﻿\v 
  

  

  the 
  accnmiKinyiTiu' 
  cut, 
  vvhicli 
  iv|,ivseijts 
  ;i 
  tisliway 
  dis- 
  

   charging 
  a 
  \'(»limu* 
  of 
  wai>'r 
  hrtm 
  ri 
  to 
  I.") 
  inches 
  di-ep 
  and 
  

   ten 
  feet 
  wide. 
  

  

  €1^^^ 
  ^ 
  ^^S. 
  

  

  

  .S^jiler: 
  -'5^ 
  

  

  McDonald 
  fis'//wa 
  y. 
  

  

  For 
  economy 
  of 
  water 
  sii])i>ly 
  at 
  low 
  stages 
  of 
  water, 
  

   the 
  niicUlle 
  section 
  live 
  feet 
  in 
  width 
  is 
  depi-essed 
  below 
  

   the 
  plane 
  of 
  the 
  sides, 
  so 
  that 
  only 
  this 
  middle 
  section 
  

   takes 
  water 
  when 
  the 
  i-iver 
  is 
  low. 
  In 
  full 
  stages 
  of 
  

   water 
  the 
  whole 
  hreadth 
  (»f 
  the 
  lisliway 
  discliai'ges. 
  

  

  Fishways 
  should 
  always, 
  when 
  i>iactical>le. 
  be 
  ]-ecessed 
  

   into 
  the 
  dam. 
  so 
  that 
  the 
  discharge 
  from 
  the 
  loAver 
  end 
  

   of 
  the 
  Mshway 
  will 
  b<- 
  on 
  a 
  line 
  with 
  the 
  lowei' 
  face 
  of 
  the 
  

   dam. 
  Where 
  not 
  practica1>le 
  to 
  iv^-ess 
  the 
  li.shway 
  as 
  

   indicated, 
  then 
  it 
  should 
  be 
  j. 
  laced 
  next 
  to 
  the 
  bank 
  and 
  

   a 
  sloping 
  apron 
  ])laee(l 
  in 
  the 
  augh^ 
  between 
  the 
  li.shway 
  

   and 
  the 
  (him. 
  so 
  as 
  to 
  establish 
  :iii 
  uninterrupted 
  line 
  of 
  

   overfidl 
  froui 
  the 
  uionfh 
  of 
  the 
  !ishw;iv 
  to 
  the 
  (htm. 
  This 
  

  

  