[ 214 I 
of the electrified Rod will be fo. If it is brought 
nearer, there will likewife be Sparks produced at 
nearly equal Intervals from each other, which will 
fometimes appear as iffuing from the Side of tne 
electrified Rod, at others, as coming from the Non- 
electric. 
If a Finger is ufed as the Non-electric, it will re- 
ceive a fmart Stroke j and if Spirit of Wine, heated 
fo as to emit an inflammable Vapour, is made ufe 
of, it will be kindled by the Spark. 
Thefe Thtenornena may, on the afore-mention d 
Principles, be thus accounted for. 
If the nonelectric Rod is pointed, and brought 
fo near, as, by its Attraction, to prevent the Rays 
iffuing from the Point of the electrified Rod from 
diverging, they will be drawn off parallel to each 
other, and confequently be equally luminous through- 
out the whole Diftance between the two Rods. 
If the Non-electric be brought ft ill nearer, the 
attractive Force will be fo much increafed, as not 
only to affect the Effluvia , when they arc driven 
off from the Point of the electrified Rod, but to be 
capable of drawing them off from a confidcrable 
Part of the Rod beyond the Point} and that with 
a Velocity, and in a Quantity, fuflkient to occa- 
sion both the Spark and Blow, as well as the Noifc 
that is heard. 
The fame is the Cafe, when the non-electric 
Rod, or a Finger, is held againft the Side of that 
which is made electrical : At a greater Diftance a 
Light will appear as iffuing from the Non-electric, 
the Particles attracted from a large Surface of the 
Rod (and therefore not vifible as coming from it) 
Being made to converge to a Point, are thereby ren- 
dered 
