The Form of Man's Exterior and Interior Parts, are so different, and so numerous; that I cannot describe them, by reason I am not so learned to know them: But, some Parts of a Human Creature, Man names _Vital_; because, the least disturbance of any of those Parts, endangers the Human Life: and if any of those Vital Parts are diminished, I doubt whether they can be restored; but if some of those Parts can be restored, I doubt all cannot. The Vital Parts are, the Heart, Liver, Lungs, Stomack, Kidneys, Bladder, Gaul, Guts, Brains, Radical Humours, or Vital Spirits; and others which I know not of. But this is to be noted, That Man is composed of Rare and Solid Parts, of which there are more and less Solid, more and less Rare; as also, different sorts of Solid, and different sorts of Rare: also, different sorts of Soft and Hard Parts; likewise, of Fixt and Loose Parts; also, of Swift and Slow Parts. I mean by Fixt, those that are more firmly united. CHAP. III. Of Human Humours. _Humours_ are such Parts, that some of them may be divided from the whole Body, without danger to the whole Body; so that they are somewhat like Excremental parts, which Excremental parts, are the superfluous parts: for, though the Humours be so necessary, that the Body could not well subsist without them; yet, a Superfluity of them is as dangerous, (if not more) as a Scarcity. But there are many sorts of Humours belonging to a Human Creature, although Man names but Four, according to the Four Elements, _viz. Flegm, Choler, Melancholy_, and _Blood_: but, in my opinion, there are not only several sorts of _Choler, Flegm, Melancholy_, and _Blood_; but other sorts that are none of these Four. CHAP. IV. Of BLOOD.