﻿59 
  

  

  In 
  addition 
  to 
  what 
  has 
  been 
  done 
  at 
  the 
  summer 
  

   station, 
  more 
  or 
  less 
  exhaustive 
  investigations 
  have 
  been 
  

   carried 
  on 
  by 
  smaller 
  parties 
  in 
  every 
  important 
  position 
  of 
  

   the 
  coast 
  and 
  interior 
  waters. 
  

  

  For 
  several 
  years 
  steamers 
  were 
  lent 
  for 
  the 
  work 
  by 
  the 
  

   Secretary 
  of 
  the 
  Navy 
  and 
  the 
  Coast 
  Survey 
  and 
  Revenue 
  

   Services. 
  

  

  In 
  1880, 
  however, 
  a 
  steamer 
  of 
  450 
  tons, 
  the 
  Fish 
  Hawk,. 
  

   was 
  built 
  for 
  the 
  Commission. 
  This 
  being 
  needed 
  for 
  fish- 
  

   hatching 
  purposes, 
  another 
  larger 
  steamer, 
  of 
  1000 
  tons, 
  the 
  

   Albatross, 
  has 
  just 
  been 
  built 
  and 
  put 
  into 
  commission.. 
  

   She 
  has 
  already, 
  since 
  April, 
  made 
  two 
  successful 
  deep-sea 
  

   explorations, 
  and 
  has 
  been 
  supplied 
  with 
  every 
  means 
  for 
  

   work 
  of 
  this 
  kind. 
  

  

  The 
  general 
  practical 
  results 
  of 
  this 
  part 
  of 
  the 
  work 
  

   cannot 
  be 
  satisfactorily 
  summed 
  up 
  on 
  account 
  of 
  the 
  

   number 
  of 
  important 
  investigations 
  still 
  in 
  progress. 
  

  

  One 
  of 
  the 
  important 
  features 
  of 
  the 
  work 
  has 
  been 
  the 
  

   preparation 
  of 
  life 
  histories 
  of 
  the 
  principal 
  fishes, 
  great 
  

   quantities 
  of 
  material 
  having 
  been 
  accumulated 
  relating 
  to 
  

   almost 
  every 
  species. 
  A 
  portion 
  of 
  this 
  has 
  been 
  published,, 
  

   biographical 
  monographs 
  having 
  been 
  published 
  on 
  the 
  

   bluefish, 
  the 
  scup, 
  the 
  menhaden, 
  the 
  salmon, 
  the 
  whitefish, 
  

   the 
  shad, 
  the 
  mackerel, 
  the 
  swordfish 
  ; 
  and 
  others 
  are 
  being 
  

   printed. 
  

  

  Similar 
  monographs 
  upon 
  the 
  lobster, 
  oyster, 
  and 
  other 
  

   invertebrates 
  are 
  also 
  ready. 
  

  

  In 
  connection 
  with 
  the 
  work 
  of 
  fish 
  culture 
  much 
  atten- 
  

   tion 
  has 
  been 
  paid 
  to 
  embryology. 
  The 
  breeding 
  times, 
  

   and 
  habits 
  of 
  nearly 
  all 
  of 
  our 
  fishes 
  have 
  been 
  studied,, 
  

   and 
  their 
  relations 
  to 
  water 
  temperatures. 
  The 
  embryo- 
  

   logical 
  history 
  of 
  a 
  number 
  of 
  species, 
  such 
  as 
  the 
  cod, 
  

   shad, 
  alewifc, 
  salmon, 
  smelt, 
  Spanish 
  mackerel, 
  striped 
  

  

  