44 Dr. C. Davison on Earthquake- Sounds. 



Audibility of Earthquake- Sounds in different Countries. 



While it appears to be the rule in some countries that 

 earthquakes shall be accompanied by sound, in others it 



would seem to be rather the exception. The exact per- 

 centage of earthquakes attended by sound is, however, 

 difficult to determine, on account of the slight attention paid 



