An exact collection of the choicest and more rare experiments and secrets in physick and chyrurgery (both cymick and Galenick) viz. of Leonard Phioravant, Knight and doctour in physick and chyrurgery, his Rational secrets and chyrurgery &c. : whereunto is annexed Paracelsus's One hundred and fourteen experiments : with certain excellent works of G.B. áa ortu Aquitano ; also Isaac Holandus, his secrets concerning his vegetal and animal work : with Quercetanus his Spagyrick antidotary for gun-shot : also certain collections out of some manuscripts of Dr. Edwards and other physitians of note ...

Of Fistulaes, and their kinds.

ALl manner of Sores that doe not siccatrize perfectly, and have communication with the inward parts, are cal∣led Fistulaes, and we term them in Italian Sofio, or Spiraculo, as yee may see by experience, and this is perillous, when a Fi∣stula closeth, being in the body, and specially those Fistulaes that are in the Fundament, for Nature her self doth ingender it for ease. But these Fistulaes that come in divers parts of the body are troublesome, but not perillous: Also all such sores as tarry long before they be incarnated come to Fistu∣laes, and many times it cometh through their being long curing, by tenting with their tents, which are the causes that Nature maketh a Callow, and leaveth the sore so hol∣low, that it will never be filled with flesh, but so remain hollow, as it is seen easily by experience. There be other sorts of Fistulaes in form of a sore, and they be those sores that most commonly come on the leggs, the which doe purge a long time, and are also very hard to heal, because if yee heal one of them presently, there will rise another hard by it, and that is a kind of Fistula▪ There is another kind of Fi∣stula that is caused of those sores that are upon the bone, the which by his continuance doe break and consume the skin and the bone, and these many times remain Fistulated, but who so taketh away the cause of the sore, nature it self will pre∣vail mightily, and will heal it, as may be seen daily by ex∣perience, in those that be so troubled. The Fistulaes that come in the eyes, are called Fistula Lachrymosa, and they have

some communication with the inward parts, and are evill to be healed. Because first the cause must be taken away inwardly, and then nature will heal it by it self, as I have seen by expe∣rience, so that these are the kinds of Fistulaes most known unto all men, and the causes of these Fistulaes are two, and for my part I am fully perswaded it is so. The First is of wounds evill healed, that remain Fistulated. The Second cause, I find to be of sores caused of the Pox, and to shew a truth, yee shall cure them of the Pox, and their Fistulaes will heal of themselves without any other help, as it is daily to be seen. There may be many other causes the which as yet I know not, but these two are a sufficient reason, and to be considered of the Professors of this Art, if they desire to come to any excellency; and therefore I will reason no more of the matter, because the Science, and my experience will reach no further.