﻿100 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES, 
  

  

  By 
  early 
  winter 
  they 
  will 
  have 
  grown 
  to 
  a 
  length 
  of 
  from 
  3 
  to 
  6 
  inches, 
  

   necessitating 
  a 
  change 
  to 
  a 
  larger 
  pond. 
  The 
  Northville 
  breeding- 
  

   ponds 
  are 
  20 
  by 
  75 
  feet, 
  and 
  are 
  constructed 
  in 
  the 
  same 
  manner 
  as 
  

   the 
  rearing-ponds. 
  One 
  of 
  these 
  larger 
  ponds 
  accommodates 
  10,000 
  

   yearlings, 
  5,000 
  two-year-olds, 
  and 
  about 
  3,000 
  fish 
  from 
  three 
  to 
  five 
  

   years 
  old. 
  By 
  the 
  time 
  the 
  fish 
  are 
  three 
  years 
  old 
  and 
  over, 
  less 
  care 
  

   is 
  required 
  in 
  the 
  preparation 
  of 
  their 
  food, 
  as 
  the 
  liver 
  may 
  be 
  given 
  

   to 
  them 
  in 
  pieces 
  half 
  an 
  inch 
  in 
  diameter. 
  

  

  PACKING 
  EYED 
  EGGS 
  FOR 
  SHIPMENT. 
  

  

  Eyed 
  eggs 
  prepared 
  for 
  shipment 
  in 
  the 
  following 
  manner 
  have 
  been 
  

   sent 
  from 
  Northville 
  to 
  all 
  parts 
  of 
  the 
  United 
  States 
  with 
  practically 
  

   no 
  loss: 
  The 
  trays 
  upon 
  which 
  the 
  eggs 
  are 
  to 
  be 
  shipped 
  are 
  made 
  

   from 
  the 
  same 
  materials 
  as 
  those 
  upon 
  which 
  green 
  eggs 
  are 
  carried, 
  

   but 
  are 
  usually 
  much 
  smaller. 
  Fewer 
  eggs 
  are 
  jilaced 
  upon 
  a 
  given 
  

   surface 
  than, 
  is 
  the 
  case 
  with 
  green 
  eggs. 
  For 
  example, 
  10 
  trays, 
  12 
  

   inches 
  by 
  12 
  inches, 
  will 
  carry 
  50,000 
  eggs; 
  8 
  trays, 
  10 
  inches 
  by 
  10 
  

   inches, 
  32,000 
  eggs; 
  and 
  5 
  trays, 
  8 
  inches 
  by 
  8 
  inches, 
  12,500 
  eggs; 
  or 
  

   5,000, 
  4,000, 
  and 
  2,500 
  eggs 
  per 
  tray, 
  respectively. 
  

  

  The 
  trays 
  are 
  allowed 
  to 
  stand 
  in 
  cold 
  water 
  till 
  thoroughly 
  soaked, 
  

   and 
  are 
  then 
  drained 
  off 
  and 
  taken 
  to 
  the 
  packing-room. 
  After 
  the 
  dead 
  

   eggs 
  have 
  been 
  removed 
  from 
  a 
  box, 
  the 
  trays 
  are 
  taken 
  out, 
  drained, 
  

   and 
  removed 
  to 
  the 
  packing-room. 
  A 
  f-inch 
  wooden 
  frame, 
  made 
  to 
  fit 
  

   tbe 
  inside 
  of 
  the 
  canton-flannel 
  tray, 
  is 
  then 
  inserted, 
  the 
  eggs 
  are 
  

   carefully 
  brushed 
  with 
  a 
  feather 
  from 
  the 
  wire 
  trays 
  and 
  spread 
  as 
  

   evenly 
  as 
  possible 
  upon 
  the 
  flannel. 
  The 
  eggs 
  have 
  been 
  previously 
  

   measured 
  at 
  the 
  time 
  when 
  they 
  were 
  removed 
  from 
  the 
  gravel 
  to 
  the 
  

   hatching-box, 
  so 
  the 
  number 
  to 
  be 
  placed 
  upon 
  each 
  tray 
  can 
  be 
  easily 
  

   determined. 
  After 
  the 
  eggs 
  are 
  spread 
  upon 
  the 
  flannel, 
  the 
  inside 
  

   wooden 
  frame 
  is 
  taken 
  out, 
  leaving 
  a 
  j| 
  inch 
  margin 
  around 
  the 
  inside 
  

   of 
  the 
  tray. 
  A 
  square 
  of 
  mosquito 
  netting 
  large 
  enough 
  to 
  lap 
  over 
  on 
  

   all 
  sides 
  of 
  the 
  tray 
  is 
  laid 
  upon 
  the 
  eggs 
  and 
  tucked 
  down 
  firmly 
  along 
  

   the 
  inside. 
  Sphagnum 
  moss 
  is 
  scattered 
  to 
  a 
  depth 
  of 
  about 
  f 
  inch 
  

   upon 
  this 
  netting. 
  The 
  moss 
  is 
  prepared 
  by 
  removing 
  sticks 
  and 
  other 
  

   foreign 
  matter; 
  it 
  is 
  soaked 
  in 
  water 
  a 
  short 
  time 
  and 
  then 
  run 
  through 
  

   a 
  clothes-wringer. 
  In 
  spreading 
  it 
  upon 
  the 
  netting 
  the 
  moss 
  is 
  picked 
  

   apart 
  and 
  made 
  as 
  light 
  and 
  flufi'y 
  as 
  possible, 
  to 
  give 
  the 
  eggs 
  plenty 
  of 
  

   oxygen. 
  

  

  When 
  the 
  required 
  number 
  of 
  flannel 
  trays 
  are 
  packed 
  they 
  are 
  

   placed 
  one 
  upon 
  another 
  and 
  cleated 
  together 
  on 
  all 
  sides, 
  with 
  boards 
  

   at 
  the 
  bottom 
  and 
  top. 
  This 
  crate 
  is 
  usually 
  placed, 
  if 
  possible, 
  where 
  

   the 
  temperature 
  of 
  the 
  air 
  is 
  below 
  freezing, 
  so 
  that 
  the 
  moss 
  may 
  be 
  

   slightly 
  frosted 
  before 
  the 
  crate 
  is 
  put 
  in 
  the 
  shipping-case. 
  

  

  A 
  case 
  is 
  made 
  large 
  enough 
  to 
  allow 
  a 
  4-inch 
  space 
  above, 
  below, 
  

   and 
  arouud 
  all 
  sides 
  of 
  the 
  crate 
  when 
  it 
  is 
  placed 
  in 
  position. 
  Its 
  

   bottom 
  is 
  filled 
  with 
  fine 
  shavings, 
  4 
  inches 
  deep, 
  and 
  the 
  crate 
  placed 
  

   upon 
  them 
  as 
  nearly 
  as 
  possible 
  in 
  the 
  center 
  of 
  the 
  case. 
  Shavings 
  

  

  