488 



Dr. C. Davison — The Penzance Earthquake. 



wide and 110 square miles ia area. Tlie isoseismal 4 is 19 miles 

 long, about 15| miles wide, and 230 square miles iu area, its 

 distance from the preceding isoseismal towards the north being 

 2| miles. The longer axes of the isoseismals are directed from 



M 



a few degrees north of east to a few degrees south of west. The 

 earthquake was also observed at a few places outside the isoseismal 4,' 

 the sound being heard at Clowance, Sennen, St. Just-in-Penwith, 



