[ 634 r 
center. It the plates are very near together, and> 
confequently, D F nearly as much undercharged as 
AB is overcharged, AB will dill be more over- 
charged near the circumference than near the center, 
but the difterence will not be near lo great as in 
the former cafe : for, let N R be many times greater 
than CE, and NS lefs than CE; and take Er and 
E J equal to C R and C S, tliere can be no doubt, I 
think, but that the deficient fluid in DF will be lodged 
nearly in the fame manner as the redundant fluid in 
ABj and therefore, the repulfion of the redundant fluid 
at R, on a particle at N, will be very nearly balanced 
by the attraction of the redundant matter at r, for 
R is not much nearer to N than r is ; but the re- 
pulfion of S will not be near balanced by that of s ; 
for the diflance of S from N is much lefs than that 
, of s. Let now a fmall circle, whofe diameter is 
' S T, be drawn round the center N, on the plane of 
the plate j as the denfity of the fluid is greater at T 
than at S, the repulfion of the redundant fluid within 
the fmall circle tends to impel the point N towards 
C 3 but as there is a much greater quantity of fluid 
between N and B, than between N and A, the re- 
pulfion of the fluid without the fmall ciicle tends to 
balance that ; but the effeCt of the fluid within the 
Imall circle is not much lefs than it would be, if D b 
was not undercharged ; whereas much the greater 
part of the effeCt of that part of the plate on the out- 
lide of the circle, is taken off by the efleCl of the 
correfponding part of D F : confequently, the dif- 
ference of denfity between T and S will not be 
near fo great, as if E) h was not undercharged. 
Hence I fliould imagine, that if the two plates are 
very 
