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Boyle, Robert, 1627-1691

"Experiments and Considerations Touching Colours (1664)"


And for my part, that which I marvel at in this business, is, the Drinkers
being able to take down so much Water, and spout it out with that violence;
though Custome and a Vomit seasonably taken before hand, may in some of
them much facilitate the work. But as for the changes made in the Liquors,
they were but few and slight in comparison of those, that the being
conversant in Chymical Experiments, and dextrous in applying them to the
Transmuting of Colours, may easily enough enable a man to make, as ev'n
what has been newly deliver'd in this, and the foregoing Experiment;
especially if we add to it the things contained in the XX, the XXXIX and
the XL. Experiments, may perhaps have already perswaded You.
_EXPERIMENT XLV._
You may I presume (_Pyrophilus_) have taken notice, that in this whole
Treatise, I purposely decline (as far as I well can) the mentioning of
Elaborate Chymical Experiments, for fear of frighting you by their
tediousness and difficulty; but yet in confirmation of what I have been
newly telling you about the possibility of Varying the Colours of Liquors,
better than the Water-drinkers are wont to do, I shall add, that _Helmont_
used to make a preparation of Steel, which a very Ingenious Chymist, his
Sons Friend, whom you know, sometimes employes for a succedaneum to the
Spaw-waters, by Diluting this _Essentia Martis Liquida_ (as he calls it)
with a due proportion of Water.


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