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fhock at Lifbon, or the expiring efforts of fome fimi- 
lar fubterraneous ftrugglings of nature farther to the 
weft, under the Atlantic ocean, will remain uncer- 
tain till more fads and dates appear; but, by the ac- 
counts from abroad, this hrft of November feems to 
have been a day of univerfal tremor to all the fea- 
coafls of the weftern parts of Europe. 
I would not be thought to fuggeft,. Sir, that a 
fhock fo far off as the coaft of Spain could be fo 
immenfe, as to propagate a motion of the water 
guite home to our ihores. I Ihould rather imagine, 
that there were feveral fhocks, and fome much nearer 
to us, but all perhaps from one and the fame caufe 
diffufed in different portions, and permeating more 
contraded or dilated, but hill communicating paf- 
fages : I Ihould imagine, that this caufe affeded the 
feas and land, in proportion to its own force, and 
the fuperior pr weaker refiftance of the incumbent 
preffure j that where it found the leaft reliftance of 
all, there it found its vent, and the fwell its cure. 
But thefe difputable points I fubmit with great 
deference to the learned, who live in the center of 
intelligence, as well as of mutual information, from, 
one another, and remain, 
f 
S I R, 
Ludgvan, 
Dec. 4, 1755. Your moft obedient and 
V 
affedionate. humble fervanf,. 
Wm, Borlafe. 
Bfctradf 
