﻿[5] 
  WORK 
  AT 
  COLD 
  SPRING 
  HARBOR. 
  113 
  

  

  The 
  few 
  which 
  we 
  have 
  kept 
  have 
  grown 
  wonderfully, 
  are 
  handsome 
  

   and 
  gamy 
  trout, 
  and 
  are 
  said 
  to 
  bear 
  some 
  what 
  warmer 
  water 
  than 
  our 
  

   Eastern 
  brook 
  trout, 
  the 
  Salvelinus 
  fontinalis. 
  We 
  have 
  one 
  of 
  these 
  

   fish 
  now 
  in 
  our 
  ponds, 
  a 
  male, 
  which 
  at 
  two 
  years 
  old 
  weighed 
  over 
  a 
  

   pound. 
  I 
  think 
  them 
  the 
  strongest 
  and 
  gamiest 
  trout 
  I 
  have 
  ever 
  

   handled. 
  

  

  SilELTS 
  (OSMERUS 
  MORDAX). 
  

  

  We 
  have 
  been 
  fairly 
  successful 
  in 
  hatching 
  these 
  very 
  refractory 
  

   eggs, 
  which, 
  on 
  account 
  of 
  their 
  glutinous 
  character, 
  give 
  us 
  a 
  great 
  

   deal 
  of 
  trouble. 
  We 
  obtained 
  the 
  parent 
  fish 
  from 
  the 
  streams 
  about 
  

   Brookhaven, 
  Long 
  Island, 
  which 
  empty 
  into 
  the 
  Great 
  South 
  Bay, 
  and 
  

   brought 
  them 
  here 
  about 
  the 
  spawning 
  time, 
  in 
  the 
  first 
  week 
  in 
  

   March. 
  The 
  fish 
  are 
  not 
  very 
  common 
  on 
  Long 
  Island, 
  but 
  still 
  inhabit 
  

   a 
  few 
  streams. 
  It 
  seems 
  to 
  be 
  their 
  habit 
  to 
  run 
  up 
  at 
  night 
  and 
  spawn, 
  

   and 
  the 
  fishing 
  for 
  them 
  is 
  done 
  mainly 
  at 
  this 
  time. 
  The 
  fishermen 
  all 
  

   report 
  that 
  the 
  catch 
  has 
  been 
  decreasing 
  for 
  the 
  past 
  eight 
  or 
  ten 
  years, 
  

   as 
  there 
  is 
  no 
  protection 
  by 
  law 
  for 
  the 
  fish. 
  We 
  had 
  very 
  little 
  to 
  guide 
  

   us 
  in 
  our 
  experiments, 
  as 
  but 
  little 
  had 
  been 
  attempted 
  with 
  these 
  fish, 
  

   and 
  that 
  in 
  a 
  small 
  way, 
  and 
  not 
  much 
  has 
  been 
  published 
  on 
  the 
  sub- 
  

   ject. 
  The 
  fish 
  begin 
  to 
  run 
  up 
  the 
  streams 
  of 
  Long 
  Island 
  from 
  the 
  

   middle 
  to 
  the 
  last 
  of 
  February, 
  and 
  the 
  run 
  lasts 
  about 
  a 
  month. 
  Our 
  

   fish 
  were 
  brought 
  up 
  on 
  the 
  4th 
  of 
  March 
  by 
  the 
  foreman, 
  Mr. 
  Walters, 
  

   and 
  numbered 
  120, 
  some 
  of 
  which 
  were 
  nearly 
  ripe. 
  We 
  experimented 
  

   with 
  the 
  eggs 
  on 
  bunches 
  of 
  meadow-grass, 
  on 
  stones, 
  and 
  in 
  jars 
  of 
  

   the 
  McDonald 
  pattern, 
  and 
  found 
  that 
  when 
  they 
  adhered 
  in 
  bunches 
  

   we 
  were 
  more 
  or 
  less 
  successful, 
  and 
  although 
  all 
  the 
  eggs 
  on 
  the 
  out- 
  

   side 
  of 
  the 
  bunches 
  died, 
  the 
  eggs 
  inside 
  were 
  bright 
  and 
  good. 
  A 
  de- 
  

   tailed 
  report 
  of 
  this 
  work 
  was 
  made 
  to 
  the 
  American 
  Fisheries 
  Society 
  

   at 
  its 
  fourteenth 
  annual 
  meeting, 
  May 
  5 
  and 
  6, 
  at 
  Washington, 
  D. 
  C, 
  

   and 
  can 
  be 
  found 
  in 
  the 
  published 
  report 
  of 
  that 
  society. 
  We 
  suc- 
  

   ceeded 
  in 
  hatching 
  about 
  50 
  per 
  cent 
  of 
  the 
  eggs 
  taken, 
  which 
  is, 
  at 
  

   this 
  state 
  of 
  our 
  knowledge 
  of 
  handling 
  adhesive 
  eggs, 
  considered 
  to 
  

   be 
  a 
  fair 
  working 
  average; 
  but 
  it 
  is 
  possible 
  that 
  we 
  may 
  be 
  able 
  to 
  

   increase 
  this 
  percentage. 
  We 
  took 
  this 
  year 
  some 
  200,000 
  eggs, 
  and 
  

   turned 
  out 
  about 
  100,000 
  fry 
  in 
  different 
  streams 
  about 
  the 
  head 
  of 
  Cold 
  

   Spring 
  Harbor. 
  

  

  THE 
  SALT-WATER 
  DEPARTMENT. 
  

  

  Situated 
  as 
  we 
  are 
  at 
  the 
  head 
  of 
  an 
  inlet 
  where 
  the 
  fresh-water 
  

   springs 
  from 
  the 
  hillside 
  flow 
  into 
  the 
  harbor, 
  we 
  can 
  obtain 
  salt 
  water 
  

   of 
  a 
  density 
  of 
  1.019 
  to 
  1.022 
  at 
  high 
  tide. 
  The 
  State 
  commission 
  has 
  

   built 
  a 
  pond 
  with 
  a 
  flood-gate 
  which 
  holds 
  the 
  water 
  at 
  low 
  tide, 
  and 
  

   from 
  which 
  we 
  pump 
  it 
  into 
  a 
  reservoir 
  on 
  the 
  hill. 
  The 
  work 
  this 
  

   year 
  was 
  confined 
  to 
  hatching 
  the 
  little 
  tomcod 
  (jificrogadus 
  tomcodus), 
  

   S. 
  Mis. 
  70 
  8 
  

  

  