And first I must invite you to take notice of a certain passage in _Helmont_;[14] which though I have not Found much heeded by his Readers, He Himself _mentions_ as a notable thing, and I take to be a very considerable one; for whereas the Distill'd oyle of _oyle-olive_, though drawn _per se_ is (as I have try'd) of a very sharp and fretting Quality, and of an odious tast, He tells us that Simple oyle being only digested with _Paracelsus's sal circulatum_, is reduc'd into dissimilar parts, and yields a sweet Oyle, very differing from the oyle distill'd, from [Errata: distill'd from] sallet oyle; as also that by the same way there may be separated from Wine a very sweet and gentle Spirit, partaking of a far other and nobler quality then that which is immediately drawn by distillation and call'd _Dephlegm'd Aqua vitae_, from whose Acrimony this other spirit is exceedingly remote, although the _sal circulatum_ that makes these _Anatomies_ be separated from the Analyz'd Bodies, in the same weight and with the same qualities it had before; which Affirmation of _Helmont_ if we admit to be true, we must acknowledge that there may be a very great disparity betwixt bodies of the same denomination (as several oyles, or several spirits) separable from compound Bodies: For, besides the differences I shall anon take notice of, betwixt those distill'd Oyles that are commonly known to Chymists, it appears by this, that by means of the _Sal Circulatum_, There may be quite another sort of Oyles obtain'd from the same Body; and who knowes but that there may be yet other Agents found in Nature, by whose help there may, whether by Transmutation or otherwise, be obtain'd from the Bodies Vulgarly call'd Mixt, Oyles or other substances, Differing from those of the same Denomination, known either to Vulgar Chymists, or even to _Helmont_ Himself: but for fear You should tell me, that this is but a conjecture grounded upon another Man's Relation, whose Truth we have not the means to Experiment, I will not Insist upon it; but leaving You to Consider of it at leasure, I shall proceed to what is next. [Footnote 14: _Illud notabile, in vino esse Spiritum quendam mitiorem ulterioris & nobilioris qualitatis participem qu[=a] qui immediate per distillationem elicitur diciturque aqua vitae dephlegmata, quod facilius in simplici Olivarum oleo ad oculum spectatur. Quippe distillatum oleum absque laterum aut tigularum [Errata: tegularum] additamento, quodque oleum Philosophorum dicitur, multum dissert ab ejus oleitate; quae elicitur prius reducto oleo simplici in partes dissimilares sola digestione & Salis circulati Paracelsici appositione; siquidem sal circulatum idem in pondere & quantitatibus pristinis ab oleo segregatur postquam oleum olivarum in sui heterogeneitates est dispositum. Dulce enim tunc Oleum Olivarum ex oleo, prout & suavissimus vini spiritus a vino hoc pacto separantur, longeque ab aquae vitae acrimonia distinctus._--Helmont. Aura vitalis, pag. 725.]