IT is wonderfully related of _Gallus Vibius_, that he became _Mad_, not casually, but on purpose; for whilst he imitated Mad-Men, he so assimilated their _Madness_ to himself by the _Counterfeit_, that he fell at last into _real_ MADNESS. ST. _AUSTIN_ mentions _some Men_, who could move their _Ears_; and _others_ who could move the _Crown_ of their Heads to their _Foreheads_, and _replace_ them at Pleasure. He writes of _Another_ also, who could sweat whenever he had a mind. I have likewise known some _Persons_ myself, who could weep and shed abundance of _Tears_ at Will and Pleasure; _others_, who could bring up what they had _swallow’d_ of any kind, as _Gold_, _Silver_, &c; and _others_ again, who could so naturally _imitate_ and express the VOICES of _Birds_, _Cattle_, _Dogs_, &c; that they could not easily be distinguished. YEA, and farther yet, many _Learned Authors_[43] testify by divers Examples (of _Cajetava_, _Æmilia_, &c.) that _Women_ have been turn’d into _Men_: Which some would persuade us to believe, to be an _Effect_ of the Force of a vehement _IMAGINATION_, acting upon the _Soul_, with which it is of a near _Affinity_, beyond all the Power of SENSE. AS to this Point, I am no ways to question the _Veracity_ of what so many excellent Men have confirmed; but (granting it to be so) I think we may find more probable _Reasons_ for it, than all the _Powers_ of _IMAGINATION_, how great soever and marvellous they may be: Whereof I shall mention _That_, which seems to be the most _rational Cause_; viz. An extinguish’d or latent _forming Faculty_[44], which (however) sometimes has _exerted_ itself again, like the BLAZING of a raked or resuscitated _Fire_. FOR as our _Teeth_ take their Beginning _in_ the WOMB, but are perfected _without_, as _Bartholomæus Eustachius_ teacheth; and as the _Teeth_, call’d _Dentes sapientiæ_, are generated, and break out, even after the 30th Year of our Age: So it may be, that the _virile Genitals_ have been imperfectly begun in the WOMB, and that this _forming Faculty_ has only perfected them by little and little; so that at last they have sprung forth and appear’d, after shaking off the _Pudendum_. And consequently such WOMEN as _Those_ (upon _Dancing-Bouts_, or the like, when the _Blood_ and _natural Heat_ had been strongly exagitated) have turned into MEN. HOWEVER _That_ be, I very well know that when the _Soul_ is elevated and inflam’d with a fervent _IMAGINATION_, it may not only _affect_ its own proper _Body_, but also _That_ of ANOTHER.