Page:Experimentsnotes00boyl.pdf/39

 ments, or to the Hypostatical Principles of the Chymists.

And having here (as in a proper place) to avoid ambiguity, premised once for all, this * Summary Declaration of the sense, agreeably whereunto I would have these Terms understood in the following Notes about the Origine of Particular Qualities; I proceed now to set down some few examples of the Mechanical Production of Cold & Heat, beginning with those that relate to the former, because by reason of their Paucity they will be quickly dispatcht. And I hope I shall not need to make an Apology for mentioning no greater number; since I scarce remember to have met with any Instances of this kind in any of the Classick Writers of Natural Philosophy.