[ 3 6 5 ] 
ed, and that of the ftockings of the fecond with 
thofe of the firft, will be weak in proportion. And 
laftly, if the fecond pair be not at all electrified, or 
if, in their place, any other body not electrified be 
prefented, there will be no effeCt produced on either 
hand. 
White lilk and black, when electrified, not only 
cohere with each other in the manner fhewn above, 
but when in a high degree of electricity, are found, 
both one and the other, to adhere to bodies of broad 
and even, or polifhed furfaces, though thofe bodies 
be not electrified. This adhefion I difcovered acci- 
dentally. While I was about fome eleCtrical expe- 
riments, having, without defign, thrown a flocking, 
that was highly electrified, haftily out of my hand, 
I was furprifed to find it fome time after, flicking 
againfl the paper-hangings of my room. This led 
me to make the following experiments. 
I prefented the white and the black filk, highly 
electrified, and in cohefion with each other, to the 
hangings; but no efifeCt was produced. I then fepa- 
rated the black from the white, and prefented them 
fingly ; in that cafe each of them readily adhered to 
the hangings, which they likewife did when flung 
from a little diflance, and continued there for neat 
an hour before they dropped. Having fluck up the 
black and the white, in the manner above-mention- 
ed, I came with another pair of ftockings highly 
electrified, and applying the white to the black, and 
the black to the white, I carried them off from the 
wall hanging on thofe that had been applied to them. 
When the fecond pair were electrified, but to a mo- 
derate degree, on applying them) in the manner above 
defer i bed.,, 
