discerned,
which the Nose it self is not able to find. This I have describ'd in the
following Tract in the Description of the Beard of a wild Oat. Others
there, are, may be discovered both by the Nose, and by other wayes also.
Thus the _smoak_ of burning _Wood_ is _smelt_, _seen_, and sufficiently
_felt_ by the eyes: The _fumes_ of burning _Brimstone_ are _smelt_ and
discovered also by the destroying the Colours of Bodies, as by the
_whitening of a red Rose_: And who knows, but that the Industry of man,
following this method, may find out wayes of improving this sense to as
great a degree of perfection at it is in any Animal, and perhaps yet
higher.

'Tis not improbable also, but that our _taste_ may be very much improv'd
either by _preparing_ our taste for the Body, as, after eating _bitter_
things, _Wine_, or other _Vinous liquors_, are more sensibly tasted; or
else by _preparing_ Bodies for our tast; as the dissolving of Metals with
acid Liquors, make them tastable, which were before altogether insipid;
thus _Lead_ becomes _sweeter_ then Sugar, and _Silver_ more _bitter_ then
Gall, _Copper_ and _Iron_ of most _loathsome_ tasts. And indeed the
business of this sense being to discover the presence of dissolved Bodies
in Liquors put on the Tongue, or in general to discover that a fluid body
has some solid body dissolv'd in it, and what they are; whatever
contrivance makes this discovery improves this sense. In this kind the
mixtures of Chymical Liquors afford many Instances; as the sweet Vinegar
that is impregnated with Lead may be discovered to be so by the affusion of
a little of an _Alcalizate solution_: The bitter liquor of _Aqua fortis_
and _Silver_ may be discover'd to be charg'd with that Metal, by laying in
it some plates of Copper: 'Tis not improbable also, but there may be
multitudes of other wayes of discovering the parts dissolv'd, or dissoluble
in liquors; and what is this discovery but a kind of _secundary tasting_.

'Tis not improbable also, but that the sense of _feeling_ may be highly
improv'd, for that being a sense that judges of the more _gross_ and
_robust motions_ of the _Particles_ of _Bodies_, seems capable of being
improv'd and assisted very many wayes. Thus for the distinguishing of
_Heat_ and _Cold_, the _Weather-glass_ and _Thermometer_, which I have
describ'd in this following Treatise, do exceedingly perfect it; by each of
which the least variations of heat or cold, which the most Acute se