fo very Minute^ are Movable by the leaft Force imagixaable, 
and the Aftion of the Particles of the Menflruum , is fuffi- 
cient to drive the Atomes of the difToIved folid Body from 
place to place ; and confequentiy, notwithftanding their 
Gravity, they do not fink in the Liquor lighter than them- 
felves. As a Proof of this in the qth. Article of Jmvier 
168 5, he offers an Experiment known in C^;'/^//?r;' , that 
a MenHrmm over a digefting Fire ( as the Chymi(l fpeaks ) 
M^iU dilTolve a greater Quantity of a Body put into it, than 
when tis off the Fire, and if it be taken off the Fire, and 
fuffered to cool, a great Portion will precipitate of that 
which was perfe£ily diffolved, whilft the Menlirmm con- 
tinued hot. Vox J fay she J the Particles of t\\Q MenFit^iiiim ac« 
quire a more violent agitation by the Fire, and are there- 
fore able to raile and keep up a greater Quantity of the dif» 
folved Body, or hereby daey are able to Refill a greater 
Gravity. 
It has been objefted againfl: this Notion, that the com-- 
mon Experiment of precipitation, by mixing an Jlkaly with 
an Acid (eems to contradi£t this ; for thereby the Fluidity of 
tht MenHruum IS not taken away, and confequently, the 
internal Agitation of its Parts is not diminiflied, and yet 
thereupon, the Particles of the diffolved Body precipitate all 
to the Bottom. Tp this he anfwers in the forecited Article 
oijamary^ that all Mixtures of different Liquors intro- 
duce in each a different Conformation of Pores, and there- 
fore the Infufion of a new Liquor , drives the infenfible 
Parts of the diffolved Body from their Places, and forces 
them to ftrike againft each other, and cling together, and 
fb becoming more bigi and heavyer than formerly, the in- 
ternal Agitation of the Liquor is no longer able to move 
and fuftaiii them , and confequently they fall to the 
Bottom. 
This, as fairly and fhortly as I caapropofeit, is his Sen- 
timent of this Phgenomenon. j>M£iofi gseb^noc 
M 2 • ' ' ■ But 
