[ 59 ° ] 
tlie whole body A impels it. It is fliewn therefore, 
that the whole body B impels the whole body A, 
with the fame force that the redundant ‘fubftance in 
B impels, the whole body A, or with which the whole 
body A impels the redundant fubftance in B ; and 
that the whole body A impels the redundant fubftance 
in B, with the fame force that the redundant fub- 
ftance in A impels the redundant fubftance in B ; 
therefore the whole body B impels the whole body 
A, with the lame force with which the redundant 
llibftanco in A impels the redundant fubftance in B, 
or with which the redundant fubftance in B impels 
the redundant fubftance in A. 
Corollary. 
Let the matter in all the reft of fpace, except in two 
given bodies, be laturated with immoveable fluid j 
and let the fluid in thofe two bodies be alfo immove- 
able, Then, it one of the bodies is faturated, and the 
other either over or undercharged, they will not at all. 
attract- or repel each other. 
. If the bodies are both overcharged, they will repel 
each other. 
If they are both undercharged, they will alfo repel 
each other. 
If one is overcharged and the other undercharged, 
they will attract each other. 
N. B. In this corollary, when I call a body over-, 
charged, I would be underftood to mean, that it 
is overcharged in all parts, or at leaft no where 
under- 
