[ 667 ] 
every thing that happen'd in their Way into the 
Air: But, in my Apprehenfion, it is not pofli- 
ble for us to imagine any thing to produce fuch a 
Vibration as we felt, but Electricity. 
Several People felt Pains in their Joints, Rheuma- 
tifm, Sicknefs, Head-ach, Pain in their Back, Colic, 
hyftcric and nervous Difordcrs, for the whole Day 
after, and longer (efpecially weak Conftitutions), 
exactly as upon Electrification ; and to fome it has 
p rov’d fatal. 
Upon this Principle alone can we account for the 
Fifhcs leaping out of the Ponds ; or a fort of Thump 
felt at the Bottom of a Boat. Nay, we are told of 
Earthquakes felt at Sea, far diftant from Land : Which 
are cafi!y folv'd by an ele&rical Shock imprefs’d 
upon the Water: But we cannot eafily fee Vapours 
and Fires refiding at the Bottom of the Ocean. 
From electrical Vibration alone can we account 
for that Obfervation of Springs and Fountains be- 
ing no-ways damaged after an Earthquake. I doubt 
not but they run more plentifully at that time; juft 
as the Blood circulates quicker upon Electrification. 
From Electrification only can we account for this 
Particular. The Walls of IVeftminfler-Hall are of 
no mean Tkicknefs ; yet thofe that fat with their 
Backs to it, during the Shock, all relate that it 
feem’d to pufh toward them with great Force. So 
in that of 1692. at "Deal, thp Wall of the Caftle, 
which is of an extraordinary Thickncfs and Strength, 
fhook fo much, that the People living in it expected 
it would have fallen on their Heads. 
For thus the Force of the electrical Shock is pro- 
portionate to the Quantity of the Solid. And were 
Q.q q q 2 Fumes 
