r 6 o 9 ] 
tion of the waters of * Lochnefs, and fome others of 
the lochs m Scotland, about half an hour before any 
motion was felt at Lixbon, notwithftanding the caufe 
of all thefe great effefts could not lie far from thence, 
and, I think, certainly lay to the fouth of Oporto- 
Nor is it probable, that there fliould be any-miftake 
in the time, not only becaufe the difference is too 
great,, as well as the concurrent teftimonies too many, 
to admit of fuch a folution; but becaufe they men- 
tion another greater agitation, that happened about 
an hour and half after the former ; which latter agrees 
with the times, when the agitations of the waters- 
were obferved in England, if we allow only a proper 
interval for the motion to be propagated fo far north- 
ward, proportionably to the time it took up in tra- 
velling from its original' fource near Lifbon. 
7 1. Thefe appearances feem to be connected with 
that mentioned in the preceding article, and they 
may both, I think, be accounted for, by fuppoftng 
a confiderable quantity of vapour to be raifed 
.dft the partition before-mentioned was begin- 
ning to give way • during which time, a partial 
arc T S n e ® Ph i Iof ; T { a . nf - vo] * x Iix> — or Hift. and Philof. of Earthq; 
, L ° C f h " efs ’ Loehlommond, &c. The fame thing alfo feems 
to have taken place in Switzerland ; for Monf. Bertrand fays, that 
* n ° a xt th£ r atCrS in the lakes there ’ v/hich were ob- 
ferved on the ift November 1755, happened between nine and tea 
the morning; and particularly at lake Leman, he fays, the aeb 
a ion happened juft before ten ; which, allowing for the difference 
of longitude muft have been juft before nine at Lifbon ; and con- 
preceded "the £ 1S v° in the times ’ a11 thefe agitations 
preceded the earthquake, at this laft place, by near three quarters 
: [See ^ moires f ur les femblcmens de Terre , p. ic 7 
commum- 
