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  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  have 
  been 
  able 
  to 
  secure 
  by 
  artificial 
  means 
  from 
  other 
  species, 
  and 
  also 
  

   that 
  the 
  parental 
  instinct 
  is 
  unusually 
  developed. 
  The 
  first 
  conditions 
  

   make 
  pond-culture 
  necessary 
  and 
  the 
  second 
  render 
  it 
  possible. 
  The 
  

   methods 
  hereafter 
  described 
  are 
  those 
  in 
  use 
  at 
  Keosho 
  station. 
  

  

  ARTIFICIAL 
  PONDS 
  FOR 
  REARING 
  BASS. 
  

  

  The 
  size 
  of 
  spawning-ponds 
  is 
  controlled, 
  to 
  a 
  certain 
  extent, 
  by 
  cir- 
  

   cumstances. 
  Small 
  ponds 
  which 
  are 
  long 
  and 
  narrow, 
  with 
  the 
  inlet 
  

  

  Plan 
  of 
  Neosho 
  Station, 
  showing 
  shape 
  and 
  depth 
  of 
  ponds, 
  with 
  location 
  of 
  hatchery 
  

   and 
  superintendent's 
  dwelling. 
  

  

  at 
  one 
  end 
  and 
  the 
  outlet 
  at 
  the 
  other 
  in 
  the 
  line 
  of 
  the 
  longest 
  axis, 
  

   produce 
  the 
  best 
  results, 
  as 
  the 
  strength 
  of 
  the 
  current 
  can 
  be 
  better 
  

   controlled, 
  and 
  the 
  whole 
  pond 
  regulated 
  under 
  the 
  scrutiny 
  of 
  attend- 
  

  

  