﻿REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  XXV 
  

  

  Following 
  is 
  a 
  record 
  of 
  the 
  meteorological 
  observations 
  made 
  at 
  the 
  

   station 
  during 
  the 
  year 
  : 
  

  

  189C— 
  July 
  

  

  August... 
  

  

  September 
  

  

  October... 
  

  

  November 
  

  

  December. 
  

   1897— 
  January 
  . 
  . 
  

  

  February 
  . 
  

  

  March 
  

  

  April 
  

  

  May 
  

  

  June 
  

  

  Mean 
  temperatures. 
  

  

  7 
  a. 
  m. 
  2 
  p. 
  m. 
  

  

  64.71 
  

   61.02 
  

   53.45 
  

   40.27 
  

   34.02 
  

   17.77 
  

   13.81 
  

   15.09 
  

   24.55 
  

   37.13 
  

   49.14 
  

   55.54 
  

  

  76.00 
  

   74. 
  5<5 
  

   64.88 
  

   51.74 
  

   40.73 
  

   27.85 
  

   26.02 
  

   30.62 
  

   35.13 
  

   50.10 
  

   60.49 
  

   65.77 
  

  

  Water. 
  

  

  Hatchery, 
  

   inside. 
  

  

  7 
  a. 
  m. 
  2 
  p. 
  m, 
  

  

  68.98 
  

   69.28 
  

   62.78 
  

   53.08 
  

   44.73 
  

   34.74 
  

   33.56 
  

   33.66 
  

   34.11 
  

   37.95 
  

   50.77 
  

   58.71 
  

  

  71 
  77 
  

   72.23 
  

   65.05 
  

   55.15 
  

   46.15 
  

   35.45 
  

   34.19 
  

   34.82 
  

   35.77 
  

   40.98 
  

   53.06 
  

   60.92 
  

  

  Head 
  of 
  feed- 
  

   trough 
  stand. 
  

  

  63.55 
  

   64.05 
  

   59.83 
  

   52.18 
  

   45.70 
  

   37. 
  92 
  

   36.65 
  

   35.34 
  

   35.87 
  

   38.72 
  

   48.70 
  

   54. 
  60 
  

  

  2 
  p. 
  m. 
  

  

  67.35 
  

   68.40 
  

   63.13 
  

   55.00 
  

   47.37 
  

   39. 
  29 
  

   38.18 
  

   38.02 
  

   38.87 
  

   43. 
  42 
  

   52. 
  37 
  

   57. 
  82 
  

  

  Rain- 
  

   fall. 
  

  

  Inches. 
  

  

  Snow. 
  

  

  Inches. 
  

  

  St. 
  Johnsbuky 
  Station, 
  Vermont 
  (J. 
  W. 
  Titcomb, 
  SurEuiNTENDENT). 
  

   A 
  special 
  appropriation 
  for 
  increase 
  of 
  tlie 
  sirring 
  water 
  supply, 
  

  

  construction 
  of 
  reservoir, 
  and 
  general 
  improvement 
  to 
  the 
  grounds 
  

   having 
  been 
  provided, 
  the 
  work 
  was 
  undertaken 
  early 
  in 
  the 
  summer 
  

   under 
  the 
  direction 
  of 
  the 
  superintendent. 
  In 
  order 
  to 
  increase 
  the 
  

   water 
  supply, 
  the 
  springs 
  on 
  the 
  station 
  property 
  were 
  developed 
  by 
  

   excavating 
  ditches 
  into 
  the 
  hillsides. 
  These 
  were 
  lined 
  with 
  3-inch 
  land 
  

   tile, 
  laid 
  on 
  hemlock 
  boards 
  and 
  covered 
  with 
  stones 
  and 
  gravel. 
  

   Wooden 
  boxes 
  were 
  set 
  at 
  the 
  outlet 
  of 
  each 
  ditch 
  to 
  catch 
  the 
  water, 
  

   from 
  which 
  it 
  is 
  conveyed 
  through 
  pipes 
  connecting 
  with 
  the 
  main 
  line 
  

   to 
  the 
  reservoir. 
  Much 
  difficulty 
  was 
  experienced 
  in 
  making 
  the 
  exca- 
  

   vations 
  on 
  account 
  of 
  the 
  land 
  containing 
  quicksand 
  and 
  clay, 
  which 
  

   also 
  made 
  it 
  impossible 
  to 
  obtain 
  water 
  free 
  from 
  sediment. 
  The 
  supply 
  

   secured 
  by 
  this 
  means 
  was 
  about 
  double 
  the 
  amount 
  obtained 
  under 
  the 
  

   old 
  system. 
  During 
  the 
  rainy 
  season 
  the 
  capacity 
  of 
  the 
  springs 
  has 
  

   averaged 
  about 
  80 
  gallons 
  per 
  minute. 
  

  

  In 
  order 
  to 
  prevent 
  the 
  clogging 
  of 
  the 
  intake 
  at 
  the 
  dam 
  in 
  Sleepers 
  

   Eiver, 
  a 
  deflecting 
  wall 
  30 
  feet 
  long, 
  6 
  feet 
  wide 
  at 
  base, 
  4 
  feet 
  wide 
  

   at 
  top, 
  and 
  6 
  feet 
  high, 
  was 
  constructed. 
  A 
  framework 
  of 
  timber 
  

   inserted 
  in 
  the 
  wall 
  on 
  the 
  east 
  side 
  near 
  the 
  lower 
  end 
  and 
  fastened 
  to 
  

   the 
  intake 
  on 
  the 
  west 
  side 
  forms 
  a 
  recess 
  for 
  the 
  water 
  to 
  pass 
  through 
  

   into 
  the 
  intake. 
  This 
  recess 
  is 
  protected 
  by 
  a 
  grating 
  formed 
  of 
  iron 
  

   rods 
  extending 
  perpendicularly 
  down 
  through 
  the 
  framework. 
  Below 
  

   the 
  grating, 
  between 
  the 
  jetty 
  and 
  the 
  crib, 
  a 
  piece 
  of 
  10-incli 
  cast-iron 
  

   pipe 
  was 
  inserted, 
  to 
  be 
  used 
  for 
  flushing 
  during 
  periods 
  of 
  high 
  water, 
  

   when 
  the 
  entrance 
  to 
  the 
  crib 
  becomes 
  filled 
  with 
  sediment. 
  The 
  

   wooden 
  gates 
  connecting 
  the 
  two 
  8-inch 
  pipe 
  lines 
  were 
  replaced 
  by 
  

   iron 
  ones. 
  

  

  A 
  reservoir 
  of 
  172,198 
  gallons 
  capacity 
  was 
  constructed 
  between 
  

   Emerson 
  Falls 
  and 
  the 
  hatchery, 
  at 
  an 
  elevation 
  of 
  83 
  feet. 
  A 
  much 
  

  

  