﻿Gases 
  by 
  Collision 
  with 
  Low 
  Electric 
  Forces. 
  1013 
  

  

  Table 
  IV. 
  

   SO,. 
  Pressure 
  2S4: 
  mm, 
  

  

  X. 
  

  

  ■2 
  cm. 
  

  

  '3 
  era. 
  

  

  •4 
  cm. 
  

  

  a. 
  

  

  a/p. 
  

  

  X/p. 
  

  

  100 
  

  

  1-365 
  

  

  2-390 
  

  

  2732 
  

  

  •0085 
  

  

  •0030 
  

  

  35-21 
  

  

  150 
  

  

  1-375 
  

  

  2-451 
  

  

  2-755 
  

  

  •0193 
  

  

  •0068 
  

  

  52-81 
  

  

  200 
  

  

  1-469 
  

  

  2-508 
  

  

  2-953 
  

  

  •0517 
  

  

  •0182 
  

  

  70-42 
  

  

  250 
  

  

  1-563 
  

  

  2-633 
  

  

  3-237 
  

  

  •3417 
  

  

  •1203 
  

  

  88'02 
  

  

  300 
  

  

  1687 
  

  

  2-875 
  

  

  3-657 
  

  

  •7756 
  

  

  •2731 
  

  

  105-63 
  

  

  350 
  

  

  1-865 
  

  

  3-198 
  

  

  4-349 
  

  

  1-4336 
  

  

  •5048 
  

  

  123-23 
  

  

  400 
  

  

  2-052 
  

  

  3-677 
  

  

  5-594 
  

  

  2-734 
  

  

  •963 
  

  

  140-81 
  

  

  450 
  

  

  2-302 
  

  

  4-313 
  

  

  7-063 
  

  

  3-550 
  

  

  1-25 
  

  

  158-44 
  

  

  500 
  

  

  2-646 
  

  

  5-213 
  

  

  9-500 
  

  

  4-762 
  

  

  1-68 
  

  

  176-05 
  

  

  550 
  

  

  3-094 
  

  

  6-354 
  

  

  13-25 
  

  

  5-938 
  

  

  2-09 
  

  

  193-65 
  

  

  600 
  

  

  3-625 
  

  

  8-113 
  

  

  18-50 
  

  

  7-067 
  

  

  2-43 
  

  

  211-26 
  

  

  650 
  

  

  4-091 
  

  

  J 
  0-53 
  

  

  24-55 
  

  

  8-047 
  

  

  2-77 
  

  

  228-86 
  

  

  700 
  

  

  4-819 
  

  

  13-03 
  

  

  32-87 
  

  

  8-815 
  

  

  3-10 
  

  

  246-47 
  

  

  750 
  

  

  5-656 
  

  

  16-9 
  

  

  49-37 
  

  

  10-226 
  

  

  3-60 
  

  

  264-07 
  

  

  800 
  

  

  6-625 
  

  

  21-08 
  

  

  70-04 
  

  

  11-293 
  

  

  3-98 
  

  

  281-68 
  

  

  850 
  

  

  7-729 
  

  

  27-75 
  

  

  1041 
  

  

  12-613 
  

  

  4-44 
  

  

  299-28 
  

  

  900 
  

  

  9-125 
  

  

  35-3 
  

  

  150-1 
  

  

  13-685 
  

  

  4-82 
  

  

  31689 
  

  

  950 
  

  

  10-62 
  

  

  45-73 
  

  

  212-8 
  

  

  14-729 
  

  

  5-19 
  

  

  334-49 
  

  

  1000 
  

  

  12-16 
  

  

  58-99 
  

  

  307-9 
  

  

  15-955 
  

  

  5-62 
  

  

  352-10 
  

  

  1050 
  

  

  14-22 
  

  

  76-56 
  

  

  481-4 
  

  

  17-619 
  

  

  6-19 
  

  

  36970 
  

  

  1100 
  

  

  16-55 
  

  

  97-80 
  

  

  694-9 
  

  

  18-566 
  

  

  6-54 
  

  

  387 
  31 
  

  

  1150 
  

  

  19-25 
  

  

  130-8 
  

  

  925 
  

  

  19-256 
  

  

  6-78 
  

  

  404-91 
  

  

  1200 
  

  

  21-81 
  

  

  162-4 
  

  

  L500 
  

  

  21-080 
  

  

  7-42 
  

  

  422-52 
  

  

  1250 
  

  

  24-89 
  

  

  209-2 
  

  

  Sparking 
  

  

  21-163 
  

  

  7-45 
  

  

  440-12 
  

  

  1300 
  

  

  29-31 
  

  

  263-2 
  

  

  

  21-861 
  

  

  770 
  

  

  457-73 
  

  

  1350 
  

  

  33-8 
  

  

  362-1 
  

  

  

  23-598 
  

  

  8-31 
  

  

  475-33 
  

  

  1400 
  

  

  39-2 
  

  

  460-6 
  

  

  

  24-588 
  

  

  866 
  

  

  492-94 
  

  

  1450 
  

  

  44-92 
  

  

  599-7 
  

  

  

  25-872 
  

  

  9-11 
  

  

  510-54 
  

  

  1500 
  

  

  50-94 
  

  

  802-9 
  

  

  

  27-468 
  

  

  9-67 
  

  

  528-15 
  

  

  1600 
  

  

  70-49 
  

  

  Sparking 
  

  

  

  

  

  

  1700 
  

  

  94-92 
  

  

  

  

  

  

  

  1800 
  

  

  125-4 
  

  

  

  

  

  

  

  1900 
  

  

  168-4 
  

  

  

  

  

  

  

  2000 
  

  

  247-9 
  

  

  

  

  

  

  

  2100 
  

  

  411-8 
  

  

  

  

  

  

  

  2130 
  

  

  502-3 
  

  

  

  

  

  

  

  2140 
  

  

  Sparking 
  

  

  

  

  

  

  

  In 
  conclusion 
  I 
  would 
  like 
  to 
  express 
  my 
  best 
  thanks 
  to 
  

   Professor 
  Townsend 
  for 
  the 
  valuable 
  encouragement 
  and 
  

   advice 
  given 
  me 
  during 
  the 
  work. 
  

  

  Lincoln 
  College, 
  Oxford, 
  

   October 
  1913. 
  

  

  

  