to Acquiesce: For besides that 'tis most commonly far easier to frame
Objections against any propos'd_ Hypothesis, _than to propose an_
Hypothesis _not lyable to Objections (besides this I say) 'tis no such
great matter, if whereas Beginners in Chymistry are commonly at once
imbu'd with the Theory and Operations of their profession, I who had
the good Fortune to Learn the Operations from illiterate Persons,
upon whose credit I was not Tempted to take up any opinion about them,
should consider things with lesse prejudice, and consequently with
other Eyes than the Generality of Learners; And should be more
dispos'd to accommodate the_ Phaenomena _that occur'd to me to other
Notions than to those of the Spagyrists. And having at first
entertain'd a suspition That the Vulgar Principles were lesse General
and comprehensive, or lesse considerately Deduc'd from Chymical
Operations, than was believ'd; it was not uneasie for me both to Take
notice of divers_ Phaenomena, _overlook'd by prepossest Persons, that
seem'd not to suite so well with the_ Hermetical _Doctrine; and, to
devise some Experiments likely to furnish me with Objections against
it, not known to many, that having practis'd Chymistry longer
perchance then I have yet liv'd, may have far more Experience, Than I,
of particular processes._
_To conclude, whether the Notions I have propos'd, and the Experiments
I have communicated, be considerable, or not, I willingly leave others
to Judge; and This only I shall say for my Self, That I have
endeavour'd to deliver matters of Fact, so faithfully, that I may as
well assist the lesse skilful Readers to examine the Chymical_
Hypothesis, _as provoke the Spagyrical Philosophers to illustrate it:
which if they do, and that either the Chymical opinion, or the
Peripatetick, or any other Theory of the Elements differing from that
I am most inclin'd to, shall be intelligibly explicated, and duly
prov'd to me; what I have hitherto discours'd will not hinder it from
making a Proselyte of a Person that Loves Fluctuation of Judgment
little enough to be willing to be eas'd of it by any thing but
Error._
PHYSIOLOGICAL
11