 
  flow 
  in 
  the 
  feeder 
  just 
  below 
  the 
  

   guard 
  lock 
  at 
  the 
  feeder 
  dam, 
  above 
  all 
  serious 
  leaks, 
  was 
  383 
  

   cubic 
  feet 
  per 
  second. 
  

  

  2) 
  On 
  the 
  same 
  day 
  the 
  flow 
  at 
  change 
  bridge 
  No. 
  13, 
  about 
  

   one-half 
  mile 
  from 
  the 
  feeder 
  dam, 
  above 
  all 
  serious 
  leaks, 
  was 
  

   364 
  cubic 
  feet 
  per 
  second. 
  

  

  3) 
  On 
  October 
  9 
  and 
  10 
  the 
  flow 
  a 
  short 
  distance 
  below 
  all 
  

   serious 
  leaks 
  was 
  213 
  cubic 
  feet 
  per 
  second. 
  

  

  4) 
  On 
  October 
  10 
  the 
  flow 
  about 
  half 
  a 
  mile 
  farther 
  down 
  was 
  

   191 
  cubic 
  feet 
  per 
  second. 
  

  

  5) 
  On 
  October 
  11 
  the 
  flow 
  just 
  above 
  the 
  locks 
  at 
  Sandy 
  Hill 
  

   was 
  182 
  cubic 
  feet 
  per 
  second. 
  

  

  6) 
  A 
  section, 
  also 
  taken 
  October 
  11, 
  in 
  the 
  Ohamplain 
  canal, 
  a 
  

   short 
  distance 
  north 
  of 
  where 
  the 
  feeder 
  enters, 
  shows 
  that 
  the 
  

   amount 
  of 
  water 
  passing 
  to 
  the 
  north 
  at 
  that 
  time 
  was 
  74 
  cubic 
  

   feet 
  per 
  second. 
  

  

  These 
  measurements 
  show 
  that 
  the 
  loss 
  between 
  sections 
  1 
  

   and 
  5, 
  which 
  may 
  be 
  taken 
  as 
  including 
  about 
  all 
  the 
  losses 
  from 
  

   the 
  feeder, 
  is 
  201 
  cubic 
  feet 
  per 
  second. 
  The 
  water 
  delivered 
  

   into 
  the 
  Champlain 
  canal 
  is 
  therefore 
  only 
  about 
  47 
  per 
  cent 
  of 
  the 
  

   quantity 
  entering 
  the 
  feeder 
  at 
  the 
  guard 
  lock. 
  The 
  measure- 
  

   ments 
  also 
  show 
  that 
  of 
  the 
  182 
  cubic 
  feet 
  per 
  second 
  actually 
  

   delivered 
  to 
  the 
  Champlain 
  canal 
  74 
  cubic 
  feet 
  per 
  second 
  is 
  

  

  