﻿10^ 
  

  

  Prof. 
  A. 
  S. 
  Eve 
  on 
  the 
  Amount 
  of 
  

  

  As 
  my 
  published 
  values 
  were 
  so 
  much 
  smaller 
  than 
  the 
  

   above, 
  it 
  seemed 
  desirable 
  to 
  make 
  some 
  more 
  measurements 
  

   and 
  ascertain 
  the 
  reason 
  for 
  the 
  difference. 
  

  

  In 
  1908, 
  on 
  a 
  voyage 
  from 
  Liverpool 
  to 
  Montreal, 
  six 
  

   samples 
  were 
  collected, 
  by 
  myself, 
  in 
  a 
  canvas 
  bucket 
  over 
  

   the 
  side 
  of 
  the 
  vessel 
  and 
  placed 
  in 
  six 
  clean 
  new 
  glass 
  

   bottles. 
  The 
  first 
  two 
  samples 
  were 
  collected 
  whilst 
  the 
  

   water 
  was 
  warm 
  and 
  the 
  ocean 
  currents 
  were 
  from 
  the 
  south, 
  

   but 
  the 
  second 
  pair 
  were 
  obtained 
  when 
  the 
  sea 
  was 
  cold 
  

   and 
  the 
  currents 
  were 
  from 
  the 
  north 
  ; 
  while 
  the 
  last 
  two 
  

   were 
  from 
  the 
  Galf 
  of 
  St, 
  Lawrence, 
  and 
  therefore 
  nearer 
  

   shore. 
  The 
  six 
  samples 
  then 
  together 
  seem 
  to 
  constitute 
  a 
  

   fair 
  average 
  sample 
  of 
  the 
  waters 
  of 
  the 
  North 
  Atlantic. 
  

  

  The 
  sea-water 
  was 
  taken 
  from 
  the 
  bottles 
  and 
  placed 
  in 
  

   six 
  new 
  glass 
  flasks 
  and, 
  except 
  with 
  sample 
  1, 
  the 
  bottles 
  

   were 
  well 
  rinsed 
  with 
  HCl 
  and 
  distilled 
  water, 
  which 
  were 
  

   afterwards 
  added 
  to 
  the 
  sea- 
  water 
  in 
  the 
  respective 
  flasks. 
  

   A 
  seventh 
  flask 
  was 
  also 
  filled 
  with 
  distilled 
  water 
  and 
  

   60 
  c.c. 
  HCl, 
  in 
  order 
  to 
  see 
  if 
  there 
  was 
  any 
  radium 
  present 
  

   in 
  the 
  flasks, 
  water, 
  or 
  acid 
  used. 
  

  

  Sample. 
  

  

  Date 
  of 
  

   CoUectiou. 
  

  

  1 
  

  

  30 
  August 
  

  

  2 
  

  

  31 
  .. 
  

  

  i 
  3 
  

  

  1 
  Sept. 
  

  

  4 
  

  

  2 
  ,. 
  

  

  5 
  

  

  3 
  „ 
  

  

  6 
  

  

  4 
  „ 
  

  

  Lat. 
  

  

  Long. 
  

  

  Placed 
  

  

  m 
  

   flask. 
  

  

  No. 
  of 
  

   grams. 
  

  

  Distilled 
  

   water. 
  

  

  HCl 
  

   added. 
  

  

  56° 
  27' 
  

  

  26° 
  32' 
  

  

  29 
  Sept. 
  

  

  1272 
  

  

  500 
  

  

  

  

  56° 
  6' 
  

  

  33° 
  3' 
  

  

  18 
  Jan. 
  

  

  1135- 
  

  

  600 
  

  

  60 
  

  

  o5° 
  5' 
  

  

  41° 
  32' 
  

  

  8 
  Dec. 
  

  

  1180 
  

  

  ? 
  

  

  30 
  

  

  53° 
  33' 
  

  

  49^ 
  32' 
  

  

  2 
  Oct. 
  

  

  1180 
  

  

  600 
  

  

  40 
  

  

  51° 
  34' 
  

  

  66° 
  26'* 
  

  

  29 
  Dec. 
  

  

  1149 
  

  

  149 
  

  

  60 
  

  

  Off 
  Gaspe 
  Co.* 
  

  

  10 
  Dec. 
  

  

  1215 
  

  

  ? 
  

  

  50? 
  

  

  * 
  In 
  the 
  Gulf 
  of 
  St. 
  Lawrence. 
  

  

  A 
  glass 
  flask, 
  silvered 
  inside, 
  was 
  fitted 
  as 
  an 
  electroscope, 
  

   and 
  the 
  method 
  followed 
  was 
  that 
  described 
  in 
  a 
  previous 
  

   paper 
  f. 
  The 
  natural 
  leak 
  was 
  small 
  and 
  constant. 
  

  

  Alter 
  the 
  sea-water 
  and 
  acid 
  had 
  been 
  sealed 
  for 
  about 
  

   a 
  month 
  in 
  the 
  flasks 
  they 
  were 
  boiled 
  for 
  some 
  minutes. 
  

   All 
  the 
  gases 
  driven 
  off, 
  including 
  the 
  emanation, 
  were 
  

   collected 
  over 
  water 
  and 
  introduced 
  through 
  a 
  drying-tube 
  

   info 
  the 
  electroscope. 
  As 
  the 
  method 
  is 
  a 
  comparative 
  one, 
  

   there 
  appears 
  to 
  be 
  little 
  objection 
  to 
  collection 
  over 
  water, 
  

   t 
  Eve 
  & 
  Mcintosh, 
  Phil. 
  Mag. 
  Aug. 
  1907. 
  

  

  