[ 4*3 ] 
remain at Reft after the ieaft Shock, if Regard be 
had to nothing more than what I have hitherto faid. 
But there Bill remains a very important Remark 
to be made on this Subjed, to wit, that as it is uni- 
verfally agreed at this Day, that Reft is not a Force, 
all this Matter created at Reft will be infinitely foft: 
Its Parts will have no Tenacity, no Connexion, no 
Vifcofity ; they will be but contiguous, and will not 
have more Adhefion to one another, than Two Globes 
which would touch out of the Bounds of the World 
without any reciprocal Attradion } ftnce Tenacity, 
Vifcofity, S'C. are in the Cartefian Syftem but the 
Effedts of Compreffion every Way. Wherefore thefe 
Parts will be divided at the leaft Shock, in the fame 
manner as if Quickfilver be thrown againft a Wall, 
it is inftantly feen to be divided into a Million of 
Parts, to be refieded on every Side, and be again 
divided as foon as it falls on the Floor. I know my 
Comparifon is not exad, but the Advantage is on ' 
my Side j becaufe Quickfilver is not without Vifco- 
fity, or a certain Tenacity between its Parts; whe- 
ther it proceeds from Attradion, which is my Opi- 
nion, or that it be the Effed of the Prefllire of the 
ambient Fluid. Therefore the Cartefian Matter will 
have more Facility to divide than Quickfilver, and 
will not be fufceptible of any regular Motion ; which 
alone demonftrates, that the mechanical Generation 
of the Vortex is impoflible. 
There is however this Difference between the 
Vortex imagined by Defcartes^ compofed of hard 
Globules ; and that of the infinitely foft Matter of 
Father Malebranche, whofe Syftem is revived by his 
Difciple Monfieur de Molieres ; that if the Cartejians 
G gg z ad- 
