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Originally electric, before the Electricity exerts the 
leaft Attraction ; and then this Power is Obferved firft 
at that Part of the Non-electric the mod remote from 
the Originally-electric. Thus, for Example, by an 
excited Tube held over it, Leaf Gold will be at- 
tracted through Glafs, Cloth, <&c. held horizontally 
in the Hand of a Man Handing upon the Floor, and 
this Attraction is exerted to a confiderable Diftance. 
On the contrary, the rubbed Tube will not attract 
Leaf gold, or other light Bodies, however near, 
through Silver, Tin, the thinneft Board, Paper, or 
any other Non- electric, held in the Manner before- 
mentioned. But if you rub the Paper over with 
Wax melted, and by that means introduce the Ori- 
ginally-electric therein, you obferve the Electricity adts 
in right Lines, and attracts powerfully. And here I 
muft beg Leave to remind you, not only of the for- 
mer Corollary, but of fome of the former Experi- 
ments alfo ; by which it appears, that although, to 
make a Non-electric exert any Power, we mud excite 
the whole Mafs thereof, yet we can excite what Part, and 
what only, of an Originally-ekaric we pleafe. Thus 
we obferve, that Leaf gold, and the Seed of Cottongrafs 
(which grows upon Boggs, and is a very proper Sub- 
ject for thefe Inquiries), are attracted under a glafs 
Jar made warm *, and turned Bottom upwards, upon 
which 
* l have conftamly obferved, that the eledbical Attra&ion through 
Glafs is much more powerful when the Glafs is made warm, than 
when cold. This Efteft may proceed from a twofold Caufe : Firft, 
Warm Glafs docs not condenfe the Wa:er from the Air, which 
makes 
