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My next Obscrvation,was in aY oung Gentlewoman I was at theDissectingtogether withDr. Morton t pr.Dan.Cox,Sic. in Nov. 1679. Whcre,besides sc-veral other particulars we did obscrve that may more nearly re’ate to tho Gauleof her Death and lingring Illnels, we obscrved an unusual Tumor of the rightTeßicle or Ovarium , which wasswelled into two Vesiclesor Bags, almost asbig as a Man’s Head h one of thesc was much leß than the other ; both con-sisted of a thin Membrane, and had a free communication on the inside onewith another ; they were filled with a Liquor and Substance much rescmblingCurds and Whey ; for in a thin pale Lympha or Serum, there did swim inseveral lumps and Pieces a Steatomatous or cruddy Matter, which to theTouchwas lost and fatty, of a dilute yellowifh Colour, and of no ill or remarkableSmell. Some of it being put into warm Water did in part dissolve. Theinside of thesc Bags was fmooth, and witbout the adhesion of this Matter,and in no place as we obscrved difcoloured. One of thesc lumps or pieceswas half as big as a Man’s Fist, and in it we found a great deal of Hair,as likewise in the other pieces, but not in so great plcnty. This Hair wasof a Silver colour, very foft and fine, but strong; and some of it 1 Foocand 3 Inches long. It did not leern to grow, or to be fastened to any park,but to lye entangled in this cruddy Matter. By keeping, this Hair is grownsomething browner,and by often handling, and by freeing it from that crud-dy or fatty Substance, much of it broken fhorter. But on the outside of thelarger Bladder or Bag, we me; with the remaining part of the Ovarium orTeßicle , and in it we obscrved several Egg?, or at least Hydatides, of this[o o[] bignels. But we were more surpriz’d to find there a Bony Sub-itanee, which so exactly represcnted an Eye or Dog-tooth in its shape,hardneß, colour, and all things, that I cannot better liken it to any thingbesides. Ic firmly sdbered at its Basis, whtre ’tis broadess, to the Mem-branes of the Ovarium, and had of eachsideofit (at fmall distanccs) twoother Bones or Teeth, but they were but fmall, and not of so regulär aFigure.

This Tooth and Hair gave a Suspicion to some, that poslibly theymight be the parts of a corrupted Embryo, but I rather t hink not; tor if so,we should have met with Bones, or at least a purulent Matter; besides, theTooth was without the Cystis or Bag, in the Ovarium , the Hair within- Irat her look upon it as a Lusus Natura , her endeavouring to form something,and being difappointed of an Animal, produced a Vegetable.. Teeth. andBones.at first are löst Membrane? or Tendons hardeningintoCartilages, andCartilages into Bones. The Tendons of the Legs ofFowl, as of an old Tur~key, become Bony ; so have I sten the Arteria Aorta, part of the Emulgentand Ihac Brauches of a Woman at Oxford, that were Oßeous. Dr. Wtlliimentions the like of the CarotiJ Artery , and I have scen ir also in the greatArtery near the Heart in a Flor so, and ’tis often to be met with in theHeartsof Oxenand Decr. Once I obscrved theoutward Membrane of theLiver in an Humane Body, that was part Schirrhous, part Bony once Imet with the some in the Spleen, and at another time (in an Ancient Gen-tleman) on the outside of the Lungsi So that even here possibly, part of

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