[ 12 ° ] 
§ XXX. I {hall forbear at prefent to lay before 
you a Series of Experiments in vacuo ; from the 
Companion of which, with the Experiments in open 
Air it appears, that our Atmofphere, when dry, is 
the Agent, whereby, with the Aflilfance of other 
Eledrics per fe, we are enabled to accumulate Elec- 
tricity in and upon Non electrics 5 that is, to commu- 
nicate to them a greater Quantity of Electricity than 
they naturally have: From hence alfo we fhall fee, 
that, upon the Removal of the Air, the Electricity 
pervades the Vacuum to a confiderable Diftance, 
and manitefts its Effects upon any Non electrics, 
which terminate that Vacuum: And by thefe Means 
that originally-elcctric Bodies, even in their moft per- 
fect State, put on the Appearance of Non electrics, 
by becoming the Conductors of Electricity. But thefe 
Matters may pollibly be the Subject of a future Com- 
munication. 
IV. 
