﻿XXX 
  

  

  INDEX. 
  

  

  Palpitating 
  shocks 
  . 
  

  

  

  

  37 
  

  

  Particle, 
  wave- 
  • 
  

  

  

  

  2 
  

  

  Path 
  of 
  wave 
  . 
  . 
  

  

  

  

  36 
  

  

  Period 
  . 
  . 
  

  

  

  

  54- 
  

  

  Pleistoseismic 
  area 
  . 
  

  

  

  

  32 
  

  

  Preliminary 
  tremors 
  . 
  

  

  

  . 
  39 
  

  

  .47 
  

  

  Propagation, 
  area 
  of 
  

  

  

  

  33 
  

  

  f 
  

  

  

  

  

  

  50 
  

  

  Range 
  of 
  motion 
  . 
  

  

  

  

  13 
  

  

  Rate 
  of 
  propagation 
  

  

  25 
  

  

  50 
  

  

  69 
  

  

  Rayleigh's 
  waves, 
  Lord 
  , 
  

  

  

  

  19 
  

  

  Refraction 
  . 
  . 
  

  

  

  

  25 
  

  

  Resultant 
  

  

  

  

  35 
  

  

  Rigidity 
  . 
  

  

  

  

  9 
  

  

  Rockfall 
  earthquakes 
  

  

  

  

  81 
  

  

  Rossi-Forel 
  scale 
  . 
  

  

  

  

  02 
  

  

  Secondary 
  earthquakes 
  

  

  

  

  S7 
  

  

  Seismic 
  area 
  . 
  • 
  

  

  

  

  34 
  

  

  Seismograph 
  . 
  . 
  

  

  

  

  66 
  

  

  Seismometer 
  . 
  

  

  

  

  66" 
  

  

  Seismoscope 
  . 
  . 
  

  

  

  

  65 
  

  

  Semiphase 
  . 
  . 
  , 
  

  

  7, 
  

  

  14 
  

  

  18 
  

  

  Surface 
  waves. 
  

  

  4, 
  

  

  19; 
  

  

  49 
  

  

  Sussultorio 
  . 
  . 
  . 
  

  

  

  

  37 
  

  

  Sympathetic 
  shocks 
  . 
  

  

  

  92 
  

  

  95 
  

  

  Transverse 
  waves 
  

  

  

  18 
  

  

  True 
  velocity 
  . 
  

  

  • 
  

  

  51 
  

  

  Undulation, 
  see 
  wave. 
  

  

  

  

  Undulating 
  shocks 
  . 
  

  

  

  37 
  

  

  Velocity 
  of 
  transmission 
  

  

  . 
  25 
  

  

  , 
  50, 
  69 
  

  

  ■ 
  of 
  wave-particle 
  

  

  

  55, 
  72 
  

  

  Violence 
  . 
  • 
  . 
  

  

  

  . 
  64 
  

  

  Volcanic 
  earthquakes 
  

  

  

  S2 
  

  

  Vorticose 
  shocks 
  

  

  

  37 
  

  

  Wave 
  amplitude 
  

  

  

  > 
  13 
  '8 
  

  

  — 
  — 
  , 
  condensational 
  

  

  

  12 
  

  

  •, 
  distortional 
  . 
  

  

  

  18 
  

  

  , 
  elastic 
  • 
  • 
  

  

  

  9 
  

  

  , 
  front 
  . 
  

  

  

  36 
  

  

  

  

  4 
  

  

  

  — 
  — 
  — 
  , 
  height 
  

  

  

  6 
  

  

  ', 
  length 
  . 
  

  

  . 
  6, 
  

  

  15, 
  18 
  

  

  ■, 
  particle. 
  • 
  

  

  

  9 
  

  

  ; 
  path 
  . 
  • 
  

  

  

  36 
  

  

  ■, 
  propagation 
  

  

  

  25,50 
  

  

  , 
  Lord 
  Rayleigh's 
  

  

  

  19 
  

  

  ', 
  refraction 
  • 
  . 
  

  

  

  25 
  

  

  ■, 
  surface 
  • 
  • 
  

  

  4* 
  

  

  19, 
  49 
  

  

  