SOME few Months after this, our Famous _English_ Virtuoso, Sir _Kenelm Digby_, happening in his Travels to be at the Grand Duke's Court, an Opportunity fell accidentally in the Knight's way to do the Fryar a Service, which the good old Man took so kindly at his hands, that he recompenc'd the Curtesy with a Discovery of his Secret; and soon after returning into _Persia_, left no Man in _Europe_ Master of the same but Sir _Kenelm_, who was the first Person that brought the _Recipe_ into _England_, and that here wrought Cures by it himself, and recommended it to the Practice of others; so that, in a little Time, every Mother-Midwife, and Country Fleabeard, became topping Surgeons, especially for the Cure of Green-Wounds; for it is not to be trusted to, in other Cases. THIS Sympathetick Powder, by which many Miracles have been perform'd at great Distances, is nothing more than the Simple Powder of _Roman Vitriol_, either Chymically prepar'd, or imperfectly calcin'd in the Beams of the Sun; from whence, 'tis said, it derives a very balsamick Virtue; a little of this apply'd to any Instrument that has done Mischief, or to a Rag dip'd into, or stain'd with, the Blood of a Wound, never fails of Curing the Patient at the widest Distance, provided the Wound be Curable. SIR _Kenelm Digby_, to advance the Credit of this surprising Medicine, speaks very largely in Commendation thereof, in a little Treatise of his, written first in _French_, upon the same Subject; wherein he boasts of a remarkable Cure perform'd by himself, in a most wonderful manner, with only the use of this astonishing Powder; and, therefore, as in religious Cases, Example goes beyond Precept, so, to convince you of the Miracles perform'd by Sympathy, Instances, perhaps, may prove more effectual than Arguments; for which Reason, I shall proceed to furnish you with a notable Experiment of this Magical Powder, and so conclude.