﻿LIII 
  

  

  weyt 
  ol' 
  the 
  luitcliing-hoiise, 
  wiiere 
  it 
  is 
  exposed 
  to 
  the 
  

   action 
  of 
  the 
  sun 
  and 
  atmosphere 
  and 
  reaches 
  a 
  very 
  

   lii<ili 
  temperature 
  during 
  the 
  heated 
  rerni. 
  

  

  Hitherto 
  we 
  had 
  found 
  it 
  i7riprn('ti('al)le 
  to 
  keep 
  the 
  

   sahuouida' 
  in 
  tliese 
  sinall 
  ]>onds 
  ex<'ept 
  in 
  comparatively 
  

   coo! 
  sumiuei's. 
  T 
  determiiied. 
  liowever, 
  to 
  nuike 
  anotlier 
  

   eiff)rt 
  to 
  Iveepovei" 
  tlie 
  li>;h 
  ivt'erretl 
  to. 
  l)ut 
  am 
  ijow 
  saris- 
  

   tied 
  that 
  these 
  ponds 
  can 
  1>e 
  better 
  utilized 
  foi' 
  the 
  rear- 
  

   inii' 
  of 
  other 
  varieties 
  which 
  do 
  not 
  recpiire 
  such 
  cold 
  

   Avater. 
  Almost 
  all 
  of 
  the 
  Hsh 
  resei'v^'d 
  for 
  this 
  ex])eri- 
  

   ment 
  died 
  during 
  tlie 
  sunuiier. 
  

  

  S 
  A 
  LAroN 
  — 
  Halmo 
  s><ihir. 
  

  

  Tliere 
  wei-e 
  also 
  on 
  haiul 
  at 
  the 
  harchingdu)use 
  sixty 
  

   tliousand 
  eggs 
  of 
  the 
  Penohscot 
  salmon, 
  which 
  com- 
  

   menced 
  to 
  hatch 
  (m 
  the 
  10th 
  of 
  the 
  montli. 
  the 
  hatching 
  

   being 
  cimipleted 
  by 
  the 
  ioth 
  of 
  February, 
  when 
  all 
  the 
  

   young 
  fish 
  were 
  free 
  from 
  the 
  e^'j^. 
  As 
  this 
  variety 
  had 
  

   been 
  so 
  successfully 
  introduced 
  into 
  the 
  Delaware 
  River, 
  

   and 
  a 
  few 
  adults 
  had 
  been 
  taken 
  in 
  the 
  Susquehanna 
  

   River 
  on 
  tlieir 
  return 
  from 
  the 
  ocean, 
  I 
  deemed 
  it 
  ad- 
  

   A'isable 
  to 
  secure 
  as 
  many 
  eggs 
  as 
  possible 
  for 
  the 
  princi- 
  

   pal 
  waters 
  of 
  Maryland, 
  and 
  the 
  U. 
  S. 
  Commissioner 
  

   genertmsly 
  furnished 
  us 
  with 
  the 
  sixty 
  thousand 
  above 
  

   mentioned, 
  for 
  the 
  waters 
  of 
  the 
  Susquehanna 
  and 
  the 
  

   Potomac, 
  as 
  it 
  was 
  tliought 
  best 
  to 
  put 
  all 
  the 
  hsh 
  into 
  

   the 
  tributaries 
  of 
  these 
  two 
  sti-eams. 
  It 
  was 
  arranged 
  

   with 
  the 
  Commissionei's 
  of 
  l^eimsylvania. 
  tlierefore, 
  that 
  

   1 
  shoidd 
  l!at<*h 
  at 
  Driiid 
  Hill 
  Park 
  the 
  hsh 
  int+'uded 
  for 
  

   the 
  Susquehanna 
  River, 
  and 
  that 
  they 
  should 
  be 
  trans- 
  

   ported 
  to 
  the 
  head([uarters 
  of 
  the 
  Sustpielianna 
  by 
  that 
  

   ctminnssioii 
  and 
  deposited 
  in 
  the 
  tributaries 
  of 
  that 
  

   stream, 
  in 
  accordance 
  with 
  this 
  anangement, 
  on 
  the 
  

   2Hrd 
  of 
  March 
  1 
  delivered 
  to 
  Nfr. 
  .1. 
  P. 
  (-reveling, 
  the 
  

   agent 
  of 
  the 
  Pennsylvania 
  Comnussion, 
  twenty-three 
  

   thousand 
  (»f 
  these 
  fish, 
  being 
  the 
  yield 
  of 
  one-half 
  "c)f 
  the 
  

   eggs 
  received, 
  to 
  be 
  dis]»osed 
  of 
  as 
  above 
  indicated. 
  I 
  

   approved 
  of 
  this 
  arrangement, 
  as 
  T 
  was 
  satisfied 
  tliat 
  the 
  

  

  