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  fishery 
  products. 
  Man 
  being 
  one 
  of 
  the 
  chief 
  destroyers 
  

   of 
  fish, 
  his 
  influence 
  upon 
  their 
  abundance 
  must 
  be 
  studied. 
  

   Fishery 
  methods 
  and 
  apparatus 
  must 
  be 
  examined 
  and 
  

   compared 
  with 
  those 
  of 
  other 
  lands, 
  that 
  the 
  use 
  of 
  those 
  

   which 
  threaten 
  the 
  destruction 
  of 
  useful 
  fishes 
  may 
  be 
  

   discouraged, 
  and 
  that 
  those 
  which 
  are 
  inefficient 
  may 
  be 
  

   replaced 
  by 
  others 
  more 
  serviceable. 
  Statistics 
  of 
  industry 
  

   and 
  trade 
  must 
  be 
  secured 
  for 
  the 
  use 
  of 
  Congress 
  in 
  

   making 
  treaties 
  or 
  imposing 
  tariffs, 
  to 
  show 
  to 
  producers 
  

   the 
  best 
  markets, 
  and 
  to 
  consumers 
  where 
  and 
  with 
  what 
  

   their 
  needs 
  may 
  be 
  supplied. 
  

  

  3. 
  The 
  introduction 
  and 
  multiplication 
  of 
  useful 
  food 
  

   fishes 
  throughout 
  the 
  country, 
  especially 
  in 
  waters 
  under 
  

   the 
  jurisdiction 
  of 
  the 
  general 
  government, 
  or 
  those 
  

   common 
  to 
  several 
  states, 
  none 
  of 
  which 
  might 
  feel 
  willing 
  

   to 
  make 
  expenditures 
  for 
  the 
  benefit 
  of 
  the 
  others. 
  This 
  

   work, 
  which 
  was 
  not 
  contemplated 
  when 
  the 
  Commission 
  

   was 
  established, 
  was 
  first 
  undertaken 
  at 
  the 
  instance 
  of 
  the 
  

   American 
  Fish 
  Cultural 
  Association, 
  whose 
  representatives 
  

   induced 
  Congress 
  to 
  make 
  a 
  special 
  appropriation 
  for 
  the 
  

   purpose. 
  This 
  appropriation 
  has 
  since 
  been 
  renewed 
  every 
  

   year 
  on 
  an 
  increasingly 
  bountiful 
  scale, 
  and 
  the 
  propaga- 
  

   tion 
  of 
  fish 
  is 
  at 
  present 
  by 
  far 
  the 
  most 
  extensive 
  branch 
  

   of 
  the 
  work 
  of 
  the 
  Commission, 
  both 
  in 
  respect 
  to 
  number 
  

   of 
  men 
  employed 
  and 
  quantity 
  of 
  money 
  expended. 
  

  

  VIII. 
  

  

  The 
  origin 
  of 
  the 
  Commission, 
  its 
  purposes, 
  and 
  methods 
  

   of 
  organization, 
  having 
  been 
  described, 
  it 
  now 
  remains 
  to 
  

   review 
  the 
  accomplished 
  results 
  of 
  its 
  work. 
  In 
  many 
  

   departments, 
  especially 
  that 
  of 
  direct 
  research, 
  most 
  

   efficient 
  services 
  have 
  been 
  rendered 
  by 
  volunteers 
  ; 
  in 
  fact, 
  

  

  