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  of 
  the 
  water 
  is 
  kept 
  up 
  by 
  the 
  arrangement 
  referred 
  to. 
  

   The 
  thorough 
  efficiency 
  of 
  this 
  apparatus 
  was 
  demonstrated 
  

   last 
  spring, 
  as 
  in 
  the 
  five 
  tanks 
  shown 
  in 
  tlic 
  drawling, 
  over 
  

   a 
  million 
  of 
  eggs 
  were 
  easily 
  kept 
  during 
  twelve 
  or 
  fifteen 
  

   hours, 
  until 
  the 
  central 
  hatching 
  a[)paratus 
  was 
  reached 
  ; 
  

   and, 
  in 
  some 
  cases, 
  several 
  hundred 
  thousand 
  eggs 
  were 
  kept 
  

   in 
  these 
  tanks 
  from 
  tlic 
  time 
  they 
  w^ere 
  taken 
  until 
  com- 
  

   pletely 
  developed 
  and 
  the 
  fish 
  disiributed. 
  

  

  These 
  vessels 
  were 
  also 
  very 
  efficient 
  for 
  transferring 
  the 
  

   young 
  fish 
  from 
  one 
  portion 
  of 
  the 
  State 
  to 
  another. 
  In 
  

   this 
  constant 
  circulation 
  of 
  the 
  water, 
  the 
  fish 
  can 
  be 
  trans- 
  

   ferred 
  ranch 
  better 
  than 
  in 
  the 
  ordinary 
  transfer 
  cans, 
  such 
  

   as 
  shown 
  in 
  the 
  illustration. 
  The 
  other 
  form 
  of 
  apparatus 
  

   which 
  was 
  used 
  at 
  the 
  central 
  station, 
  is 
  fully 
  described 
  in 
  

   the 
  specifications 
  of 
  the 
  patent, 
  as 
  follows 
  : 
  

  

  THOMAS 
  BARKER 
  FERGUSON'S 
  

  

  IMPROVED 
  FISH 
  HATCHING 
  APPARATUS. 
  

  

  This 
  invention 
  relates 
  to 
  mctliods. 
  uud 
  tlevices 
  fur 
  batching 
  spawn 
  of 
  fi&hes, 
  

   and 
  has 
  for 
  it3 
  object, 
  to 
  hatch 
  such 
  spawn 
  in 
  still 
  waters 
  where 
  the 
  current 
  

   will 
  not 
  impart 
  sufficient 
  motion 
  to 
  the 
  eggs, 
  or 
  furnish 
  them 
  with 
  a 
  suffi- 
  

   cient 
  change 
  of 
  water 
  ; 
  and 
  also 
  in 
  waters 
  exposed 
  to 
  storms. 
  To 
  this 
  end, 
  

   the 
  nature 
  of 
  the 
  invention 
  consists 
  in 
  a 
  series 
  of 
  vessels 
  in 
  which 
  the 
  spawn 
  

   is 
  placed, 
  combined 
  witli 
  a 
  mechanism 
  that 
  will 
  impart 
  sufficient 
  motion 
  to 
  

   the 
  vessels 
  to 
  create 
  the 
  necessary 
  current 
  and 
  change 
  of 
  M-atcr. 
  It 
  also 
  

   consists 
  in 
  the 
  construction 
  of 
  the 
  spawn 
  vessels, 
  and 
  in 
  the 
  construction 
  

   and 
  combination 
  of 
  parts, 
  as 
  will 
  be 
  hereinafter 
  more 
  fully 
  set 
  forth. 
  

  

  The 
  annexed 
  drawings, 
  to 
  which 
  reference 
  is 
  made, 
  fully 
  illustrate 
  my 
  

   invention. 
  A 
  A 
  represent 
  a 
  series 
  of 
  cylindrical 
  vessels 
  made 
  of 
  sheet 
  

   metal 
  or 
  other 
  suitable 
  material, 
  and 
  of 
  any 
  suitable 
  dimensions, 
  and 
  which 
  

   may 
  be 
  made 
  shghtly 
  tapering, 
  or 
  not, 
  as 
  may 
  be 
  deemed 
  most 
  advantageous 
  

  

  Each 
  vessel 
  A 
  is 
  provided 
  at 
  its 
  lower 
  end 
  with 
  a 
  bottom 
  B 
  of 
  wire 
  cloth 
  

   or 
  similar 
  material, 
  which 
  is 
  held 
  in 
  place 
  by 
  means 
  of 
  a 
  metal 
  band 
  Cas 
  

   shown. 
  Under 
  certain 
  circumstances, 
  the 
  top 
  of 
  the 
  vessel 
  may 
  be 
  provided 
  

   with 
  a 
  similar 
  wire 
  cloth 
  J5', 
  held 
  in 
  place 
  by 
  a 
  metal 
  baud 
  C"; 
  this 
  latter 
  

   baad 
  being 
  placed 
  within 
  the 
  vessel, 
  while 
  the 
  bottom 
  baud 
  C 
  surrounds 
  the 
  

   lower 
  end 
  of 
  the 
  vessel 
  on 
  the 
  outside. 
  

  

  By 
  this 
  means 
  the 
  wire 
  cloths 
  B 
  and 
  B' 
  can 
  be 
  easily 
  removed 
  when 
  

   required, 
  and 
  as 
  easily 
  replaced. 
  

  

  