﻿ings 
  threatened 
  to 
  obstruct 
  our 
  efforts 
  to 
  restore 
  Shad 
  to 
  

   their 
  former 
  degree 
  of 
  plenty. 
  We 
  have 
  been 
  able, 
  during 
  

   the 
  season, 
  to 
  thoroughly 
  test 
  the 
  apparatus, 
  used 
  to 
  trans- 
  

   port 
  the 
  shad 
  eggs 
  from 
  distant 
  fisheries 
  to 
  a 
  central 
  hatch- 
  

   ing 
  station, 
  to 
  completely 
  develop 
  the 
  eggs 
  when 
  not 
  con- 
  

   venient 
  to 
  transfer 
  them, 
  and 
  to 
  transport 
  the 
  young 
  fish 
  

   after 
  they 
  are 
  freed 
  from 
  tlie 
  eggs 
  — 
  referred 
  to 
  on 
  page 
  8 
  of 
  

   my 
  report 
  of 
  January, 
  1S77. 
  We 
  perfected 
  this 
  apparatus, 
  

   in 
  its 
  detailed 
  arrangements, 
  and 
  so 
  successful 
  was 
  its 
  use 
  

   during 
  our 
  operations 
  at 
  the 
  head 
  of 
  the 
  bay 
  last 
  spring, 
  

   that 
  we 
  deem 
  it 
  worthy 
  a 
  more 
  minute 
  description, 
  which 
  

   will 
  be 
  found, 
  in 
  tlie 
  account 
  of 
  the 
  Shad 
  hatching 
  work, 
  

   (m 
  another 
  page. 
  

  

  The 
  more 
  important 
  apparatus, 
  of 
  which 
  the 
  above 
  was 
  

   auxiliary, 
  is 
  that 
  used 
  at 
  the 
  central 
  station, 
  capable 
  of 
  

   perfecting 
  an 
  almost 
  unlimited 
  number 
  of 
  eggs 
  safely^ 
  with- 
  

   out 
  danger 
  from 
  storm, 
  independent 
  of 
  current, 
  and 
  at 
  com- 
  

   paratively 
  small 
  cost. 
  This 
  apparatus, 
  original 
  in 
  design 
  

   and 
  novel 
  in 
  construction, 
  is 
  fully 
  described 
  in 
  the 
  drawings 
  

   and 
  specifications 
  of 
  tlie 
  patent 
  granted 
  by 
  the 
  United 
  States 
  

   Patent 
  Office 
  ; 
  these 
  are 
  reproduced 
  in 
  the 
  account 
  of 
  Shad- 
  

   liatching 
  operations. 
  

  

  For 
  the 
  third 
  apparatus, 
  which 
  marks 
  the 
  advance 
  in 
  fish 
  

   culture 
  in 
  i\laryland 
  during 
  the 
  year, 
  we 
  are 
  indebted 
  to 
  Mr. 
  

   Thomas 
  Winans, 
  of 
  Baltimore, 
  W'hose 
  thoughtful 
  study 
  of 
  

   their 
  habits, 
  and 
  observations 
  of 
  the 
  Brook 
  Trout 
  hatched 
  in 
  

   his 
  dwelling 
  during 
  the 
  winter, 
  resulted 
  in 
  his 
  devising 
  an 
  

   apparatus 
  iu 
  wdiich 
  to 
  feed 
  the 
  young 
  fish. 
  The 
  Trout 
  kept 
  

   and 
  fed 
  in 
  this 
  apparatus 
  attained, 
  at 
  three 
  mouths, 
  a 
  size 
  

   at 
  least 
  double 
  that 
  of 
  those 
  of 
  the 
  same 
  brood 
  which 
  were 
  

   kept 
  and 
  fed 
  in 
  the 
  usual 
  nursery 
  tanks. 
  Sir. 
  Winans 
  

   kindly 
  presented 
  the 
  Uruid 
  Hill 
  Hatching 
  House 
  with 
  a 
  

   number 
  of 
  these 
  vessels, 
  with 
  all 
  the 
  necessary 
  appli- 
  

   ances, 
  ready 
  for 
  the 
  introduction 
  of 
  the 
  water. 
  The 
  device 
  

   consists 
  in 
  the 
  use 
  of 
  an 
  ordinary 
  apothecaries' 
  filtering 
  

   funnel, 
  fitted 
  to 
  a 
  frame, 
  which 
  keeps 
  it 
  in 
  position 
  ; 
  a 
  rubber 
  

  

  