﻿XCIX 
  

  

  The 
  "ovei'tiow"" 
  may 
  ])e 
  omitted, 
  if 
  desired, 
  as 
  the 
  

   "flume" 
  ran 
  be 
  readily 
  adapted 
  to 
  the 
  purposes 
  of 
  car- 
  

   rying 
  (.)1f 
  any 
  surplus 
  water. 
  As 
  the 
  flume, 
  however, 
  

   requires 
  c<msta]it 
  attention 
  to 
  insure 
  its 
  operation, 
  the 
  

   "overflow" 
  ■ 
  should 
  he 
  retained, 
  if 
  practicable, 
  in 
  which 
  

   event 
  it 
  is 
  of 
  even 
  greater 
  importance 
  than 
  in 
  the 
  case 
  of 
  

   the 
  ponds 
  already 
  described 
  that 
  it 
  should 
  be 
  placed 
  in 
  

   firm 
  STound. 
  

  

  Tlit- 
  accompanying 
  diagrams 
  represent 
  a 
  vertical 
  sec- 
  

   tion, 
  and 
  corresponding 
  horizimtal 
  projection 
  of 
  the 
  

   embankment, 
  ^—showing 
  the 
  position 
  of 
  the 
  flume, 
  F, 
  

   and 
  its 
  controlling 
  valves, 
  d. 
  d; 
  together 
  with 
  that 
  of 
  

   the 
  crib- 
  work, 
  ''('. 
  (\ 
  CV 
  which 
  is 
  constructed 
  on 
  the 
  

   pond 
  side, 
  and 
  is 
  designed 
  to 
  supjiort 
  the 
  screens 
  em- 
  

   ployed 
  to 
  lire 
  vent 
  the 
  escape 
  of 
  the 
  Carp 
  and 
  the 
  ingress 
  

   of 
  other 
  fish. 
  

  

  The 
  flume 
  is 
  placed, 
  as 
  before, 
  on 
  a 
  level 
  with 
  the 
  bot- 
  

  

  