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5- As it was calm in mod places, it was fucceeded 
by a violent Iform in latit. 43, at fea. 
' Quaere. Whether this florm did not put an end 
to the earthquake, in the foot and neighbourhood of 
its greateft momentum, the extraordinary vent, or 
breaking forth of the imprifoned vapours, leaving the 
fhaken parts of the earth s fliell quickly to fettle, and 
return to its wonted liability ? 
6. At Cork in Ireland, (if thofe accounts may be 
depended on) there are two particulars remaikable; 
that fhock was felt almoll: at the fame time of the 
day as at, Lilbon. 2dly, That it was felt only at land, 
not apparent in the fea : at Lochnefs, Mount s-bay, 
and Kinfale, it was vifible in the waters only, with- 
out affedting the land; at and near Lilbon, foicibly 
agitating both land and water. 
7. Quaere. Whether it is not appaient, from 
thefe limilar effedts, at fuch diftant times, and in 
places fo remote from each other, that the Ihell of 
the earth is cavernous, abounding more or lefs, and 
interfperled with oblate, comprelled hodows; (which 
may be called the pores of our terraqueous globe, and 
lpread from different points, (or centers) like the 
roots of trees from their trunks ; and whether the 
caves and fubterraneous palfages,. being in fome parts 
narrow, little, more crooked, or other wife impeded 
by accidental obftructions, or more remote fiom the 
firft and chief momentum, may not be the reafon, 
why the furface in fome places is little or not at all 
affedted, and the fhock later in time ; but where the 
palfages are ftraight and open, and near the firft and 
ftrongelf explolion, there the fhock is earlier, and the 
agitation proportionably more violent ? 
K k k 2 LXVI. Ob- 
