[Sidenote: The more the Cone is immerged, the more impossible is
its floating.]
_And if we should more depress the Cone F T O, it would be so much
the more impossible that it should sustain it self afloat, the
part submerged N T O S still encreasing, and the Mass of Air
contained in the Rampart diminishing, which ever grows less, the
more the Cone submergeth._
That Cone, therefore, that with its Base upwards, and its _Cuspis_
downwards doth swimme, being dimitted with its Base downward must of
necessity sinke. They have argued farre from the truth, therefore, who
have ascribed the cause of Natation to waters resistance of Division,
as to a passive principle, and to the breadth of the Figure, with
which the division is to be made, as the Efficient.
I come in the fourth place, to collect and conclude the reason of
that which I have proposed to the Adversaries, namely,