s deserve to pass for a
_Form_, may be _produced_; as that the Curious Shapes of _Salts_ (believed
to be the admirablest Effects and strongest Proofs of _Substantial Forms_)
may be the Results of _Texture_; _Art_ being able to produce Vitriol, as
well as _Nature_: _partly_, upon the possibility of _Reproducing_ Bodies by
skill, that have been deprived of their reputed _Substantial Forms_: Where
he alledges the _Redintegration of Saltpetre_, successfully performed by
himself; though his Attempts, made upon the dissipation and re-union of
_Amber_, _Allum_, _Sea-Salt_, and _Vitriol_, proved (by reason of
_accidental_ hindrances rather, than of any impossibility in the Nature of
the Thing) less successful.

In the _Second_ and _Historical_ Part, the Author, appealing to the
Testimony of Nature, to verifie his Doctrine, sets down, _both_ some
_Observations_, of what Nature does without being over-ruled by the power
and skill of man; and some _Experiments_, wherein Nature is guided, and as
it were, mastered by Art.

The _Observations_ are four.

1. The _First_ is taken from what happens in the _Hatching of_ {194} _an
Egge_; out of the _White_ whereof, which is a substance Similar, insipid,
soft, diaphanous, colourless, and readily dissoluble in cold water, there
is by the _New_ and _Various_ contrivement of its small parts, caused by
the Incubation of the Hen, an Animal produced, some of whose parts are
opacous, some red, some yellow, some white, some fluid, some consistent,
some solid and frangible, others tough and flexible, some well, some
ill-tasted, some with springs, some without springs, &c.

2. The _Second_ is fetcht from _Water_, which being fluid, tastless,
inodorous, diaphanous, colourless, volatile, &c. may by a _Differing
Texture_ of its parts, be brought to constitute Bodies, having qualities
very distant from these, as _Vegetables_, that have firmeness, opacity,
odors, tasts, colours, Medicinal vertues; yielding also a true _Oyle_, that
refuses to mingle with _Water_, &c.

3. The _Third_, from _Inoculation_; wherein, a small _Bud_ is able to
transmute all the sap, that arrives at it, as to make it constitute a Fruit
quite otherwise qualified, then that, which is the _genuine_ production of
the Tree, so that the same sap, that in one part of the Branch constitutes
(for Instance) a _Cluster of Haws_, in another part of the same Branch, may
make a _Pear_. Where the Author mentions divers other very considerabl