﻿8 
  

  

  tube 
  is 
  slipped 
  over 
  the 
  neck, 
  through 
  which 
  the 
  vessel 
  is 
  

   supplied 
  with 
  water, 
  which 
  flows 
  out 
  through 
  a 
  screened 
  

   aperture 
  near 
  the 
  top. 
  The 
  current, 
  which 
  is 
  caused 
  hy 
  the 
  

   passage 
  of 
  the 
  water 
  through, 
  is 
  so 
  regulated 
  in 
  force 
  as 
  to 
  

   keep 
  the 
  particles 
  of 
  food 
  thrown 
  in, 
  suspended 
  ahout 
  

   midway, 
  constantly 
  in 
  sight 
  of 
  the 
  fish, 
  and 
  easily 
  

   attainable 
  by 
  them. 
  The 
  food 
  is 
  consumed 
  without 
  being 
  

   deposited 
  on 
  the 
  bottom, 
  as 
  in 
  the 
  ordinary 
  nursery 
  tanks, 
  

   where 
  it 
  remains, 
  uneaten 
  by 
  the 
  fish, 
  and, 
  unless 
  carefully 
  

   removed, 
  to 
  putrify 
  and 
  vitiate 
  the 
  water. 
  By 
  the 
  use 
  of 
  these 
  

   glass-funnels, 
  the 
  movements 
  of 
  the 
  fish 
  are 
  plainly 
  visible, 
  

   and 
  the 
  exhibition 
  of 
  those 
  reserved 
  for 
  experiment 
  and 
  ill- 
  

   ustration, 
  made 
  attractive. 
  Such 
  was 
  the 
  success 
  from 
  the 
  

   use 
  of 
  these 
  glass-funnels, 
  that 
  we 
  are 
  ahout 
  to 
  introduce 
  

   them 
  on 
  a 
  considerable 
  scale 
  in 
  the 
  Hatching 
  House. 
  Those 
  

   presented 
  by 
  Mr. 
  "Winans 
  are 
  ahout 
  the 
  maximum 
  size 
  that 
  

   can 
  be 
  constructed 
  of 
  glass. 
  But 
  as 
  tlic 
  fish 
  increase 
  

   in 
  size, 
  we 
  will 
  use 
  llie 
  inverted 
  cones, 
  such 
  as 
  illus- 
  

   trated 
  in 
  the 
  account 
  of 
  the 
  Shad 
  hatching 
  operations. 
  

   These, 
  though 
  having 
  the 
  advantage 
  in 
  cheapness 
  and 
  

   capacity 
  for 
  greater 
  size, 
  are, 
  of 
  course, 
  opaque, 
  and 
  not 
  so 
  

   attractive. 
  Although 
  vessels 
  of 
  tlie 
  inverted 
  cone 
  form 
  

   had 
  been 
  used 
  for 
  four 
  years 
  by 
  us, 
  for 
  tlie 
  purposes 
  (>f 
  pro- 
  

   pagating 
  fish, 
  to 
  Mr. 
  Winans 
  is 
  due 
  the 
  credit 
  of 
  first 
  plac- 
  

   ing 
  this 
  form 
  of 
  vessel 
  to 
  the 
  use 
  of 
  rearing 
  as 
  above 
  

   described. 
  

  

  The 
  evidences 
  of 
  the 
  success 
  of 
  the 
  work 
  in 
  other 
  States, 
  

   and 
  the 
  indications 
  of 
  the 
  success, 
  which 
  can 
  be 
  confidently 
  

   looked 
  for 
  in 
  time, 
  in 
  our 
  own 
  State, 
  have 
  taught 
  us 
  that 
  we 
  

   are 
  not 
  pursuing 
  a 
  vain 
  or 
  idle 
  fancy 
  ; 
  that 
  tlie 
  energy 
  which 
  

   has 
  inspired 
  most 
  of 
  those 
  who 
  have 
  entered 
  upon 
  the 
  prosecu- 
  

   tion 
  of 
  this 
  comparatively 
  new 
  industry, 
  is 
  not 
  the 
  energy 
  of 
  

   wild 
  enthusiasts, 
  but 
  the 
  vigorous 
  action 
  which 
  truth 
  in- 
  

   spires, 
  and 
  tlie 
  consciousness 
  of 
  the 
  good 
  which 
  will 
  result 
  

   to 
  the 
  country, 
  and 
  the 
  benefit 
  to 
  mankind 
  by 
  a 
  greater 
  pro- 
  

   duction 
  of 
  healthy 
  and 
  cheap 
  food. 
  

  

  