﻿MANUAL 
  OF 
  FISH-CULTURE. 
  33 
  

  

  the 
  boat 
  directly 
  with 
  the 
  fivsh 
  compartraeut 
  and 
  beiug, 
  of 
  course, 
  grated. 
  

   This 
  was 
  very 
  satisfactory, 
  but 
  when 
  it 
  was 
  found 
  desirable 
  and 
  prac- 
  

   ticable 
  to 
  use 
  ice 
  in 
  transportation, 
  the 
  forward 
  compartment 
  became 
  

   the 
  ice-room, 
  and 
  it 
  was 
  necessary 
  to 
  perforate 
  the 
  partition 
  again 
  to 
  

   admit 
  the 
  cold 
  water 
  to 
  the 
  fish. 
  Finally, 
  stout 
  woolen 
  blanket 
  cloth 
  

   was 
  substituted 
  in 
  the 
  partitions, 
  with 
  eyelet 
  holes 
  wrought 
  in 
  to 
  afford 
  

   passage 
  to 
  the 
  water. 
  This 
  is 
  the 
  form 
  now 
  in 
  use, 
  in 
  which 
  the 
  water 
  

   is 
  admitted 
  through 
  openings 
  in 
  the 
  sides 
  to 
  the 
  ice-room, 
  from 
  which 
  

   it 
  passes 
  through 
  the 
  fish-room 
  to 
  the 
  after 
  room, 
  whence 
  it 
  is 
  discharged. 
  

   The 
  car 
  is 
  ballasted 
  so 
  that 
  the 
  rail 
  is 
  just 
  above 
  water 
  or, 
  in 
  case 
  

   of 
  an 
  unusually 
  large 
  load 
  of 
  fish, 
  a 
  little 
  below 
  it. 
  All 
  the 
  openings 
  

   communicating 
  with 
  the 
  outside 
  are 
  controlled 
  by 
  slides, 
  which 
  can 
  be 
  

   closed 
  so 
  as 
  to 
  let 
  the 
  car 
  swim 
  high 
  and 
  light 
  when 
  it 
  is 
  towed 
  empty. 
  

  

  The 
  boxes 
  used 
  for 
  the 
  transfer 
  of 
  salmon 
  hold 
  about 
  90 
  gallons 
  each, 
  

   and 
  are 
  2 
  feet 
  wide, 
  2 
  feet 
  deep, 
  and 
  3 
  feet 
  long, 
  with 
  a 
  sliding 
  cover, 
  

   in 
  the 
  center 
  of 
  which 
  is 
  an 
  inch 
  auger 
  hole 
  for 
  ventilation. 
  Such 
  boxes 
  

   were 
  used 
  at 
  Bucksport 
  from 
  1872 
  to 
  1874 
  to 
  convey 
  the 
  salmon 
  on 
  

   drays 
  from 
  the 
  cars 
  to 
  the 
  inclosure, 
  a 
  distance 
  of 
  a 
  little 
  more 
  than 
  a 
  

   mile; 
  six 
  or 
  eight 
  salmon 
  were 
  taken 
  at 
  once, 
  the 
  box 
  being 
  filled 
  brim- 
  

   ful 
  of 
  water, 
  which 
  was 
  brackish 
  and 
  generally 
  clear 
  and 
  cool. 
  Though 
  

   the 
  largest 
  fish 
  could 
  not 
  lie 
  straight 
  in 
  the 
  box, 
  and 
  the 
  time 
  occupied 
  

   in 
  transit 
  was 
  commonly 
  twenty 
  minutes, 
  they 
  as 
  a 
  rule 
  arrived 
  at 
  the 
  

   pond 
  in 
  good 
  condition. 
  

  

  To 
  avoid 
  injury 
  to 
  the 
  fish 
  in 
  transferring 
  them 
  to 
  the 
  cars, 
  fine 
  

   minnow 
  dij) 
  nets, 
  lined 
  with 
  woolen 
  flannel 
  of 
  open 
  texture, 
  are 
  used. 
  

   The 
  bow 
  on 
  which 
  the 
  net 
  is 
  hung 
  is 
  22 
  inches 
  in 
  diameter, 
  and 
  to 
  

   secure 
  a 
  net 
  of 
  ample 
  width 
  three 
  ordinary 
  nets, 
  3(i 
  inches 
  in 
  depth, 
  are 
  

   cut 
  open 
  down 
  one 
  side 
  quite 
  to 
  the 
  bottom, 
  and 
  then 
  sewed 
  together, 
  

   giving 
  thus 
  three 
  times 
  the 
  ordinary 
  breadth 
  without 
  increasing 
  the 
  

   depth. 
  

  

  The 
  collection 
  of 
  salmon 
  is 
  begun 
  each 
  season 
  usually 
  from 
  the 
  20th 
  

   of 
  May 
  to 
  the 
  1st 
  of 
  June, 
  but 
  as 
  the 
  maximum 
  temperature 
  that 
  the 
  

   fish 
  fresh 
  from 
  the 
  weirs 
  will 
  endure 
  is 
  about 
  75° 
  F., 
  the 
  temperature 
  

   of 
  the 
  water 
  through 
  which 
  the 
  cars 
  are 
  towed 
  must 
  be 
  taken 
  into 
  

   consideration, 
  and 
  the 
  collection 
  not 
  be 
  postponed 
  until 
  too 
  late 
  in 
  the 
  

   season. 
  If 
  the 
  collection 
  is 
  prolonged, 
  this 
  difficulty 
  is 
  obviated 
  by 
  

   using 
  ice, 
  as 
  it 
  has 
  been 
  found 
  that 
  by 
  moderating 
  the 
  volume 
  of 
  water 
  

   passing 
  through 
  the 
  car 
  and 
  introducing 
  it 
  all 
  through 
  the 
  ice 
  compart 
  

   ment 
  it 
  is 
  possible 
  to 
  keep 
  a 
  uniform 
  temi^erature 
  in 
  the 
  compartment 
  

   in 
  which 
  the 
  fish 
  are 
  held 
  several 
  degrees 
  below 
  that 
  of 
  the 
  water 
  in 
  the 
  

   river, 
  thereby 
  insuring 
  the 
  safe 
  transfer 
  of 
  the 
  salmon. 
  

  

  THE 
  DEAD 
  BROOK 
  INCLOSURE. 
  

  

  The 
  principal 
  sources 
  of 
  Dead 
  Brook 
  are 
  two 
  small 
  lakes, 
  and 
  on 
  

   some 
  of 
  the 
  tributaries 
  there 
  are 
  considerable 
  springs. 
  While 
  the 
  

   water 
  is 
  slightly 
  purer 
  than 
  that 
  of 
  ordinary 
  brooks, 
  it 
  is 
  by 
  no 
  means 
  

  

  r. 
  0. 
  K. 
  1897 
  -i 
  

  

  