﻿54 
  

  

  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  [52] 
  

  

  circuit) 
  of 
  small 
  wire, 
  equal 
  in 
  aggregate 
  area 
  of 
  cross-section 
  to 
  a 
  sin- 
  

   gle 
  No. 
  10 
  wire, 
  and 
  are 
  well 
  insulated 
  in 
  gutta-percha 
  ; 
  they 
  have 
  been 
  

   much 
  used 
  and 
  are 
  more 
  convenient 
  than 
  the 
  old 
  ones. 
  

  

  Fig. 
  7. 
  

  

  The 
  two 
  3-light 
  pendant 
  lamps 
  and 
  their 
  cables 
  have 
  also 
  proved 
  very 
  

   useful 
  and 
  convenient 
  ; 
  in 
  fact, 
  they 
  have 
  enabled 
  us 
  to 
  dispense 
  with 
  the 
  

   use 
  of 
  the 
  arc 
  lamps 
  entirely. 
  We 
  have 
  been 
  obliged 
  to 
  dispense 
  with 
  

   the 
  switches 
  I 
  improvised 
  for 
  these 
  pendant 
  cables, 
  and 
  to 
  substitute 
  

   Edison's 
  standard 
  switches 
  for 
  them. 
  The 
  engine 
  which 
  drives 
  the 
  

   dynamo 
  still 
  requires 
  considerable 
  care 
  ; 
  the 
  pressure-regulating 
  valve 
  

   (Fig. 
  8.) 
  has 
  sometimes 
  stuck 
  in 
  its 
  seat, 
  and, 
  on 
  one 
  occasion, 
  delayed 
  

  

  Fir.. 
  8. 
  

  

  starting 
  the 
  dynamo 
  half 
  an 
  hour. 
  We 
  have 
  provided 
  a 
  steam-gauge, 
  

   which 
  we 
  have 
  attached 
  to 
  the 
  steam-pipe 
  between 
  this 
  regulating- 
  valve 
  

  

  