CHAP. XIII.
Of Mistion and Temperament.
CHrysippus asserteth aa 1.1 Spirit moving it selfe to it selfe, and from it selfe, or a spirit moving it selfe backwards and for∣wards. He calleth it spirit, as being moved aire, answering in some proportion to the Aether, so that it both meets in one; and this motion is only according to those who think, that all na∣ture receiveth mutation, solution, composition, and the like.
Composition, mixtion, temperament, and confusion are different. Composition is a contract of bodies, whose superficies are con∣tiguous to one another, as in heaps of grain or sand. Mixtion is of two or more bodies, whose qualities are diffused through the whole, as we see in fire, and red hot iron, and in our own ••oules; for every where there is a diffusion through entire bodies, so as one body doth passe through another. Temperament is of two or more humid bodies, whose qualities are diffused through the whole. Mixtion is also common to drie bodies, as to fire and iron, to the soul and the body, temperament only to the humid. For qualities appear from the temperament of severall humid things, as of wine, honey, water, vinegar, and the like; that in such temperament, the qualities of the things tempered re∣main, is evident from this, that oftentimes they are by some art separated from one another. For, if we put a spunge dipped in oyle into wine mixt with water, the water, separating it selfe from the wine, will gather to the spunge. Lastly, confusion is the transmutation of two or more qualities into another of a different nature, as in composition of Unguents and Medicines.