XIV CONTENTS. 



CHAPTER XVIII. 



PREDICTION OF EARTHQUAKES. 



PAGE 



General nature of predictions— Prediction by the observation of un- 

 usual phenomena (Alteration in the appearance and taste of 

 springs ; underground noises ; preliminary tremors ; Earthquake 

 prophets— warnings furnished by animals, &c.) — Earthquake 

 warning . 207 



CHAPTER XIX. 



EARTH TREMORS. 



Artificially produced tremors — Observations of Kater, Dcnman, 

 Airy, Palmer, Paul — Natural tremors — Observations of Zollner, 

 M. d'Abbadie, G. H, and H. Darwin — Experiments in Japan — 

 With seismoscopes, microphones, pendulums — Work in Italy — 

 Bertelli, Count Malvasia, M. S. di Rossi — Instruments employed 

 in Italy — Tromometers, microseismographs, microphones — Re- 

 sults obtained in Italy — In Japan— Cause of microseismic motion 306 



CHAPTER XX. 



EARTH PULSATIONS. 



Definition of an earth pulsation — Indications of pendulums — Indi- 

 cations of levels — Other phenomena indicating the existence of 

 earth pulsations— Disturbances in lakes and oceans — Phenomena 

 resultant on earth pulsations — Cause of earth pulsations . . 326 



CHAPTER XXI. 



EARTH OSCILLATIONS. 



Evidences of oscillation — Examples of oscillation — Temple of Ju- 

 piter Serapis — Observations of Darwin — Causes of oscillation . 34 4 



APPENDIX 349 



INDEX . . . . • .359 



