suppose the subjacent _medium_ that hinders an included fluids descent, be
a _solid_, as let KI, in the _fourth Figure_, represent the smooth
superficies of a _Table_; EGFH, a parcel of _running Mercury_; the side GFH
will be more flatted, according to the proportion of the incongruity of the
_Mercury_ and _Air_ to the _Wood_, and of the _gravity_ of _Mercury_ and
_Air_ one to another; The side GEH will likewise be a little more deprest
by reason the subjacent parts are now at rest, which were before in motion.

Or further in the _third figure_, let AILD represent an including _solid_
medium of a cylindrical shape (as suppose a small _Glass Jar_) Let FGEMM
represent a contain'd _fluid_, as water; this towards the bottom and sides,
is figured according to the concavity of the _Glass_: But its upper
_Surface_, (which by reason of its gravity, (not considering at all the Air
above it, and so neither the congruity or incongruity of either of them to
the Glass) should be terminated by part of a _Sphere_ whose diameter should
be the same with that of the earth, which to our sense would appear a
straight _Line_, as FGE, Or which by reason of its having a greater
congruity to Glass than Air has, (not considering its Gravity) would be
thrust into a _concave Sphere_, as CHB, whose diameter would be the same
with that of the concavity of the Vessel:) Its upper Surface, I say, by
reason of its having a greater gravity then the Air, and having likewise a
greater congruity to Glass then the Air has, is terminated, by a _concave
Elliptico-spherical Figure_, as CKB. For by its congruity it easily
conforms it self, and adheres to the Glass, and constitutes as it were one
containing body with it, and therefore should thrust the contained Air on
that side it touches it, into a _spherical_ Figure, as BHC, but the motion
of Gravity depressing a little the Corners B and C, reduces it into the
aforesaid Figure CKB. Now that it is the greater congruity of one of the
two _contiguous fluids_, then of the other, to the containing _solid_, that
causes the separating surfaces to be thus or thus figured: And that it is