[ 395 ] 
convinced therefore, that the fmoak was the me- 
dium, which conveyed the eledricity, from my 
hand, to the infuiated rubber. 
EXPERIMENT VI. 
I placed upon a (land, on my prime-condudor, a 
piece of fmoking wax taper [TAB.xm.f1g5.], when 
immediately, on working the machine, the fmoak, 
from a large, anddiffufed volume, was much con- 
traded ; and its motion upwards, greatly accele- 
rated. I then took off the eledricity of the con- 
dudor, and held a pair of cork balls a quarter of 
an inch diameter, hung on threads two and a quar- 
ter inches long, (being the neareft at hand,) per- 
pendicularly, ever the riling fmoak; and as high 
as I could poffibly reach, Handing on a chair; this 
might raife the balls about five feet and an half 
above the prime-condudor; when (working the 
machine) in a few feconds the balls feparated to 
half an inch diftance. I then removed the taper, 
but could not perceive that the balls were at all 
affeded without it; but on replacing it, they fe- 
parated as before. I repeated the experiment fe- 
veral times, with, and without the taper, and the 
different effed, was conftantly as above recited. 
I then fet a tin faucer upon the Hand, and placed 
upon the faucer, an half pint mug of boiling wa- 
ter [tab. xiii. fig. 6.) ;and over this water, I pre- 
fented the balls, in the riling vapour ; as I had be- 
fore done in the fmoak. On working the machine 
a few feconds, the balls diverged to the diftance 
of one twelfth part of an inch. On removing the 
water, and prefenting the balls as before, they ne- 
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