The Sceptical Chymist: or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject.Boyle, Robert
Philosophy
The Sceptical Chymist: or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject.
Boyle, Robert
Chemistry -- Early works to 1800
This Disparity is also highly eminent in the separated sulphurs or
Chymical Oyles of things. For they contain so much of the scent, and
tast, and vertues, of the Bodies whence they were drawn, that they
seem to be but the Material _Crasis_ (if I may so speak) of their
Concretes. Thus the Oyles of Cinnamon, Cloves, Nutmegs and other
spices, seem to be but the United Aromatick parts that did ennoble
those Bodies. And 'tis a known thing, that Oyl of Cinnamon, and oyle
of Cloves, (which I have likewise observ'd in the Oyles of several
Woods) will sink to the Bottom of Water: whereas those of Nutmegs and
divers other Vegetables will swim upon it. The Oyle (abusively call'd
spirit) of Roses swims at the Top of the Water in the forme of a white
butter, which I remember not to have observ'd in any other Oyle drawn
in any Limbeck; yet there is a way (not here to be declar'd) by which
I have seen it come over in the forme of other Aromatick Oyles, to the
Delight and Wonder of those that beheld it. In Oyle of Anniseeds,
which I drew both with, and without Fermentation, I observ'd the whole
Body of the Oyle in a coole place to thicken into the Consistence and
Appearance of white Butter, which with the least heat resum'd its
Former Liquidness. In the Oyl of Olive drawn over in a Retort, I have
likewise more then once seen a spontaneous Coagulation in the
Receiver: And I have of it by me thus Congeal'd; which is of such a
strangely Penetrating scent, as if 'twould Perforate the Noses that
approach it. The like pungent Odour I also observ'd in the Distill'd
Liquor of common sope, which forc'd over from _Minium_, lately
afforded an oyle of a most admirable Penetrancy; And he must be a
great stranger, both to the Writings and preparations of Chymists,
that sees not in the Oyles they distill from Vegetables and Animals, a
considerable and obvious Difference. Nay I shall venture to add,
_Eleutherius_, (what perhaps you will think of kin to a Paradox) that
divers times out of the same Animal or Vegetable, there may be
extracted Oyles of Natures obviously differing. To which purpose I
shall not insist on the swimming and sinking Oyles, which I have
sometimes observ'd to float on, and subside under the spirit of
_Guajacum_, and that of divers other Vegetables Distill'd with a
strong and lasting Fire; Nor shall I insist on the observation
elsewhere mention'd, of the divers and unminglable oyles afforded us
by Humane Blood long fermented and Digested with spirit of Wine,
because these kind of oyles may seem chiefly to differ in Consistence
and Weight, being all of them high colour'd and adust. But the
Experiment which I devis'd to make out this Difference of the oyles of
the same Vegetable, _ad Oculum_, (as they speak) was this that
followes. I took a pound of Annisseeds, and having grosly beaten them,
caused them to be put into a very large glass Retort almost filled
with fair Water; and placing this Retort in a sand Furnace, I caus'd a
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account