[ 742 ] 
was mod fenfibly fhaken. And, throughout the 
whole Extent of this great Earthquake, we find both 
the Noife, the Shock, and the Terror, was greateft 
at the Churches, whofe Walls and Bulk made more 
Refinance than Houfes: And, generally fpeaking, 
the Churches throughout this whole Extent have 
very fair and large Towers, and very many remark- 
able Spires of good Stone. 
This fame Vibiation, imprefs’d on the Water, 
meeting- with the Solid of the Bottom of Ships and 
Loiters, gives that Thump fe.t thereon. Yet, of the 
Millions of ordinary Houles, over which it palled, 
not one fed : A Confidcration which fufficicncly 
points out to us what fort of a Morion this was not ; 
what fort of a Morion it was; and whence deriv’d : 
Not a Convulfion of the Bowels of the Earth, but 
an uniform Vibration of its Surface, aptly thought 
like that of a mufical String 5 or what we put a 
Drinking-glafs into, by rubbing one’s Finger over 
the Edge; which yet, brought to a certain Pitch, 
breaks the Glaf> j undoubtedly an electric Repulficn 
of Parts. 
7. We find, from all Accounts antient and mo- 
dern, that the Weather preceding thefe Shocks was 
mild, warm, dry, ftrene, clear, frofly : What no- 
torioufly favours all our electrical Experiments. We 
very well know, that, generally, all laft Winter, 
Spring, Summer, and Autumn, have been remark- 
ably of rh s kind of Weather; more fo than has 
been obfaved in our Memory ; and have had all 
thole ILcquilitcs, Appearances, and Preparations, 
that notoriously caufe Electricity, that promote it, 
or that arc the EifcCts of it. 
8. We 
