( IT ) 
Scholium, 
By encreafing the repellent Force of the Par- 
ic es, an unelaftick or incompre/hble Fluid mav 
become elaftick, or a Solid (at Lft a great Part of 
) may be changed into an elaftick Fluid • and 
diminilhing the repellent Force, an 
elaftick Fluid may be reduc’d to a:n unelaftick Fluid 
w to a Solid That the Particles of Quickfilver’ 
Water and other Liquors are likewife e^ued with 
an attradive ^rce, is evident ftom thofe Subftances 
running into Drops in an exhaufted Receiver, as 
'j*- likewife their adhering to 
other Bodies. The Attradion and Repullion exert 
their Forces difFerently : The AttradiL only ads 
upon the Particles, which are in Contad, or^very 
near it; m which Cafe it overcomes the Repul- 
^ u” render that Fluid unelaftick 
which otherwife would be fo • but ir 
wholly 
thit"^ the^^n Account of that Repulfion 
at the Fluid is then incompreftible. When by 
Heat or Fermentation (or any other Caufe, if there 
md rL^ R ' ‘heir Con! 
ol« Repulfion grows ftrongef, and the Parti- 
cles exert that Force at great Diftances, fo that the 
fame Body fliall be expanded into a yery large Snace 
^1^ Sometimes take up more 
than a Million of Times more Room than it did in a 
fohd or incomprelfible Fluid. (See the Queries at the 
End of Sir Ifaec Newton's Opticks.) Thus is Water 
by 
