[ 6o4 ] 
PROP. vm. 
Pros. 4. To determine in what manner the fluid' 
v/ill be difpofed in the fpace A D, fuppofing 
that all the reft of the univerfe is faturated 
with immoveable fluid, and that the eledtric 
attraction and repulfion is inverfely as fome 
other power of the diftance than the fquare. 
I am not able to anfwer this Problem accurately,- 
except when the repulfion is inverfely as the fimple- 
or fome lower power of the diftance i but I think 
we may be certain of the following circumftances. 
Case i. Let the repulfion be inverfely as fome 
power of the diftance between the fquare and the 
cube, and let AD be overcharged. 
Firft, It is certain that the denfity of the fluid 
muft be everywhere the fame, at the fame diftance 
from the planes Ka and D^. 2dly, There can be 
no fpace as BC, of any fenfible breadth, in which 
the matter will not be overcharged. And, 3dly, 
The fluid clofe to the planes A a and'D^ will be 
prefied clofe together.. Whence, I think, we may 
conclude, that the denfity of the fluid will increafe 
gradually from the middle of the fpace to the out- 
fide, where it will be prelTed clofe together. Whe- 
ther the matter exadtly in the middle will be over-, 
charged, or only faturated, I cannot tell. 
Case 
