﻿712 
  Alternating- 
  Current 
  Spark 
  Potentials, 
  

  

  Diameter 
  o£ 
  spheres 
  : 
  20 
  cm. 
  

  

  

  

  

  Maximum 
  

  

  According 
  

  

  Explosive 
  

   Distance 
  

  

  .V 
  

  

  A- 
  

  

  Intensity 
  

   . 
  volt 
  

  

  to 
  Eussell 
  

   . 
  volt 
  

  

  in 
  cm. 
  

  

  

  

  

  in 
  • 
  

  

  cm. 
  

  

  0-1148 
  

  

  00115 
  

  

  1-0038 
  

  

  41118 
  

  

  34126 
  

  

  0-1504 
  

  

  00150 
  

  

  1-0050 
  

  

  37705 
  

  

  32361 
  

  

  0-2357 
  

  

  0-0236 
  

  

  1-0078 
  

  

  35733 
  

  

  32313 
  

  

  0-2883 
  

  

  0-0288 
  

  

  1-0096 
  

  

  34526 
  

  

  31725 
  

  

  0-3875 
  

  

  0-0387 
  

  

  1-0127 
  

  

  33120 
  

  

  30998 
  

  

  0-4717 
  

  

  0-0472 
  

  

  1-0157 
  

  

  32133 
  

  

  30411 
  

  

  0-5444 
  

  

  00544 
  

  

  1-0181 
  

  

  31615 
  

  

  30119 
  

  

  0-6516 
  

  

  00655 
  

  

  1-0218 
  

  

  30999 
  

  

  29751 
  

  

  0-81-23 
  

  

  0-0812 
  

  

  10270 
  

  

  30167 
  

  

  29156 
  

  

  0-9961 
  

  

  0-0996 
  

  

  1-0332 
  

  

  29653 
  

  

  28823 
  

  

  1-1088 
  

  

  0-1109 
  

  

  10372 
  

  

  29384 
  

  

  28636 
  

  

  1-2419 
  

  

  0-1242 
  

  

  1-0417 
  

  

  29089 
  

  

  28428 
  

  

  1-3540 
  

  

  0-1354 
  

  

  1-0455 
  

  

  28932 
  

  

  28315 
  

  

  1-4430 
  

  

  0-1443 
  

  

  1-0486 
  

  

  28842 
  

  

  28261 
  

  

  1-6310 
  

  

  0-1631 
  

  

  1-0549 
  

  

  28645 
  

  

  28128 
  

  

  

  Diameter 
  of 
  spheres 
  : 
  30 
  cm. 
  

  

  

  

  

  Maximum 
  

  

  According 
  

  

  Explosive 
  

   Distance 
  

  

  X 
  

  

  CO 
  

  

  /x. 
  

  

  Intensity 
  

   volt 
  

  

  to 
  Eussell 
  

   volt 
  

  

  in 
  cm. 
  

  

  

  

  in 
  

  

  in 
  • 
  

  

  

  

  

  cm. 
  

  

  cm. 
  

  

  0-1144 
  

  

  0-0076 
  

  

  1-0025 
  

  

  41012 
  

  

  34002 
  

  

  0-1493 
  

  

  0-0099 
  

  

  1-0033 
  

  

  38707 
  

  

  33331 
  

  

  0-2311 
  

  

  0-0154 
  

  

  1-0051 
  

  

  35802 
  

  

  32324 
  

  

  0-2846 
  

  

  0-0189 
  

  

  1-0063 
  

  

  34387 
  

  

  31559 
  

  

  0-3777 
  

  

  00252 
  

  

  1-0084 
  

  

  33000 
  

  

  30865 
  

  

  0-4666 
  

  

  00311 
  

  

  1-0104 
  

  

  32000 
  

  

  30268 
  

  

  0-5380 
  

  

  00358 
  

  

  1-0119 
  

  

  31468 
  

  

  29964 
  

  

  0-6485 
  

  

  0-0432 
  

  

  1-0144 
  

  

  30831 
  

  

  29580 
  

  

  0-8040 
  

  

  0-0536 
  

  

  1-0178 
  

  

  29944 
  

  

  28932 
  

  

  1-0360 
  

  

  0-0690 
  

  

  1-0230 
  

  

  29115 
  

  

  28325 
  

  

  1-1160 
  

  

  0-0744 
  

  

  1-0248 
  

  

  29049 
  

  

  28315 
  

  

  1-2470 
  

  

  00831 
  

  

  1-0277 
  

  

  28666 
  

  

  28007 
  

  

  1-3595 
  

  

  0-0906 
  

  

  1-0302 
  

  

  28511 
  

  

  27905 
  

  

  1-4606 
  

  

  0-0973 
  

  

  1-0324 
  

  

  28328 
  

  

  27763 
  

  

  These 
  tables 
  show 
  that 
  the 
  claims 
  of 
  Russell 
  are 
  not 
  

   justified 
  regarding 
  the 
  constancy 
  o£ 
  this 
  maximum 
  stress. 
  

   We 
  see 
  rather 
  a 
  certain 
  regularity 
  in 
  the 
  results, 
  and 
  for 
  a 
  

   definite 
  explosive 
  distance 
  a 
  minimum 
  seems 
  to 
  exist. 
  The 
  

   theory 
  of 
  Russell 
  is, 
  therefore, 
  no 
  satisfactory 
  explanation 
  of 
  

   the 
  question. 
  

  

  