[ 7+5 3 
is commonly obfcrved of them in Italy, and Coun- 
tries where Earthquakes are more frequent. 
ii. I obfcrve,the Shepherd of Kenfington thought 
the Motion of the Earthquake, and the Sound, were 
from North-weft to South-caft. On the contrary, 
.Mr. ByfiAd, the Scarlet-dyer in Southwark, thought 
the Noifc came from the River bclow-bridge, and 
went toward Wejlmtnfter j where it rattled fo, that 
he did not doubt but that the Abbey-Church was 
beaten down. 
Dr. Bar fons took Pains to find out the Way of the 
Motion of the Earthquake, from the different Pofi- 
tion of the Beds ; but, from the contradi&ory Anfwers 
given, he could obtain no Satisfaction, as to that 
Point. All this, and what was obferv'dfrom North- 
ampton, of the Motion being thought by fome to 
be upward and downward, by others, rather hori- 
zontal or lateral , the counting the Pulfes, and the 
like, only points out to us the prodigious Celerity, 
and the vibratory Species of the Motion of an Earth- 
quake ; but far, very far, is this from being owing to 
the tumultuous Ebullition, the irregular Hurry of 
fubterraneous Explofions. 
12. How the Atmofphere and Earth are put into 
that eleCtric and vibratory State, which prepares 
them to give or receive the Snap, and the Shock, 
which we call an Earthquake, what it is that im- 
mediately produces it, we cannot fay s any more 
than we can define what is the Caufe of Magnet- 
ifm, or of Gravitation, or how mnfcular Motion is 
perform'd, or a thoufand other Secrets in Nature. 
We feem to know, that the Author of Nature 
has difleminated ethereal Fire thro' all Matter 5 by 
y C which 
