number of small long solid bodies, which lie so close together, that the
Air in its getting in between them, doth lose of its pressure that it has
against the _Fluid_ without them, by which means the Water or Liquor not
finding so strong a resistance between them as is able to counter-ballance
the pressure on its superficies without, is raised upward, till it meet
with a pressure of the Air which is able to hinder it. And as to the Rising
of Oyl, melted Tallow, Spirit of Wine, &c. in the Week of a Candle or Lamp,
it is evident, that it differs in nothing from the former, save only in
this, that in a _Filtre_ the Liquor descends and runs away by another part;
and in the Week the Liquor is dispersed and carried away by the Flame;
something there is ascribable to the Heat, for that it may rarifie the more
volatil and spirituous parts of those combustible Liquors, and so being
made lighter then the Air, it maybe protruded upwards by that more
ponderous fluid body in the Form of Vapours; but this can be ascribed to
the ascension of but a very little, and most likely of that only which
ascends without the Week. As for the Rising of it in a Spunge, Bread,
Cotton, &c. above the superficies of the subjacent Liquor, what has been
said about the _Filtre_ (if considered) will easily suggest a reason,
considering that all these bodies abound with small holes or pores.

From this same Principle also (_viz. the unequal pressure of the Air
against the unequal superficies of the water_) proceeds the cause of the
accession or incursion of any floating body against the sides of the
containing Vessel; or the _appropinquation_ of two floating bodies, as
_Bubbles_, _Corks_, _Sticks_, _Straws_, &c. one towards another. As for
instance, Take a Glass-jar, such as AB in the seventh _Figure_, and filling
it pretty near the top with water, throw into it a small round piece of
Cork, as C, and plunge it all over in water, that it be wet, so as that the
water may rise up by the sides of it, then placing it any where upon the
superficies, about an inch, or one inch and a quarter from any side, and