[ 386 ] 
it both from above and below, more greedily than 
ever. As this new electrification proceeded, I found, 
by feveral trials, that the cohefion became gradually 
weaker, till, at a certain period, it was totally dif- 
folved ; from which, it began again to be reftored, 
and at laft, when the fnapping ceafed, I found it to 
be as ftrong as before. 
I carried the experiment flill farther : I took two 
complete eleCtrical panes (that is, two glafs plates, 
covered each on both fides with tin-foil), and laying 
one upon the other, I applied the chain and the wire, 
and proceeded to eleCtrify. The electrification took 
place throughout ; and I could procure an explofion 
from either of them fingle, or from both together : 
but however highly they were electrified, I never 
could perceive the lead: appearance of cohefion be- 
tween them. This was agreeable to what I expeCted. 
I judged, that, in confequence of two different kinds 
of electricity, each of the panes would be charged, on 
its different fides, with the different kinds ; which, 
by counteracting one another in the fame pane, would 
reduce it to a neutral flate of electricity, and by that 
means prevent the two panes from aCting on each 
other. 
It is not here my purpofe to account for eleCtrical 
cohefion ; yet I cannot but obferve, that, in this cafe 
at leaft, it is obvious, that the cohefion cannot be owing 
to an effluence and affluence of one and the fame elec- 
trical fluid : For the two plates being of the fame fub- 
flance, and in every refpeCt alike, the effluent cur- 
rent muft have juft as great an effeCt in feparating 
them, as the affluent can have in bringing or keep- 
ing them together. The experiment above feems to 
make 
