ON SEISMOLOGICAL INVESTIGATION, 



191 



Catalogue op Eabthquakes — continued. 



IV. — Earthquakes eecoeded at Shide, and also at other Stations. 



Earthquakes recorded with a Milne Horizontal Pendulum at Shide, Isle of Wight, 

 1897-98. The time used is Greemvich mean {civil) titne. Midnight = 24 or 

 hours. P.T.s= preliminary tremors. Duration means the interval of time over 

 which movements continued. 



An asterisk (*) indicates Earthquakes which are discussed separately, or of which 



seismograins are reproduced. 



