[ 7*^3 
attract no light Subftances, nor emit any Fire,; This 
induced me to conceive, that the eledrical Power 
was not inherent in the Glafs, but came from the 
Floor of the Room 5 and if the Fad were fo, the 
Gun-barrel fhould fnap upon my touching any Part 
of the Machine. The Confequence fully anfwer'd 
my Conjedures; for while I flood upon the Floor, 
the Globes ftill in Motion, I put one Hand upon 
the Frame of the Machine, and touched the Gun- 
barrel with one of the Fingers of my other. Upon 
this, Fire iffued, and the Snapping continued as long 
as I held my Hand upon the Machine, but ceafed 
upon taking it off. This at once proved to me, 
that the eledrical Fire paffed from the Floor thro' my 
Body to the Machine. I then order'd the Man to 
put one of his Feet from the Wax upon the Floor j 
which, as foon as he complied with, caufed the 
Eledricity to fnap at the Gun-barrel, and this ceafed 
upon his replacing his Foot. Here I found, that 
the eledrical Power came through the Man; and 
that, in thefe Inftances, either myfelf, or the Man 
who touched the Floor with his Foot, was to be re- 
garded as an additional Part of the Machine com- 
municating with the Floor. Thefe Confiderations 
led me to make the following Experiments. 
48. If my Conjedures were weli founded, and 
if the eledrical Power, the Man and the Machine 
being placed uponOrigh illy-eledrics, went through 
my Body to the Machine, a fine Wire, held in my 
Hand at a few Inch'’*' Diftance, ought to be at- 
traded by any Part Ox Machine. This fucceeded 
accordingly, but the Attradion lafted a very fmall 
Space 
3 
