﻿400 
  

  

  Prof. 
  J, 
  Joly 
  on 
  the 
  

   Table 
  II. 
  

  

  No. 
  

  

  11. 
  

   12. 
  

   13. 
  

   14. 
  

   15. 
  

  

  16. 
  

   17. 
  

   18. 
  

   20. 
  

   21. 
  

   22. 
  

   23. 
  

   24. 
  

   25. 
  

  

  Arctic 
  Current 
  

  

  Gulf 
  Stream 
  

  

  Mid 
  Atlantic 
  

  

  260 
  m. 
  W. 
  of 
  Ireland 
  . 
  

   Atlantic, 
  lat. 
  0° 
  0', 
  

   long. 
  31° 
  26' 
  W. 
  ... 
  

  

  Atlantic, 
  South 
  

  

  Mediterranean 
  

  

  Black 
  Sea 
  

  

  Sandheads 
  to 
  Madras. 
  

  

  Off 
  Colombo 
  

  

  Minicoy 
  to 
  Sokotra 
  . 
  . 
  

  

  EedSea 
  

  

  Mediterranean 
  

  

  Valentia 
  

  

  Concentration. 
  

  

  2090 
  to 
  1600 
  

   2200 
  „ 
  1500 
  

   2170 
  „ 
  1300 
  

   2120 
  „ 
  1350 
  

  

  1625 
  

  

  1790 
  

   3315 
  to 
  1200 
  

   2S00 
  „ 
  1600 
  

   2950 
  

   2500 
  

   2400 
  

   2500 
  

   2500 
  

   2800 
  

  

  1700 
  

   1500 
  

   1700 
  

   1700 
  

   1600 
  

   1000 
  

  

  HCI. 
  

  

  I. 
  

  

  II. 
  

  

  III. 
  

  

  CCS. 
  

  

  

  

  

  50 
  

  

  6-0 
  

  

  5-7 
  

  

  14-1 
  

  

  50 
  

  

  spoiled 
  

  

  2-6 
  

  

  13-6 
  

  

  70 
  

  

  100 
  

  

  10-6 
  

  

  

  50 
  

  

  8-0 
  

  

  8-0 
  

  

  

  50 
  

  

  22-8 
  

  

  

  

  50 
  

  

  4-0 
  

  

  

  

  72 
  

  

  1-7 
  

  

  

  14-0 
  

  

  50 
  

  

  4-7 
  

  

  

  7-2 
  

  

  80 
  

  

  3-7 
  

  

  ... 
  

  

  3-6 
  

  

  84 
  

  

  2-9 
  

  

  ... 
  

  

  6-8 
  

  

  50 
  

  

  4-4 
  

  

  

  4-0 
  

  

  50 
  

  

  2-5 
  

  

  

  60 
  

  

  50 
  

  

  2*2 
  

  

  

  2-2 
  

  

  60 
  

  

  4-0 
  

  

  4-0 
  

  

  

  Column 
  I. 
  contains 
  the 
  result 
  o£ 
  the 
  first 
  experiment, 
  

   column 
  II. 
  that 
  of 
  the 
  second, 
  when 
  a 
  second 
  under 
  the 
  same 
  

   conditions 
  has 
  been 
  made, 
  and 
  column 
  III. 
  the 
  result 
  obtained 
  

   after 
  a 
  treatment 
  which 
  requires 
  some 
  explanation. 
  

  

  When 
  dealing 
  with 
  (12) 
  it 
  was 
  noticed 
  that 
  after 
  ebullition 
  

   the 
  water 
  had 
  quite 
  lost 
  its 
  original 
  limpidity. 
  The 
  appear- 
  

   ance 
  was 
  plainly 
  not 
  due 
  to 
  the 
  trace 
  of 
  talc 
  which 
  is 
  inserted 
  

   in 
  all 
  experiments 
  alike^ 
  to 
  promote 
  free 
  ebullition. 
  Held 
  

   close 
  to 
  the 
  eye 
  and 
  regarded 
  against 
  a 
  dark 
  background 
  the 
  

   flask 
  appeared 
  filled 
  with 
  semi-translucent 
  particles. 
  I 
  con- 
  

   cluded 
  for 
  want 
  of 
  better 
  explanation 
  that 
  this 
  appearance 
  

   was 
  probably 
  due 
  to 
  the 
  coagulation, 
  and 
  perhaps 
  clumping, 
  

   of 
  organic 
  substances 
  which 
  had 
  escaped 
  decomposition. 
  

   They 
  were 
  evidently 
  insoluble. 
  Always 
  mindful 
  of 
  the 
  fact 
  

   that 
  we 
  seek 
  in 
  these 
  experiments 
  to 
  expel 
  a 
  quantity 
  of 
  gas 
  

   of 
  the 
  order 
  of 
  the 
  billionth 
  of 
  a 
  cubic 
  millimetre 
  per 
  litre 
  of 
  

   sea 
  water, 
  I 
  thought 
  it 
  desirable 
  to 
  bring 
  this 
  suspension 
  into 
  

   solution. 
  Accordingly 
  when 
  the 
  trace 
  of 
  talc 
  had 
  settled, 
  

   the 
  water 
  was 
  passed 
  three 
  times 
  through 
  a 
  thick 
  filter-paper. 
  

   This 
  treatment 
  rendered 
  it 
  once 
  again 
  limpid. 
  The 
  paper 
  

   was 
  then 
  dried 
  over 
  the 
  water-bath, 
  incinerated, 
  and 
  the 
  ash 
  

   fused 
  in 
  a 
  platinum 
  crucible 
  with 
  a 
  couple 
  of 
  grams 
  of 
  the 
  

   anhydrous 
  carbonates 
  of 
  sodium 
  and 
  potassium. 
  The 
  melt 
  

   was 
  taken 
  up 
  with 
  distilled 
  water, 
  acidified, 
  and 
  the 
  resulting 
  

   clear 
  solution 
  returned 
  to 
  the 
  flask 
  of 
  sea 
  water. 
  The 
  result 
  

   given 
  in 
  column 
  III. 
  was 
  obtained 
  when 
  in 
  due 
  course 
  the 
  

   water 
  was 
  again 
  examined 
  for 
  radium. 
  I 
  may 
  add 
  that 
  a 
  

   separate 
  experiment 
  in 
  which 
  the 
  carbonates 
  were 
  fused 
  in 
  

  

  