﻿Wellington 
  PhilosopJiical 
  Society. 
  527 
  

  

  ground 
  did 
  not 
  pay. 
  He 
  referred 
  to 
  the 
  South 
  African 
  mines, 
  wliere 
  large 
  deposits 
  of 
  ore 
  

   had 
  been 
  found 
  recently, 
  yielding 
  as 
  much 
  as 
  £60,000 
  worth 
  of 
  copper 
  in 
  six 
  months. 
  He 
  

   advised 
  caution 
  in 
  opening 
  up 
  the 
  D'Urville 
  Island 
  mine, 
  and 
  said 
  that 
  only 
  those 
  who 
  

   could 
  afford 
  to 
  lose 
  the 
  money 
  which 
  they 
  invested 
  should 
  take 
  shares 
  in 
  this 
  mine. 
  

  

  Mr. 
  Kirk 
  said 
  that 
  we 
  were 
  indebted 
  to 
  the 
  speakers 
  for 
  very 
  valuable 
  remarks 
  on 
  this 
  

   subject. 
  He 
  thought 
  that 
  the 
  Great 
  Barrier 
  copper 
  had 
  been 
  worked 
  and 
  abandoned, 
  but 
  

   that 
  very 
  probably 
  there 
  was 
  yet 
  much 
  ore 
  to 
  be 
  extracted 
  from 
  the 
  mine. 
  

  

  Mr. 
  Cos, 
  in 
  reply, 
  said 
  that 
  the 
  colonial 
  mines 
  were 
  generally 
  extravagantly 
  worked, 
  

   and 
  that 
  although, 
  in 
  Cornwall, 
  ore 
  yielding 
  as 
  little 
  as 
  3 
  to 
  4 
  per 
  cent, 
  of 
  copper 
  could 
  

   be 
  worked, 
  the 
  miners 
  there 
  were 
  content 
  to 
  make 
  £3 
  per 
  month, 
  with 
  the 
  chance 
  of 
  a 
  

   good 
  month's 
  pay 
  now 
  and 
  then, 
  in 
  consequence 
  of 
  rich 
  deposits 
  being 
  found, 
  all 
  the 
  

   mining 
  there 
  being 
  let 
  to 
  tributers 
  ; 
  but 
  that 
  at 
  D'Urville 
  Island 
  the 
  miners 
  were 
  getting 
  

   as 
  much 
  as 
  £3 
  a 
  week. 
  Also, 
  the 
  ore 
  in 
  Cornwall 
  is 
  in 
  well-defined 
  lodes, 
  whereas 
  here 
  

   it 
  is 
  in 
  irregular 
  deposits, 
  and, 
  as 
  he 
  had 
  pointed 
  out 
  in 
  his 
  paper, 
  it 
  would 
  be 
  necessary 
  

   to 
  follow 
  the 
  ore 
  very 
  carefully, 
  and 
  ensure 
  a 
  considerable 
  output 
  before 
  sinking 
  capital 
  

   in 
  tramways 
  to 
  get 
  the 
  ore 
  away, 
  or 
  smelting 
  works 
  to 
  reduce 
  it. 
  

  

  3. 
  " 
  On 
  Additions 
  to 
  the 
  Carcinological 
  Fauna 
  of 
  New 
  Zealand," 
  by 
  T. 
  

   W. 
  Kirk. 
  [Transactions 
  p. 
  392.) 
  

  

  Dr. 
  Hector 
  pointed 
  out 
  the 
  value 
  of 
  such 
  papers, 
  and 
  hoped 
  the 
  society 
  would 
  have 
  

   many 
  others 
  from 
  the 
  author 
  of 
  equal 
  interest. 
  

  

  4. 
  " 
  On 
  the 
  Cause 
  of 
  the 
  Movements 
  of 
  Camphor 
  when 
  placed 
  upon 
  

   the 
  Surface 
  of 
  Water," 
  by 
  W. 
  Skey. 
  [Transactions, 
  p. 
  473.) 
  

  

  This 
  paper 
  was 
  illustrated 
  by 
  experiments 
  to 
  show 
  that 
  the 
  true 
  cause 
  for 
  this 
  

   movement 
  is 
  not 
  that 
  hitherto 
  stated, 
  but 
  is 
  due 
  to 
  the 
  solution 
  of 
  the 
  camphor 
  and 
  the 
  

   formation 
  of 
  a 
  hydrated 
  oil, 
  which 
  is 
  rapidly 
  absorbed. 
  The 
  motion 
  is 
  due 
  to 
  the 
  

   tendency 
  of 
  the 
  particles 
  of 
  camxahor 
  to 
  slide 
  off 
  the 
  elevated 
  surface 
  of 
  the 
  pellicle 
  of 
  oil 
  

   that 
  forms 
  on 
  the 
  surface 
  of 
  the 
  water. 
  It 
  was 
  shown 
  that 
  small 
  fragments 
  of 
  cork 
  or 
  

   other 
  light 
  substance 
  moistened 
  with 
  oil, 
  either 
  a 
  fixed 
  oil 
  or 
  an 
  essential 
  oil, 
  or 
  a 
  drop 
  

   of 
  bisulphide 
  of 
  carbon, 
  exhibit 
  the 
  same 
  phenomena, 
  and 
  that 
  it 
  is 
  therefore 
  not 
  due 
  to 
  

   the 
  property 
  which 
  camphor 
  possesses 
  of 
  giving 
  off 
  vapour 
  in 
  the 
  solid 
  state. 
  The 
  

   experiments 
  exhibited 
  by 
  Dr. 
  Hector 
  to 
  demonstrate 
  this 
  view 
  were 
  extremely 
  interesting 
  

   and 
  beautiful. 
  

  

  Mr. 
  Travers 
  stated 
  that 
  he 
  remembered 
  to 
  have 
  observed 
  the 
  same 
  phenomena 
  when 
  

   a 
  drop 
  of 
  iodized 
  collodion 
  was 
  accidentally 
  dropped 
  on 
  the 
  surface 
  of 
  water. 
  

  

  Dr. 
  Hector 
  said 
  that 
  Mr. 
  Skey 
  wished 
  him 
  to 
  state 
  with 
  reference 
  to 
  his 
  discovery 
  

   mentioned 
  at 
  last 
  meeting, 
  that 
  hydro-carbons 
  exist 
  in 
  many 
  fats 
  and 
  oils 
  not 
  hitherto 
  

   supposed 
  to 
  contain 
  them, 
  and 
  that 
  thej'' 
  can 
  be 
  transformed 
  into 
  alkaloids 
  by 
  the 
  anihne 
  

   process 
  ; 
  that 
  in 
  pursuing 
  his 
  investigation 
  he 
  had 
  obtained 
  an 
  alkaloid 
  from 
  butter, 
  

   thus 
  completing 
  the 
  general 
  statement 
  that 
  both 
  animal 
  and 
  vegetable 
  fats 
  contain 
  such 
  

   hydro-carbons. 
  

  

  Fifth 
  Meeting. 
  28?7i 
  Septemler, 
  1878. 
  

  

  A. 
  K. 
  Newman, 
  M.B., 
  Vice-president, 
  in 
  the 
  chair. 
  

  

  New 
  Members. 
  — 
  Dominick 
  Browne, 
  Eev. 
  Philip 
  Walsh, 
  of 
  Waitara. 
  

  

  1. 
  "Memorandum 
  of 
  the 
  Kea," 
  by 
  the 
  Hon* 
  Dr. 
  Menzies, 
  M.L.C. 
  

   [Transactions, 
  p. 
  376.) 
  

  

  