rved, that these Worms fasten not to a kind of wild
_Indian_ Pear-tree, which is highly bitter, do thereupon {191} suggest,
that the best Expedient would be, to find out a Wood having that quality.
But certainly there being now no Timber, fit for Ships, that is not known,
'tis not likely that any will be found either more hard, or more bitter,
than that, which has been hitherto employed. Some do imagine, that the
Proposer will, by certain _Lixiviums_, give to the ordinary Wood such a
quality and bitterness, as is found in the already mention'd _Indian_
Pear-tree. But this also will hardly succeed, since it will be requisite
not only to make _Lixiviums_, in great quantities at an easie rate, and
strong enough to penetrate the thick sides of a Ship, but also to make them
durable enough, not to be wash't out by the Sea. Yet notwithstanding, in
these matters one ought to suspend on's judgement, untill experience do
shew, what is to be believed of them.

_So far the Extract._ To which it may perhaps not be unseasonable to add,
that a very worthy person in _London_, suggests the Pitch, drawn out of Sea
coles, for a good Remedy to scare away these noysome insects.

* * * * *

_An Account of a Book, very lately publish't, entituled, _The Origine of
Forms and Qualities_, illustrated by Considerations and Experiments, by the
Honourable _Robert Boyle_._

This Curious and Excellent Piece, is a kind of _Introduction_ to the
_Principles_ of the _Mechanical Philosophy_, explicating, by very
Considerable Observations and Experiments, what may be, according to such
Principles, conceived of the _Nature and Origine of Qualities and Forms_;
the knowledge whereof, either makes or supposes the Fundamental and Useful
part of _Natural Philosophy_. In doing of which, the Author, to have his
way the clearer, writes rather for the _Corpuscularian_ Philosophers (as he
is pleased to call them) in _General_, than any {192} _Party_ of them,
keeping himself thereby disengaged from adopting an _Hypothesis_, in which
perhaps he is not so throughly satisfied, and of which he does not conceive
himself to be necessitated to make use here; and accordingly forbearing to
employ Arguments, that are either grounded on, _or_ suppose _Atoms_, _or_
any _Innate Motion_ belonging to them; _or_ that the Essence of Bodies
consists in Extension; _or_ that a _Vacuum_ is impossible; _or_ that there
are such _Globuli Caelestes, or_ such a