And first, Things become black by a sooty and fuliginous matter proceeding from the Sulphur of bodies torrified; not taking _fuligo_ strictly, but in opposition unto ἀτμὸς, that is any kind of vaporous or madefying excretion; and comprehending ἀναθυμίασις, that is as _Aristotle_ defines it, a separation of moist and dry parts made by the action of heat or fire, and colouring bodies objected. Hereof in his Meteors, from the qualities of the subject he raiseth three kinds; the exhalations from ligneous and lean bodies, as bones, hair, and the like he calleth κάπνος, _fumus_, from fat bodies, and such as have not their fatness conspicuous or separated he termeth λίγνυς, _fuligo_, as wax, rosin, pitch, or turpentine; that from unctuous bodies, and such whose oyliness is evident, he named κνίση or _nidor_. Now everyone of these do black bodies objected unto them, and are to be conceived in the sooty and fuliginous matter expressed. I say, proceeding from the sulphur of bodies torrified, that is the oylie fat, and unctuous parts wherein consist the principles of flammability. Not pure and refined sulphur, as in the Spirits of wine often rectified; but containing terrestrious parts, and carrying with it the volatile salt of the body, and such as is distinguishable by taste in soot; nor vulgar and usual sulphur, for that leaves none or very little blackness, except a metalline body receive the exhalation. I say, torrified, sindged, or suffering some impression from fire; thus are bodies casually or artificially denigrated, which in their naturals are of another complexion; thus are Charcoals made black by an infection of their own suffitus, so is it true what is affirmed of combustible bodies. _Adusta nigra_, _perusta alba_; black at first from the fuliginous tincture, which being exhaled they become white, as is perceptible in ashes. And so doth fire cleanse and purifie bodies, because it consumes the sulphureous parts, which before did make them foul: and therefore refines those bodies which will never be mundified by water. Thus Camphire of a white substance, by its _fuligo_ affordeth a deep black. So is pitch black, although it proceed from the same tree with Rosin, the one distilling forth, the other forced by fire. So of the suffitus of a torch, do Painters make a velvet black: so is lamp-black made: so of burnt Harts-horn a sable; so is Bacon denigrated in chimnies: so in Feavers and hot distempers from choler adust is caused a blackness in our tongues, teeth and excretions: so are ustilago, brant corn and trees black by blasting; so parts cauterized, gangrenated, siderated and mortified, become black, the radical moisture, or vital sulphur suffering an extinction, and smothered in the part effected. So not only actual but potential fire: not burning fire, but also corroding water will induce a blackness. [SN: _Why the smoak of pure Sulphur blacks not._] So are Chimnies and Furnaces generally black,