COT^TENTS. Xiil 



CHAPTER Xlir. 



PAGE 



DISTRIBUTION OF EARTHQUAKES IN TIME (conti7ll(>ed) , 234 



CHAPTER XIV. 



DISTRTBUTION OF EARTHQUAKES IN TIjME {continued). 



The occurrence of earthquakes in relation to the position of the 

 heavenly bodies — Earthquakes and the moon — Earthquakes and 

 the sun ; and the seasons ; the months — Planets and meteors — 

 Hours at which earthquakes are frequent — Earthquakes and 

 sun spots — Earthquakes and the aurora . . » . . 250 



CHAPTER XY. 



BAROMETRICAL FLUCTUATIONS AND EARTHQUAKES — 



FLUCTUATIONS IN TEMPERATURE AND EARTHQUAKES . 266 



CHAPTER XVI. 



RELATION OF SEISMIC TO VOLCANIC PHENOMExVA. 



Want of synchronism between earthquakes and volcanic eruptions — 

 Synchronism between earthquakes and volcanic eruptions — 

 Conclusion 270 



CHAPTER XVII. 



THE CAUSE OF EARTHQUAKES. 



Modern views respecting the cause of earthquakes — Earthquakes 

 due to faulting — To explosions of steam — To volcanic eviscera- 

 tion — To chemical degradation — Attractive influence of the 

 heavenly bodies — The effect of oceanic tides — Variation in at- 

 mospheric pressure — Fluctuation in temperature — Winds and 

 earthquakes — Kain and earthquakes — Conclusion . . , 277 



