[ 6 97 3 
poliflied Bodies, as the End of a Poker, a rufty Naif, 1 
or fuchdike, the Pvays are much more red. The 
Difference of Colour here, I am of Opinion, is ow- 
ing rather to the different Reflexion of the eledrical 
Fire from the Surface of the Body from which it is 
emitted, than to any Difference in the Fire itfelf* 
Thefc Pencils of Rays ifiiie fucceffively as long as the 
Bodies, from which they proceed, are exciting ; but they 
are longer and more brilliant, if you bring any Non- 
electric not excited near them, tho J it muft not be clofe 
enough to make them fnap. If you hold your Hand at 
about two or three Inches Diftance from thefe Points, 
you not only feel fucceffive Blafts of Wind from 
them, but hear aifo a crackling Noife. Where 
there are feveral Points, you obferve at the fame 
time feveral Pencils of Rays. 
It appears from Experiments, that, befides the fe- 
veral Properties that Eledricity is poffefs’dof peculiar 
to itfelf, it has feme in common with Magnetifni 
and Light. 
4 Proportion I. 
In common with Magnetifm, Eledricity counter- 
ads, and, in light Subftances, overcomes the Force 
of Gravity. Like that extraordinary Power likewife, 
it exerts its Force in vacuo as powerfully as in open 
Air 5 and this Force is extended to a confiderabie 
Diftance through various Subftances of different Tex- 
tures and Penfities. 
Corollary . 
Gravity is the general Endeavour and Tendency 
of Bodies towards the Center of the Earth 5 this is 
overcome by the Magnet with regard to Iron, and 
Xxxx 2 hr 
