﻿[51] 
  

  

  WORK 
  OP 
  STEAMER 
  ALBATROSS. 
  

  

  53 
  

  

  and 
  though 
  the 
  commutator 
  has 
  woru 
  considerably 
  I 
  think 
  it 
  will 
  last 
  a 
  

   year 
  yet. 
  The 
  set-screw 
  in 
  the 
  pulley 
  on 
  the 
  armature 
  bad 
  a 
  habit 
  

  

  Fig. 
  6. 
  

  

  of 
  slipping 
  at 
  times, 
  causing 
  annoyance 
  ; 
  we 
  had 
  a 
  "feather" 
  fitted 
  to 
  

   the 
  shaft 
  at 
  Washington, 
  which 
  obviates 
  that 
  trouble. 
  Occasional 
  breaks 
  

   in 
  the 
  flexible 
  cords, 
  branch 
  wires, 
  lamp-sockets, 
  &c, 
  have 
  occurred; 
  

   they 
  have 
  been 
  due 
  partly 
  to 
  short 
  circuits 
  through 
  sea-water 
  which 
  

   leaked 
  through 
  the 
  decks, 
  and 
  partly 
  to 
  accidents 
  ; 
  they 
  have 
  always 
  

   teen 
  repaired 
  by 
  men 
  in 
  the 
  engineer's 
  department. 
  But 
  two 
  breaks 
  

   have 
  occurred 
  in 
  the 
  main 
  wires. 
  As 
  an 
  additional 
  safety 
  we 
  have 
  put- 
  

   large 
  double-pole 
  cut-out 
  blocks 
  (Fig. 
  7) 
  in 
  the 
  forward 
  circuit, 
  next 
  the 
  

   dynamo. 
  We 
  have 
  placed 
  switches 
  in 
  the 
  upper 
  laboratory, 
  by 
  which 
  

   four 
  lamps 
  on 
  each 
  side 
  — 
  overhead 
  — 
  in 
  the 
  lower 
  laboratory 
  are 
  lighted, 
  

   which 
  is 
  an 
  additional 
  convenience 
  to 
  the 
  uaturalists. 
  We 
  have 
  placed 
  

   a 
  portable 
  state-room 
  sliding 
  lamp-fixture 
  in 
  the 
  chart-room 
  for 
  the 
  con- 
  

   venience 
  of 
  the 
  navigator, 
  and 
  a 
  similar 
  one 
  in 
  the 
  laboratory 
  over 
  the 
  

   microscope 
  table 
  of 
  the 
  surgeon. 
  We 
  have 
  provided 
  two 
  25-foot 
  cables 
  

   and 
  fitted 
  submarine 
  lamps 
  and 
  attachment 
  plugs 
  to 
  them 
  for 
  the 
  use 
  

   of 
  the 
  naturalists; 
  these 
  cables 
  are 
  made 
  up 
  of 
  seven 
  strands 
  (double 
  

  

  